Global financing and exchange rate mechanisms Essay

Global financing and exchange rate mechanisms - Essay Example Big Mac was specifically under consideration because it was the only chain present in almost every country and have an affordable price, that can be dealt with an average income individual (Kotler & Armstrong, 2009). BIG MAC THEORY: Mc Donald’s best selling product is Big Mac. While hanging out with friends, or for lunch or dinner, people order mouth watering Big Mac with accessories. Big Mac Theory is a theory named to make this product, the most profiting product around the globe. The theory that stabilizes the Big Mac profit is the relationship between currencies, the United States Dollar (USD) with other foreign currencies at current exchange rates. Fed, an economist calls this exchange rate theory a game of achieving with currency rates. Big Mac theory tells us that the original exchange rate that is a nominal exchange rate was adjusted for the ratio of different prices to local prices that allows economists to compare the purchasing power of different currencies (Kotler & Armstrong, 2009). To make it clearer PPP Purchasing Power Parity of foreign currencies is measured by the use of Big Mac Theory. Local currency is used for price comparison and will convert it into USD. The country in which Big Mac price in terms of USD is supposedly be higher, it is considered to have an overvalue in comparison to U.S. dollars. Opposite to this if the estimated price in terms of USD is low then it is an undervalued currency. Globally it is considered to be a consistent price around the globe. This theory is referred as Purchasing Power Parity (Kennedy, 2006). Other then Purchasing Power Parity, many factors are there to put influence on the price of Big Mac. Factors other than PPP are labor cost, rent, and other surcharges, which later are added while fixing the final price but that only affects the local consumers and have no relation with McDonald’s head institution. If the exchange rates are allowed to fluctuate, the currency value will establish and ca n be factorized efficiently in these variables that allow investors to employ capital inflow efficiently. In short, Big Mac theory is about profits at exchange rates (Kotler & Armstrong, 2009). GLOBAL FINANCING OPERATIONS AND EXCHANGE RATE MECHANISMS: Global financing operations are for those institutions that work or invest on an international level and follow set standard regulations, opposed to institutions who work on regional or national level. To maintain these operations, IMF, World Bank, government agencies and ministries of finance design laws and rules through understanding and economic laws. McDonald’s is an international food chain and running its franchises all around the globe. It follows a law of one price that means that selling price is fixed in one currency and is sold at the same rate in any country at the exchange rate (Kennedy, 2006). Purchasing Power Parity (PPP) explains that purchasing power of Big Mac vary according to the price that comes out at exch ange rate. For example if Big Mac is sold at $2.5 in U.S., the rate of Big Mac in U.K will be ?2. It does not include tariff charges or carriers to keep cost neutral (Kotler & Armstrong, 2009). RISK MANAGEMENT: McDonald’s Big Mac is sold every day in different regions in different quantities. It very much depends upon the purchasing power

Can a Coffee Shop Brand Developed in Kuwait Become Significant in the Dissertation

Can a Coffee Shop Brand Developed in Kuwait Become Significant in the Global Market - Dissertation Example The food and beverage industry is a major contributor towards growth in all the economies and has witnessed a high and consistent growth rate. The industry is expected to generate CAGR of 3.5% to about $7trillion USD by the year end 2014. With respect to structure of the industry it is highly fragmented and the top market players such as Nestle, Unilever, Kraft and others accounts for only 5% of the total value. The economic downturn also had an adverse impact on industries including the food and beverage industry (IMAP, 2010, p. 4). ... Although the coffee shops have been suffering a setback, but the growth in speciality coffee has resulted mainly from three areas which includes home consumption derived from coffee machines which available to the consumers, new product targeting the young generation and through Quick service cafes or restaurants which serves coffee beverages like lattes and cappuccino attracting the young customers. This trend is being accelerated in the current global coffee market giving rise to high number of coffee outlets selling coffee beverages (Guyer, 2009). For the dissertation â€Å"Kings Coffee Co† is chosen which plans to expand its coffee business in the UK market. Kings Coffee Co is a private organisation and can be categorised under coffee both roasted and green and is located in Safat in Kuwait. The coffee shop has been doing well in Kuwait and plans to expand its business and adopt the internationalisation mode of strategy. Before a brand expand itself into foreign countries it is necessary to evaluate the opportunities in the desired target market and the future opportunities. Thus in order to analyse the future opportunity, the UK coffee market has been analysed to determine growth rate of coffee business and establishment of Kuwait coffee brands in the UK coffee market. Kuwait Coffee Market In Asia, particularly Kuwait, which is predominantly inhabited by Arabs, many are fond of coffee and as a result it is possible that a coffee shop built and developed in Kuwait can flourish with ease. In addition, the growing technological market can help in the growth of the coffee shops globally as many can view its profile online and eventually visit the place and feel part of the achievement. This project proposal tries

Text Analysis of Hamlet and Man on Fire Essay Example for Free

Text Analysis of Hamlet and Man on Fire Essay Over time Hamlet transfigures from a highly emotional state to a temperament which is extremely methodical and emotionally stale. This mentality leads to a course of self-imposed blockades that ultimately result in the deferment of his revenge. Creasy, contrastingly, begins in an emotionless and detached state, a facade consolidated through his apparent want to die. However, this icy stature is chiseled away by Peta when he is assigned as her bodyguard. Upon Peta’s kidnapping Creasy is enraged, with reason exchanged for an intense and tremendously emotional approach for revenge. Hamlet’s first soliloquy clearly exhibits the magnitude to which his emotions have informed and consumed his thoughts. Even before knowing the reasons behind his state, it is established that Hamlet has a wish to die, a point pushed by the expression of ‘too too solid’ in the opening sentence. This repetition of ‘too’ expresses Hamlet’s dismay at his own permanency, an idea consolidated in the following line with the words ‘thaw’, ‘resolve’ and ‘dew’ contrasting to make a depiction of evanescence. This remarks that he does not wish to live long . Hamlet also shares a rather resentful view of the world and this is represented through the use of decay imagery. When Hamlet depicts ‘how weary, stale, flat and unprofitable’ the world appears to be he wholeheartedly believes that there is no worth in the world and that it possesses things only ‘rank and gross in nature’. Additionally, the use of caesurae in the sentence indicates, in its very nature, the desultory state of Hamlet. Dislocated sentence structure is also an indicative part of enforcing his wildly emotional state. Constant and erratic leaps between ideas in the mind of Hamlet lets us know that he is not thinking methodically or in a way that would be considered steady. This concoction of chopping and changing ideas is easily displayed where Hamlet says ‘like Niobe, all tears: why she, even she—O, God! ’ This depicts how he redirects his thoughts as seemingly new ideas come to mind and this thus adds to the knowledge of Hamlet’s emotionally unpredictable frame of mind. In contrast, Creasy projects a completely different mental picture at the beginning of Man on Fire. He appears as a character that is very much in his right mind and objective of his emotions. This kind of emotionless facade is furthermore evident in Creasy’s unsociable stance when in the presence of Peta. An example of this comes when Peta asks Creasy whether or not he was scared of her to which he provides a very short, blunt reply of ‘I used to be. At first. But not anymore. ’ This dialogue also indicates that Creasy may have social difficulties and by extension is lost in ways of approaching people or at least those he is not familiar with. An obvious inference of this lack of communication is that Creasy is lonely and quite dejected. A view of the world as being hopeless is also taken up by the character and evident when Peta says that ‘there are some good things in the world’ and Creasy replies ‘Oh yeah, like what. ’ In this way the characters of Hamlet and Creasy are similar – sharing a correlating perspective in which the world is of no prospect. An amalgamation of all these elements lead to an inevitable emotional trough for Creasy; in which he falls into total despondency. This state is characterized through the song ‘Blue Bayou’ which Creasy plays while drinking in the night. In this scene he becomes suicidal as he is assaulted by images and thoughts from which he cannot escape; leading the song to becoming fragmented pieces of non-diagetic sound. This fragmentation and seeming discord is emphasized by Scott who employs a magnitude of frantic panning and rapid cut shots in order to display the breakdown in Creasy’s mental state. When the scene nears its end, Creasy attempts to take his life with a gun that inevitably fails to deliver the life ending bullet. At this point, a non-diagetic and mellow piano starts that indicates a kind of relief to the perplexity of the previous moments. The contemplation of suicide is comparatively explored by Hamlet in the third act. Here, he questions, quite simplistically, his existence with ‘to be, or not to be. ’ From this point, Hamlet appears to ponder reasons for living or ying by asking whether it is ‘nobler in the mind to suffer the slings and arrows of outrageous fortune, or to take arms against a sea of troubles. ’ This analysis indicates that Hamlet has devolved from his highly emotional state to a temperament that is extremely methodical in nature, even when considering the ending of his own life. The use of the word ‘thus’ also indicates a fluent transition from one idea to another. Throughout the soliloquy Hamlet appears to be in search of reasons not to die rather than does that consolidate suicide. The most prominent idea being the ‘dread of something after death’. Evidence of this is most prominent when Hamlet states ‘ to die, to sleep;†¦for in that sleep of death what dreams may come’. This indicates fully his fear of life after death and perhaps a kind of retribution for his sins or that of which he will commit in ways of exacting revenge on Claudius. The analytical disposition assumed by Hamlet and his inherent rejection of passion ultimately leads to his downfall and thus, this is his tragic flaw. In contrast to this, Creasy establishes a strong bond of friendship with Peta and, in the wake of her kidnapping, transforms himself into an unstoppable and passionate force for revenge. The most evidential dialogue for this newly ignited passion comes when Creasy says ‘I’m gonna kill ‘em. Anyone that was involved. Anybody who profited from it. Anybody who opens their eyes at me. ’ These short sentences are indicative of his straight-to-the-point nature and disregard for excessive analytical thinking. Additionally, Tony Scott settles his use of cut shots and selects longer scenes to focus on Creasy’s intent for revenge and the fact that no external forces will impede his pursuit. Subtitles are also employed by Scott to emphasize certain key aspects of scenes and additional bolding of words within the subtitles makes features prominent still further. In all, Creasy’s heightened passion to rescue Peta leads to his downfall and this can be acknowledged as his tragic flaw. In conclusion, Creasy and Hamlet are two contradictory characters in terms of their mindsets over the course of their respective texts. Creasy in Man on Fire evolves for an icy, stale and emotionally objective state to a mentality of passion and purpose. A variety of cinematic techniques are employed to depict both demeanors of Creasy including cut shots, subtitles and diagetic and non-diagetic sound. Hamlet, alternatively, begins in a consumed state of passion that declines to a methodical manner involving enormous analytical evaluation. The final state of both characters are inevitably their tragic flaws and equally lead to their demise -fulfilling their roles as tragic heroes.

Design A 1 Bit Serial Adder Computer Science Essay

Design A 1 Bit Serial Adder Computer Science Essay The main aim of this project is to design a 1-bit serial adder, simulate its functionality and obtain a layout on silicon, using the 0.35 µ process from AMS. The circuit designed shows a working serial adder clocking at (100MHz of nsecs) with a delay of 0.56910nsec. The area of the layout is 99.3016.35  µm2 in this technology. The circuit performs an 8-bit addition in 0.569108 nsesc. The circuit uses a standard 1-bit full adder and it has a feedback loop using a D-flip-flop in order to transmit the carry bit to the next input value. The final layout product has 3-input pads and 2-output pads, with power and ground pads. The process known as serial addition of binary numbers is well known in the computing and units capable of performing such serial binary addition ordinarily comprise a basic portion of more complex computation devices. In the past, such serial adders for binary numbers have employed vacuum tube circuitry for the most part and have accordingly been subject to the disadvantages that they are relatively in large size, fragile in configuration and are subject to operating failures. These factors raise serious questions of disposition of components and problems of maintenance. The present invention serves to obviate the foregoing difficulties and in essence provides a serial adder structure capable of performing full addition of binary numbers. It is accordingly an object of the present invention to provide an improved serial adder for use in computing applications. An object of the present invention resides in the provision of an improved serial adder for binary digital applications employing magnetic amplifiers as components thereof. Another object of the present invention is the provision of the serial adder for binary numbers which adders can be made in relatively smaller sizes. A still further object of the present invention resides in the provision of a computation device comprising, in combination, a plurality of magnetic amplifiers and a plurality of gating devices so interconnected with one another that the mathematical process known as a serial bit addition. The binary adder of the present invention includes provision for selective coupling the input train pulses to be added as well as carry pulses produced by the device itself to the plurality of gates, and the gates are adapted by themselves to selectively pass signal pulses required for the operation or inhibition of the plurality of magnetic amplifiers mentioned above. In digital s ystems, digital signal processing and control systems we can control it when we are able to count. Addition is the fundamental operation for all these systems. The fastness and accuracy are highly influenced by the adders we are use for the circuit design. Adders are very important components in the digital components because of their extensive use in digital operations such as multiplication, subtraction and division. The execution of binary operations inside a circuit would be greatly advanced by improving the performance of the digital adders. The main aim of designing the bit serial adder is to Perform one bit at a time, using the first bit operation results to influence the processing of subsequent bits. It reduces the amount of hardware required as it passes all the bits in the same logic. However this approach needs 1/nth part of hardware when compared to the n-bit parallel adders. As we are using 1-bit instead of n-bits its structure reduces the signal routing and performs at high speed as we are using 1bit register for the temporary storage and one full adder rather than an n-bit adder. The reduction in the price of the logic results in taking n clock cycles to execute this serial hardware, whereas parallel hardware executes in one clock cycle. This bit structure deals with the bit stream hence this have been successfully used in many applications like digital systems, digital signal processing, control systems etc. It was extremely popular in 2-5u technology range. The performance of a digital circuit block is gauged by analysing its power dissipation, layout area and its operating speed. The main aim of this project is to design a 1-bit serial adder. Through this project research we get the knowledge of working behaviour and performance of the 1-bit serial adder. Adders are the basic components for the designing of any digital circuit. Adders are very important components in the digital components because of their extensive use in digital operations such as multiplication, subtraction and division. The execution of binary operations inside a circuit would be greatly advanced by improving the performance of the digital adders. The main aim of designing the bit serial adder is to perform one bit at a time, using the first bit operation results to influence the processing of subsequent bits. Here in this case the one bit serial adder is designed by using a flip-flop and full adder. . This circuit has two stages full adder stage for the addition of two bits that are entered serially and second stage is flip-flop stage which temporarily stores the carry until the next stage is processed. The temporary storage of the carry in the flip-flop depends on the clock pulse. Its design principle shows how the two inputs entered serially. These two inputs will be added by the full adder along with the carry which was temporarily stored by the flip-flop and gives us the sum output and carry output. The normal 1-bit serial adder uses the XOR gates from the available core library. But in this XOR gate there is an OR gate which usually reduces the performance of the XOR gate. Hence the circuit has been modified by designing the XOR gate by using the NAND gates. What we would like to do now is find the easy way to use the sub tractor along with the serial adder circuit. By using this sub tractor we can subtract the lower bit value from higher value. This binary sub tractor has been added to one of the input which we are thinking to subtract the value. In our serial adder circuit the sub tractor is attached to the one of the inputs Y which is usually a XOR gate. This results in the subtraction of Y value from higher bit values. BACKGROUND 2.1 Addition: Addition is a process of adding bits. Binary addition means adding binary bits 0s and 1s and sum and carry generated in binary farm in any signal processing. Now lets consider the 4-bit addition example, As shown above A and B bits added giving Sum out by rippling the carry at each stage and C4 as final carry obtained. 2.2 Subtraction: Subtraction is a process of adding a positive bit to the negative bit. Negative of a bit means 2s compliment of it. This is nothing but adding 1 bit to LSB of its 1s compliment. 1s compliment is nothing but reversing the logic of the bits. Now lets consider the 4-bit subtraction example, The above subtraction technique dedicated to the subtracting a smaller binary from a larger binary. If it changes it just followed by few more steps as change sign bit (MSB) to zero, then change it to its 2s compliment as before process. Metal-Oxide-Silicon Field-Effect transistors (Mosfets) NMOS Transistor Here is a diagram of nmos transistor The source and drain are connected to the two blobs of n-type semiconductor material. The gate is on top, separated (and electrically insulated) from the rest of the transistor by a thin layer of silicon dioxide (same material as sand doesnt conduct at all). The source and drain are separated by p-type material. This forms two diodes pointed in opposite directions (when you have n-type next to p-type material, you get a diode), so no current can flow between the source and drain. When a high voltage (higher than the voltage level of the source, which is defined as the lower voltage of the two end terminals) is applied to the gate, it puts a positive charge on the gate. This attracts a negative charge in the region underneath the gate (opposite charges attract), forming a channel of negative charge carriers or an n-channel between the source and drain, which allows current to flow. So the nMOS transistor conducts when the gate is raised to the high voltage level, which we consider to be the logic level for 1 (true). PMOS TRANSISTOR The pMOS transistor is the dual of the nMOS transistor. You can look at the same diagram, but swap every n and p, and every + and -. Now, when the voltage at the gate is lower than the source (the higher voltage of the two end terminals for a pMOS transistor), we end up with a negative charge on the gate, which induces a positive channel underneath the gate, which allows current to flow. So the pMOS transistor conducts when the gate voltage is low, which we consider to be the logic level for 0 (false). The full names of what is being described are enhancement mode n-channel or p-channel metal-oxide semiconductor field effect transistors (MOSFET). Enhancement mode refers to the fact that we have to create the channel by applying voltage to the gate. (There are also depletion mode transistors that have a channel built in to start with.) Field effect refers to the fact that were using the electric field from the charge at the gate to control things. Metal-oxide semiconductor refers to the fact that were using an oxide to insulate the gate from the rest of the transistor. The two types of transistors are named for the channel: nMOS has an n-channel; pMOS has a p-channel. Cmos There are many ways to make logic gates (not to be confused with the gate of the transistor) out of transistors. What Im showing here is the dominant way that gates are done in digital electronics today, but there are many variations out there. This is called static CMOS logic. Static refers to the fact that there are not clocks involved. CMOS stands for complementary metal-oxide semiconductor. The complementary means we have both nMOS and pMOS transistors. The intuition behind this design style is simple. First, you dont want to have nMOS and pMOS transistors mixed up close to each other, because they need to be created on different types of substrate. So the natural style is to have a bunch of nMOS transistors together that pull the output one way for certain input values, and a bunch of pMOS transistors together that pull the output the other direction for the other input values. It turns out to work better to have the nMOS transistors pull down toward logic 0 and the pMOS transistors pull up toward logic 1. This is both for electrical reasons (nMOS conducts 0 better; pMOS conducts 1 better) and also to make it easy to get inverting gates. The following diagram showing how to make an inverter (a NOT gate): Such that we developed CMOS Technology by combination of Pull-up network of PMOS Transistors and Pull-down network of NMOS Transistors. All the CMOS gates are constructed using as shown below. CMOS Constructed by, PMOS transistors in Pull-up network stage and NMOS transistors in Pull-down network stage. OUTPUT going 1->0   The Pull-down NMOS transistors discharges the output capacitance. OUTPUT going 0->1 The output capacitance is charged through Pull-up PMOS transistors. MOSFETs transition states in CMOS Transistor: CMOS logic is better logic than PMOS and NMOS implementations individually. Because PMOS transistors are great at transmitting a logic 0 to1 voltage without signal loss, NMOS transistors are great at transmitting a logic 1 to 0 voltage. 4.2 NAND GATE: Constructed by, As shown below PMOS transistors in parallel and NMOS transistors in series. OUTPUT going 1->0    The series NMOS transistors discharges the output capacitance. OUTPUT going 0->1 The output capacitance is charged through parallel PMOS transistors. Circuit diagram of NAND Gate: Logic symbol of NAND Gate: Truth table of NAND Gate: A B OUTPUT 0 0 1 0 1 1 1 0 1 1 1 0 4.3 NOR GATE: Constructed by, As shown NMOS transistors in parallel and PMOS transistors in series. OUTPUT going 1->0 The parallel NMOS transistors discharges the output capacitance. OUTPUT going 0->1 The output capacitance is charged through series PMOS transistors. Circuit diagram of NOR Gate: Logic symbol of NOR Gate: Truth table of NOR Gate: XOR GATE: XOR is also called Exclusive OR gate or EOR gate. This is a digital logic gate, which is used to express the function of Exclusive Disjunction. Its behavior is similar to or gate with exclusive condition. Usually it is a 2-1 input output IC respectively. An output HIGH (1) will be resulted if one, and only one of its 2 inputs is HIGH (1). Result of output LOW (0) both the inputs should be same either low or high. We can say EX-OR gate as One or another, but not both. XOR gate is used to develop a binary addition. It gives the sum for given input bits. As shown above xor of 2 bits A and B gives its sum. A xor B = A.B + A.B Circuit diagram of xor gate: BASIC ADDER UNIT Addition of two binary numbers is the most basic arithmetic operation i.e. two bits. A combinational circuit which can add only two bits is known as half adder. A full adder is one that adds more than two bits i.e. three bits. Full adder uses two adders in its implementation. In this study full adder is the basic addition employed in all adders. HALF ADDER Half is a basic adder circuit that can perform addition of two bits and gives the output of sum and carry. Half adder circuit uses an Exclusive-OR and AND gates for sum and carry outputs. XOR gate gives the sum output and carry output is given by the AND gate. X and Y are inputs S is sum and C0 is carry. S = X.Y + X.Y = X Ġ¦ Y C = X.YIts schematic representation is as shown in the figure. The truth table of half adder is as shown below. X Y SUM C0 0 0 0 0 0 1 1 0 1 0 1 0 1 1 0 1 K-MAPPING of half adder circuit is given as shown below. Sum, S = X Ġ¦ Y Carry, C0 = X.Y FULL-ADDER Full adder can be formed by combining two half-adder circuits followed by the OR gate. It can perform the addition of three bits along with the carry input given as output from the previous one. The difference between half adder and full adder is that half adder cannot count more than two bits and cannot add the carry input which will be possible in full adder circuit. In this circuit, sum output is given by the XOR gate and the carry output is given by the AND gate followed by the OR gate. The block diagram of full adder circuit is as shown below. FULLADDER Sum S = X Ġ¦ Y Ġ¦ CI = (X Ġ¦ Y) Ġ¦ CI Carry C0 = (X .Y) + (X Ġ¦ Y).CI As shown in the above figure X, Y and CI are the adder inputs. The truth table of the above circuit is as shown below. X Y CI SUM C0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 1 1 1 By using K-mapping we will get SUM and CARRY as follows Sum S, Carry c0, D FLIP FLOP D- Flip flop is used in many applications. RS flip flop is the fundamental building block for the D- flip flop. It has only one data input. That is connected to the input S of RS flip flop where as D is inversely connected to the R input.. D- Flip flop is also having second input for holding the data which is known as Enable, simply represented as EN. The enable input is AND-ed with the D- Flip flop. D- Flip flop holds the data according to the clock pulse. It is constructed by using AND gates and NOR gates as shown in the below figure. D and EN are the inputs and Q and Q are outputs. The block diagram of the D-flip flop is as shown below. D- Flip flop acts as temporary data storage in the 1- bit serial adder. Its storage capacity depends on the number of stages. The storage capacity of the D- flip flop in this serial adder is the total number bits (0 and 1) of digital data it can retain. Its truth table is a shown below. D EN Q QN 0 Falling edge 0 X 0 Rising edge 0 1 1 Falling edge Qprev X 1 Rising edge 1 0 . The wave forms are attached in the results. CHAPTER 2 SERIAL ADDER The process known as serial addition of binary numbers is well known in the digital and units capable of performing such serial binary addition ordinarily comprise a basic portion of more complex computation devices. In the past, such serial adders for binary numbers have employed vacuum tube circuitry for the most part and have accordingly been subject to the disadvantages that they are relatively in large size, fragile in configuration and are subject to operating failures. These factors raise serious questions of disposition of components and problems of maintenance. The present invention serves to obviate the foregoing difficulties and in essence provides a serial adder structure capable of performing full addition of binary numbers. It is accordingly an object of the present invention to provide an improved serial adder for use in digital systems. The main aim of designing the bit serial adder is to perform one bit at a time, using the first bit operation results to influence the processing of subsequent bits. Here in this case the one bit serial adder is designed by using a D-flip flop and full adder. . This circuit has two stages full adder stage for the addition of two bits that are entered serially and second stage is D-flip flop stage which temporarily stores the carry until the next stage is processed. The temporary storage of the carry in the D-flip flop depends on the clock pulse. Its design principle shows how the two inputs entered serially. These two inputs will be added by the full adder along with the carry which was temporarily stored by the flip-flop and gives us the sum output and carry output. This is a practical serial adder that is used to add a stream of two bits addition. First it takes the Least Significant Bits (LSB) in addition. Its block diagram is as shown in the figure. As shown in the above figure the inputs Xi and Yi are serially entered into the full adder along with the temporary carry from the D-flip flop i.e. Ci and gives the carry output Ci+1 and sum output Si. Hence serial adder is simple and because of feedback looping bit delays are expected. It can be constructed with very low cost and it is the perfect adder at low speed operations. Si = Ci Ġ¦ Yi Ġ¦ Xi Ci + 1 = Yi . Ci + Xi . Ci + Xi . Yi = Ci . (Xi Ġ¦ Yi) + Xi . Yi The above equations represent the Sum and Carry outputs using Boolean equations. The construction of 1-bit serial adder is as shown in the figure. As shown in the figure the inputs X and Y are serially entered through the full adder along with the carry input which was the feedback output of full adder. In this circuit, sum output is given by the XOR gate and the carry output is given by the AND gate followed by the OR gate. D- Flip flop used in this circuit acts as a temporary storage of carry. TRUTH TABLE X Y C00 S CO 0 0 1 1 0 0 1 1 0 1 1 0 1 0 1 1 1 0 0 1 0 0 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 This entire design process and simulation can be done by using the mentor graphics version 2005 software. Chapter 3 Nand gate design of serial adder: 4.4 NAND gate is BETTER THAN NOR. As PMOS in parallel and NMOS in series the resultant transition delay at NAND gate is lesser than delay of NOR gate architecture. To make PMOS as fast as NMOS we need enlarge channel and P-regions, but that leads to large silicon layout, and more cost and power wastage. So At same speed NOR is always larger than NAND. So it makes NAND more efficient than NOR. W/L ratio of NAND gate is smaller than NOR gate. If inputs for gates are more then, NAND will be very faster than NOR. So we use sop implementation rather than pos. XOR GATE USING NAND GATES In PMOS holes flow very slowly when compared to the electrons in the NMOS technology. Hence NMOS is faster than PMOS transistor. In NOR gate PMOS transistors are connected in series and in NAND gate PMOS transistors are connected in parallel hence NAND gate is faster than the NOR gate. Now considering another case to make this one bit serial adder little bit faster compared to the normal one bit serial adder the XOR gate is constructed by using the NAND gates which works faster than the normal XOR gate. The reason for constructing this XOR gate is that in the core library we are using to design the entire circuit XOR gate internally contains an OR gate which usually reduces the performance of XOR gate. Its circuit diagram is as follows. X Y OUT 0 0 0 0 1 1 1 0 1 1 1 0Its truth table is as shown below. D- Flip Flop using nand gates: D Flip-Flop is the most popular Flip-Flop. As its output takes the value of data ( D ) input when the positive edge of clock pulse. D Flip-flop can be interpreted as a primitive memory cell. D Flip-flops are basically used as Shift registers. As a D Flip-flop can produce a output signal with a time period delay of given clock pulse for an input signal i.e., one bit shifted right to the input given signal. The principle of D flip-flop is it captures the signal at the moment the clock goes high, and subsequent changes of the data lines do not influence Q until the rise of next clock edge. thus it works as a edge triggering mode at clock signal rising. D Flip-flop is constructed using NAND gates as shown above, where D and CLOCK are the inputs and Q and QN are the out puts. X Y C00 S CO 0 0 1 1 0 0 1 1 0 1 1 0 1 0 1 1 1 0 0 1 0 0 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 CHAPTER 3 SUBSTRACTOR Up to now we have seen how simple logic gates perform binary addition. It is only logical to assume that the same circuit can also perform the binary subtraction. If we look at the possibilities involved in subtracting one bit number from another, we can quickly see that three of the four possible combinations are easy and straight forward. The fourth one involves a bit more. 0 0 = 0 1 0 = 1 1 1 = 0 0 1 = 1, with a borrow bit. That borrow bit is just like a borrow in decimal subtraction: it subtracts from the next higher order of magnitude in the overall number. The truth table of this sub tractor circuit looks like as shown below. This is an interesting result. The difference, X-Y, is still an exclusive-OR function, just as the sum for addition. The borrow is still an AND function, but is XY instead of XY. Adder/Subtractor logic developed using NAND gate (lower from higher): Addition is adding positive two bits. Subtraction is nothing but an addition where we add one positive bit to another negative bit. That means the second bit will be the positive number with negative polarity. We can convert positive binary to negative binary by its 2s compliment. 2s compliment is nothing but adding 1 bit to the LSB side of 1s compliment. 1s compliment is in any binary code if we swap bits by 1 bit with 0 bit and 0 bit with 1 bit. That is flip the binary code image. 1s compliment can be generated using XOR logic. when we give one pin of XOR gate dedicated to positive as logic 1, and other pin connected to the input binary bit, then output of EXOR will be swapped by 1s with 0s and 0s with 1s. At the same time other advantage is if the dedicated input pin is given logic, then out put will be same as input binary code. Such that in that whole circuit by changing selective pin as 0 logic it works as adder and by changing selective pin as 1 logic it works as subtractors 1s compliment input. Let we consider A + B it is a simple addition, For A B = A + (- B) = A + (B 1s compliment + 1) = A + B 1s compliment + 1 As shown above to find A B we give the full adder inputs as a to A, b to B 1s compliment and finally c in as positive logic 1. Thus adding 2 bits of A And B in this way we get A- B. Above developed subtractor circuit subtracts lower value bit from higher value bit so in 0-1 condition its not valid. ADDER TRUTH TABLE WHEN EN =0 EN X Y C00 S CO 0 0 0 1 1 0 0 0 1 1 0 1 0 1 0 1 0 1 0 1 1 0 0 1 SUBSTRACTOR TRUTH TABLE WHEN EN =1 EN X Y C00 S CO 1 0 0 1 0 0 1 0 1 1 X X 1 1 0 1 1 0 1 1 1 1 0 1 IMPLEMENTATION The entire process of designing and layout of the 1-bit serial adder circuit is done by using the mentor graphics version 2005. The required logic gates and flip flop has been taken from the core library. Once taking all the required components from the core library wiring has been done again using the core library. One wiring has been done the sheet has been saved and done the schematic check. Once the schematic check has been done successfully then the view point has been created. Once view point has been done successfully the circuit has been run for simulation. After having done the simulation successfully the output waveforms has been checked. This output waveforms results the working of the entire circuit design. Once we got the outputs exactly what we are looking for we then go for layout design. This layout design is also done by using the core library which is known as silicon layout. After finishing the layout we will check the overflow of the IC which we will get at the en d of the process. Conclusion: In the project of One Bit Serial Adder we obtained the knowledge about the functionality of adders and developed a fast adder using NAND gate Logic. We even obtain the knowledge about CMOS technology and functionality of IC Gates. As we developed using NAND gate logic implementation the architecture of IC will be much faster and efficient. From the obtained results of Serial adder waveforms and IC design by comparing the theoretical and practical values are verified each other. Such that I can conclude the developed ICs are well functioning in any application era with a delay of 0.5921ns. Finally I concluded that a 1-bit Serial adder is developed in Conventional, NAND gate architecture and Adder/Subtractor architectures IC design and layout of IC design obtained and verified without errors. Functional and Electric Characteristics studied similar to CMOS technology as they developed.

Hate Speeches -- Rights Equality Papers

Hate Speeches What do the words Cracker, Kike, Nigger, Jap, Chinc, Faggot, Queer, Dike and Spic all have in common? They are all derogatory remarks that humans call one another on a daily basis. Why can people use these terms and not have to worry about receiving any punishment or any ridicule? The reason is because of the First Amendment right of free speech. The first amendment gives people the right to basically say anything that comes to mind whether it is something nice or something like a derogatory remark. The first amendment is good and freedom of speech has its advantages like most things, but however, it also has its disadvantages. The disadvantages are that people can say words that are extremely hurtful to someone and nothing will happen to the one saying it. Most people will have a bigger problem with the people who are the victim, for stating that their rights were being violated. The first amendment rights do have certain restrictions on them as of now, such as yo u are able to say what you so choose as long as it does not infringe on any other persons rights. In my opinion the first amendment right should have restrictions or more restrictions than what it has now. Restrictions that deal with the derogatory remarks in public, many think that this will not work, but with the proper guidelines and cooperation I believe that we as a nation can have derogatory remarks not hurt anyone, or be said in public, where they can be heard by everyone not only the person who is the target of the name calling. Many people have opinions on the subject of free speech. Censorship of free speech is something that the random â€Å"Joe Shmo† can argue against because he feels that he will not be ab... ... against the KKK, they will also be removed and the proper punishment, will be served justice. As one can see, the bill does not and will not discriminate against a certain group or groups that are known for having such views and causing such problems in public. Many people say don’t take there free speech away, because of racial slurs and discrimination, but it not taking it away, they have the right to say it anywhere else, but in public. Some same why not just educate them? The reason for the censorship and not educating them is because people are stubborn when it comes to their beliefs and the way they were raised. People will never learn to deal with racial differences, and by trying to educate them we will be wasting money and time and efforts of the nation and the state governments. Education will not work, but censorship of free speech in public will.

Liberalism in Canadian Government Essay -- essays research papers

Liberalism is the best ideology for Canada’s government and is a good combination of both Socialism and Conservatism. Liberalism takes the finer parts from both ideologies to create a better form of government. Canadians now have a choice in which ideology they like better by this compromised form of government. The centre of the spectrum and the equilibrium of government and individual ownership is the definition of Liberalism. A good example of why Liberalism is the number one choice from most Canadians is public and privatized hospitals. Right now, Canada only has public hospitals that are free for everybody in need of medical assistance but require a health care plan. Public hospitals are paid by taxes, just like public education. The only downfall of publicized faculties is that they are normally very crowded, and you cannot always get help as fast. Private hospitals appeal more to people with money. People who are willing to pay the extra couple grand for faster and, some say, of better quality care. Since normally the best doctors would be working in their own pri...

Code of Ethics. Audit – 1

INTRODUCTION: Code of ethics is a very important matter in each and every profession and in accountancy profession it is more vital. The accountancy profession has a contradictory image. On the one hand accountants are seen as pillars of a society, providing reliable information in there working lives and acting as a treasurer for different public authority institutions, NGOs, banks, educational institution or local organizations in their spare of time. Chartered Accountants are also seen as an independent justifier regarding the financial performance and activities of private and public organizations audited by them that enhance the confidence level of different decision makers. The other side of the coin is the image of aggressive tax schemes, financial scandals and money laundering. Code of ethics establishes the fundamental principles of professional ethics for professional accountants and provides a demonstrative guideline for applying those principles. Professional accountants are required to keep remember and apply this Code of ethics to identify threats to compliance with the fundamental principles, to evaluate their significance and, if such threats are other than clearly insignificant to apply safeguards to eliminate them or reduce them to an acceptable level such that compliance with the fundamental principles is not compromised. WHAT ETHICS IS: Normally ethics is set of beliefs and thoughts of a person about what is right and wrong. In other words ethics can be defined as a set of morale principles or values. Ethics, also known as moral philosophy is a branch of philosophy that addresses questions about morality—that is, concepts such as good and evil, right and wrong, virtue and vice, justice, etc. WHY CODE OF ETHICS NEED: The services provided by professional accountants have greater involvement with the public interest. Because it is necessary for governments, shareholders, trading partners, management and any other stakeholders, that the financial and other reports and information provided by accountants are reliable and can be used by others as they go about their daily lives. Accountants work creates major impacts in the national economy through capital market as well as revenue collection for public expenditures (taxes). There is a third party involvement in most of accountants work; therefore professional accountants should maintain independence, integrity, objectivity and compliance with other ethical issues. CODE OF ETHICS FOR PROFESSIONAL ACCOUNTANTS: The International Federation of Accountants (IFAC) issued code of ethics under its own authority, high quality ethical standards and other pronouncements for professional accountants for use around the world. This Code of Ethics establishes ethical requirements for professional accountants. This code consists of: †¢ Fundamental Principles; and †¢ Threats and Safeguards. FUNDAMENTAL PRINCIPLES: A professional accountant is required to comply with the following fundamental principles: †¢ Integrity †¢ Objectivity †¢ Professional competence and due care †¢ Confidentiality †¢ Professional behavior INTEGRITY: A professional accountant should not allow bias, conflict of interest or undue influence of others to override professional or business judgments. The principle of integrity imposes an obligation on all professional accountants to be straightforward and honest in professional and business relationships. Integrity also implies fair dealing and truthfulness. A professional accountant should not be associated with reports, returns, Communications or other information where they believe that the information: a) Contains a materially false or misleading statement; b) Contains statements or information furnished recklessly; or (c) Omits or obscures information required to be included where such omission or obscurity would be misleading. OBJECTIVITY: A professional accountant should not allow bias, conflict of interest or undue influence of others to override professional or business judgments. The principle of objectivity imposes an obligation on all professional accountants not to compromise their professional or business judgment because of bias, conflict of interest or the undue influence of others. A professional accountant may be exposed to situations that may impair objectivity. It is impracticable to define and prescribe all such situations. Relationships that bias or unduly influence the professional judgment of the professional accountant should be avoided. PROFESSIONAL COMPETENCE AND DUE CARE: A professional accountant has a continuing duty to maintain professional knowledge and skill at the level required to ensure that a client or employer receives competent professional service based on current developments in practice, legislation and techniques. A professional accountant should act diligently and in accordance with applicable technical and professional standards when providing professional services. The principle of professional competence and due care imposes the following obligations on professional accountants: (a) To maintain professional knowledge and skill at the level required to ensure that clients or employers receive competent professional service; (b) To act diligently in accordance with applicable technical and professional standards when providing professional services. Competent professional service requires the exercise of sound judgment in applying professional knowledge and skill in the performance of such service. Professional competence may be divided into two separate phases: (a) Attainment of professional competence; and (b) Maintenance of professional competence. The maintenance of professional competence requires a continuing awareness and an understanding of relevant technical professional and business developments. Continuing professional development develops and maintains the capabilities that enable a professional accountant to perform competently within the professional environments. Diligence encompasses the responsibility to act in accordance with the requirements of an assignment, carefully, thoroughly and on a timely basis. A professional accountant should take steps to ensure that those working under the professional accountant’s authority in a professional capacity have appropriate training and supervision. Where appropriate, a professional accountant should make clients, employers or other users of the professional services aware of limitations inherent in the services to avoid the misinterpretation of an expression of opinion as an assertion of facts. CONFIDENTIALITY: A professional accountant should respect the confidentiality of information acquired as a result of professional and business relationships and should not disclose any such information to third parties without proper and specific authority unless there is a legal or professional right or duty to disclose. Confidential information acquired as a result of professional and business relationships should not be used for the personal advantage of the professional accountant or third parties. The principle of confidentiality imposes an obligation on professional accountants to refrain from: (a) Disclosing outside the firm or employing organization confidential information acquired as a result of professional and business relationships without proper and specific authority or unless there is a legal or professional right or duty to disclose; and (b) Using confidential information acquired as a result of professional and business relationships to their personal advantage or the advantage of third parties. A professional accountant should maintain confidentiality even in a social environment. The professional accountant should be alert to the possibility of inadvertent disclosure, particularly in circumstances involving long association with a business associate or a close or immediate family member. A professional accountant should also maintain confidentiality of information disclosed by a prospective client or employer. A professional accountant should also consider the need to maintain confidentiality of information within the firm or employing organization. A professional accountant should take all reasonable steps to ensure that staff under the professional accountant’s control and persons from whom advice and assistance is obtained respect the professional accountant’s duty of confidentiality. The need to comply with the principle of confidentiality continues even after the end of relationships between a professional accountant and a client or employer. When a professional accountant changes employment or acquires a new client, the professional accountant is entitled to use prior experience. The professional accountant should not, however, use or disclose any confidential information either acquired or received as a result of a professional or business relationship. PROFESSIONAL BEHAVIOR: A professional accountant should comply with relevant laws and regulations and should avoid any action that discredits the profession. In marketing and promoting themselves and their work, professional accountants should not bring the profession into disrepute. Professional accountants should be honest and truthful and should not: a) Make exaggerated claims for the services they are able to offer, the qualifications they possess, or experience they have gained; or (b) Make disparaging references or unsubstantiated comparisons to the work of others. THREATS AND SAFEGUARDS: THREATS: Compliance with the fundamental principles may potentially be threatened by a broad range of circumstances. Many threats fall into the following categories: (a) Self-interest threats, which may occur as a resu lt of the financial or other interests of a professional accountant or of an immediate or close family member; b) Self-review threats, which may occur when a previous judgment needs to be re-evaluated by the professional accountant responsible for that judgment; (c) Advocacy threat which may occur when a professional accountant promotes a position or opinion to the point that subsequent objectivity may be compromised; (d) Familiarity threats, which may occur when, because of a close relationship, a professional accountant becomes too sympathetic to the interests of others; and e) Intimidation threats, which may occur when a professional accountant may be deterred from acting objectively by threats, actual or perceived. SAFEGUARDS: According to the code of ethics there are two general categories of safeguards : 1. Safeguards created by the profession, legislation or regulation 2. Safeguards within the work environment. Examples of safeguards created by the profession, legislation or regulation: ? Educational training and experience requirements for entry into the profession. ? Continuing professional development requirements. Corporate governance regulations. ? Professional standards. ? Professional or regulatory monitoring and disciplinary procedures. ? External review by a legally empowered third party of the reports, returns, communication or information produced by a professional accountant. Examples of safeguards in the work environment: ? Involving an additional professional accountant to review the work done or otherwise advise as necessary. ? Consulting an independent third party, such as a committee of independent directors, a professional regulatory body or another professional accountant. Rotating senior personnel. ? Discussing ethical issues with those in charge of client governance. ? Disclosing to those charged with governance the nature of services provided and extent of fees charged. ? Involving another firm to perform or repertory part of the e ngagement. CONCLUSION: The importance of professional ethics is that in order for accountancy services to be meaningful, the public must trust accountants and the trust are built by the knowledge that accountants are bound by a professional code of ethics. If the professions to survive and thrive and if its members are to maintain their position, there has to be a code of conduct so that the public are able to fell that they can trust accountant. A distinguishing mark of the accountancy profession is its acceptance of the responsibility to act in the public interest. Therefore, a professional accountant’s responsibility is not exclusively to satisfy the needs of an individual client or employer. In acting in the public interest a professional accountant should observe and comply with the ethical requirements of this Code.