Why do Boolean functions play a central role in hardware architectur.pdf

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Why do Boolean functions play a central role in hardware architectures? Describe Composite Gates. Describe Multiplexor’s and Demultiplexor’s? What is the importance of the use of the selection bit and the data bits? Solution In electronics, a multiplexer (or mux) is a device that selects one of several analog or digital input signals and forwards the selected input into a single line. A multiplexer of 2n inputs has n select lines, which are used to select which input line to send to the output.Multiplexers are mainly used to increase the amount of data that can be sent over the network within a certain amount of time and bandwidth. A multiplexer is also called a data selector. Multiplexers can also be used to implement Boolean functions of multiple variables. An electronic multiplexer makes it possible for several signals to share one device or resource, for example one A/D converter or one communication line, instead of having one device per input signal. Conversely, a demultiplexer (or demux) is a device taking a single input signal and selecting one of many data-output-lines, which is connected to the single input. A multiplexer is often used with a complementary demultiplexer on the receiving end. An electronic multiplexer can be considered as a multiple-input, single-output switch, and a demultiplexer as a single-input, multiple-output switch.The schematic symbol for a multiplexer is an isosceles trapezoid with the longer parallel side containing the input pins and the short parallel side containing the output pin.The schematic on the right shows a 2-to-1 multiplexer on the left and an equivalent switch on the right. The wire connects the desired input to the output..

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Amon the following, which has the lowest levels of dissolved iron? a. Atlantic Ocean b. Indian Ocean c. Pacific Ocean d. The temperate regions of all oceans Solution The correct option is Pacific ocean because of the low dust sedimentation and iron is readily soluble in low oxygen regions and the continental margins. It was believed that iron remained in the localized areas but didn\'t contribute to the overall iron content of the ocean. As it is explained by Nielsen, as soon as the iron-rich fluids hit the seawater with high oxygen content, the iron gets dumped out and is not contributed to the overall amount of the dissolved iron..

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A box contains 10 red balls and 40 black balls. Two balls are drawn .pdf

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As late as 1992, the United States was running budget deficits of nearly $300 billion. During the remainder of the 1990\'s, deficits declined and became surpluses. As the new century began, these surpluses again turned into deficits. •Explain the decline in deficits and subsequent surpluses in the late 1990\'s. •Explain the return to deficit spending since the turn of the century. •Consider the causes of the deficits and surpluses and provide your own insight as to whether these surpluses or deficits have a \"positive\" or \"negative\" effect on our economy Solution As the 1990s came to an end, virtually all financial-market observers and politicians rejoiced that budget deficits were gone and that the U.S. had entered a period of fiscal stability. Politicians on both sides of the aisle viewed the new world of budget surpluses as an opportunity to save Social Security, to cut Federal debt, and to lower taxes. Budget deficits or budget surpluses are neither good nor bad, they are fiscal policy options that can stabilize or de-stabilize an economy. The U.S. economy, under Reagan, Bush, and early Clinton, experienced higher not lower rates of economic growth at a time when budget deficits were at record levels and tax rates were on the decline. Over the past 20 years a period of record budget deficits the stock market increased from 950 to over 11,000, providing ample evidence that budget deficits are not necessarily bad for an economy.On the other hand, budget surpluses are not necessarily good. As the budget surpluses began to expand dramatically in late 1999 and into 2000, the stock market appeared to be reversing the record up-trend of the 1980s and \'90s. One possible reason for the reversal: the growing budget surplus was sapping the savings of the private sector. Consumers were able to maintain their spending only through expanding debt to record level. In the late 90s, the confluence of strong economic growth, decelerating federal government spending, and substantial increases in tax rates (revenues) had the unexpected effect of producing enormous budget surpluses. As unexpected budget surpluses burst on the scene in the late 1990s, most mainstream economists weren’t sensitive to the contractionary impact that surpluses can have on the economy. The reason was simple that none of their economic models ever included the forecast of a substantial surplus. Ronald Reagan’s was the vice president of the USA for eight years and knew firsthand how difficult it was to bring the federal budget deficit down from 6 percent of GDP in 1983 to 2.8 percent in Reagan’s last budget. Bush knew that the many budget deals of the 1980s had been hard fought and always involved higher taxes as part of the deficit reduction, Reagan signed into law 11 major tax increases that raised taxes by $133 billion in 1988 or 2.7 percent of GDP.Bush administration economists believed that an easier monetary policy was the key to stimulating growth. But Federal Reserve Board.

As late as 1992, the United States was running budget deficits of ne.pdf

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A bacteriophage population is introduced to a bacterial colony that is in stationary phase with rapidly depleting nutrients. Appraise the following scenarios and select which one would favor long-term survival of the bacteriophage. A. The bacteriophages infect the remaining viable cells and integrate their genetic material into the host cell genome thereby preserving their genome. B. The bacteriophages do not infect the bacterial cells since they are dying; they remain inert outside of the cells. C. The bacteriophages infect the bacterial cells and go through all stages of development apart from release, thus keeping the progeny phage from entering an inhospitable environment. Solution Answer : C. The bacteriophages infect the bacterial cells and go through all stages of development apart from release, thus keeping the progeny phage from entering an inhospitable environment..

A bacteriophage population is introduced to a bacterial colony that .pdf

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Xavier and Yolanda both have classes that end at noon and they agree to meet every day after class. They arrive at the coffee shop independently. Xavier\'s arrival time is X and Yolanda\'s arrival time is Y, where X and Y are measured in minutes after noon. The individual density functions are given. (Xavier arrives sometime after noon and is more likely to arrive promptly than late. Yolanda always arrives by 12:10 PM and is more likely to arrive late than promptly.) After Yolanda arrives, she\'ll wait for up to 20 minutes for Xavier, but he won\'t wait for her. Find the probability that they meet. (Round your answer to three decimal places.) f1(x) = {e^-x if x gt o and o if x Solution.

Xavier and Yolanda both have classes that end at noon and they agree .pdf

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1. Low platelet count is a recessively inherited trait. Reevaluation of the genetic screen indicates that Nikoleta is homozygous dominant normal for a trait that causes low platelet count and her husband is homozygous recessive. If the F1 offspring has normal platelets and beta-thalassemia (15pts). a. What are the parental gametes? (2pts) b. Based on the F1 progeny phenotype given and the parental gametes, write the two possible genotypes. (2 pts) c. What is the gamete frequency if the two genotypes in (b) were crossed with each other? (4pts)? (4pts) d. What is the phenotype frequency for the cross in (c)? SHOW ALL WORK. (7 pts) Solution Both the conditions are recessive. Nikoleta: Homozygous dominant for trait that causes low platelet, and homozygous recessive for beta thalessemia. Genotype is LLbb Husband: Homozygous recessive for low platelet count, and heterozygous dominant for beta- thalessemia. Genotype is llBb The possible gametes produced by these parents: Nikoleta: Lb Husband: lB, lb Possible genotype of the F1 offspring: LlBb or Llbb Since the F1 offspring are given to be affected with beta-talassemai, the F1 offspring genotype should be Llbb. Possible gametes are LB, lb, lB, and lb (if genotype is LlBb) / Lb, lb (if genotype is Llbb). Therefore, the frequency of the gametes is LB = 1, lb = 2, lB =1, and Lb = 2 The following is the phenotype frequency: LLBb, LlBb, LlBb (Normal platelet count and no beta thallasemia) = 3 LLbb, Llbb, Llbb (Normal platelet count and beta thallasemia) = 3 llBb (Low platelet count and no beta thallasemia) = 1 llbb (Low platelet count and beta thallasemia) = 1 Thus phenotypic ratio stands as: Normal platelet count and no beta thallasemia : Normal platelet count and beta thallasemia : Low platelet count and no beta thallasemia : Low platelet count and beta thallasemia = 3 : 3 : 1 : 1.

1. Low platelet count is a recessively inherited trait. Reevaluation.pdf

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