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DMA Should access to main memory be given higher priority than processor access
to main memory? What is the purpose and technique of DMA logic?
Direct memory access or DMA is a method of transferring data from the computer's
RAM to another part of the computer without processing it through the CPU. I believe the DMA
access to main memory should be given higher priority because it allows the CPU to run more
efficiently. For instance say a sound card needs access data stored on the computer's RAM, the but
since sound card can process the data itself it can use DMA to bypass the CPU. The purpose
of DMA is to enable certain hardware subsystems within the computer access to the systems
memory independently outside of the CPU. When transferring data to devices DMA becomes
very useful because it allows the CPU to perform other functions while the transfer is in
progress. In order for devices to use DMA devices must support direct memory access and they
must also be assigned a DMA channel.

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UCLA - PHYSICS 4B - 318017201

3.87E+01 3.87E+01 3.87E+01 3.87E+01 3.88E+01 3.88E+01 3.88E+01 3.88E+01 3.88E+01 3.88E+01 3.88E+01 3.88E+01 3.88E+01 3.88E+01 3.89E+01 3.89E+01 3.89E+01 3.89E+01 3.89E+01 3.89E+01 3.89E+01 3.89E+01 3.89E+01 3.89E+01 3.90E+01 3.90E+01 3.90E+01 3.90E+0

John Carroll - FY - SEM

the movie Hairspray. Racismwill never go away, but it seems to have improved since the sixties. African Americansand Caucasian have equal rights today in the United States.Similarly, sexism againstwomen still exists, but women of today have sh

Universidad Nacional de Colombia - BA - finance101

Chapter 10Forecasting1Removing the seasonal component from a time-series can be accomplished bymultiplying each value by its appropriate seasonal factor.F2The last-value forecasting method is most useful when conditions are stable overtime.F3A

UT Dallas - FINANCE - 6306

val.Interval: a set of values within which an observation falls. Eachobservation falls into only one interval. The total number of intervalscovers all the values represented in the data.Absolute frequency: the actual number of observations in a g

University of Phoenix - MAT - 116

How would you rank the principles of concurrency? Explain the design issues forwhich the concept of concurrency is relevant.The basic principle of concurrency is to allow multiple applications to share resources insuch a way that applications appear to

University of Phoenix - MAT - 116

What are the differences and similarities between Windows Server OS and thedesktop OS version?There are many similarities between the Windows Server OS and the Windows OSdesktop version. In 2009, they shipped Windows 7 and Windows Server 2008 R2. Despi

University of Phoenix - MAT - 116

What experiences have you had with virtualization in the past? What are thebenefits of using virtualization? How is it achieved? What effects would implementingvirtualization have on an organization?I have had a few experiences with virtualization in t

University of Phoenix - MAT - 116

Describe the types of malware and the potential impact they can have on a system.Explain the countermeasures to various types of malware.Malicious software or malware is something that any person using a computer will comeacross at some point in their

University of Phoenix - MAT - 116

What are the differences between an interrupt and a trap? Provide an example ofeach. What is their importance?A key difference between interrupt any trap is that interrupt is initiated by hardware and atrap is initiated by software. An interrupt is gen

University of Phoenix - MAT - 116

Consider the past couple days you have worked on the computer. What diskscheduling policies and algorithms were used?After considering the past few days I have worked on my computer performing varioustasks and then reading chapter 11 of I/O management

University of Phoenix - MAT - 116

What are some of the key characteristics of an embedded OS? Discuss why they areimportant. Describe some examples of markets where embedded systems are used.A key characteristic of an embedded operating system would be something that wasdesigned to do

University of Phoenix - MAT - 116

What are the advantages and disadvantages of the use of mainframes? In what typeof organizations would they be most likely to be implemented?Mainframe could be described as a personal computer on steroids because a mainframe isjust a scaled up version

University of Phoenix - MAT - 116

What are the multiple aspects of a system that fault tolerance should address?What are some of the methods used to achieve fault tolerance? How would you make achoice between them?Fault tolerance is what enables a computer system to continue operating

University of Phoenix - MAT - 116

IT/220Week 2DQ 1E-mail has become a part of our daily lives. Discuss your current use of e-mail andwhat you perceive as the advantages and disadvantages of e-mail communication. Then,imagine that the e-mail system in a major company went down. How wo

University of Phoenix - MAT - 116

IT/220Week 2DQ 2What are the advantages of networked computers? What are the disadvantages?Explain similar characteristics between the Internet and a group of networked computers.One of the key benefits of networking computers and other devices are l

University of Phoenix - MAT - 116

1ExerciseE-mail Functionality and UseUniversity of Phoenix2E-mail is a communication tool that most people are familiar with, but the same peoplemight not be familiar with all the definitions. Here is a list of sorts of e-mail terms anddefinitions

University of Phoenix - MAT - 116

MAT/116Week 1DQ 1Explain a real-world problem that you used math to solve. What mathematicalexpressions did you use in your problem solving? Define your variables and explain yourexpression.A real world problem for me that I can use math to solve wo

University of Phoenix - MAT - 116

MAT/116Week 1DQ 2Why is it important to follow the order of operations? What are some possibleoutcomes when the order of operations is ignored? If you invented a new notation wherethe order of operations was made clear, what would you do to make it c

University of Phoenix - MAT - 116

MAT/116Week 2DQ 1If the cost of a cell phone has decreased 400% during the past 10 years, does thatcorrespond to four price reductions? Explain your answer as though you were talking tosomeone who has never taken algebra.It would be wrong for a pers

University of Phoenix - MAT - 116

MAT/116Week 3DQ 1Can a linear equation and a linear inequality be solved in the same way? Explainwhy. What makes them different?I would have to say yes, but with the following two rules to remember. If you multiply ordivide both sides by a negative

University of Phoenix - MAT - 116

MAT/116Week 3DQ 2How do you write a system of linear equations in two variables? You can simplygive a word problem and writing the two linear equations with two unknowns that can bewritten from the data.An example of a linear equation could be a tru

University of Phoenix - MAT - 116

MAT/116Week 4DQ 1What is the difference between a scatter plot and a line graph? Provide an exampleof each. Does one seem better than the other? In what ways is it better?I think that scatter plots and line graphs are similar in that they both use an

University of Phoenix - MAT - 116

MAT/116Week 4DQ 2If a line has no y-intercept, what can you say about the line? What if a line has no xintercept? Tell us about a real-life situation where a graph would have no x- intercept or agraph that has no y-intercept.If a line has no y-interc

University of Phoenix - MAT - 116

MAT/116Week 5DQ 1Imagine that a line on a Cartesian graph is approximately the distance y in feet aperson walks in x hours. What does the slope of this line represent? How is this graphuseful?If y is the distanced traveled in x amount of hours then

University of Phoenix - MAT - 116

MAT/116Week 5DQ 2What are the differences among expressions, equations, and functions? Provideexamples of each.The key difference between expressions and equations is what each represents. Anexpression shows a math relationship. An example of an exp

University of Phoenix - MAT - 116

MAT/116Week 6DQ 1How do you write a system of linear equations in two variables? You can simplygive a word problem and writing the two linear equations with two unknowns that can bewritten from the data.An example of a linear equation could be a tru

University of Phoenix - MAT - 116

MAT/116Week 6DQ 2Make sure that you tell the method (graphing, substitution, or elimination) that youused to solve the system.To solve the following simultaneous equations I am using the elimination method:2x + 3y = 154x 3y =3I would first label t

University of Phoenix - MAT - 116

MAT/116Week 7DQ 1How many solutions can systems of linear inequalities have? Do solutions to systemsof linear inequalities need to satisfy both inequalities?The answer to the first part of the question is three. The first example of a linear equation

University of Phoenix - MAT - 116

MAT/116Week 7DQ 2What is the solution to this system of equations?x = 4y + 1x = 4y - 1Please show your work and tell what method that you used to solve the system.Well first off x=4y+1 and x=4y-1 do not have a solution, but both equations have a so

University of Phoenix - MAT - 116

MAT/116Week 8DQ 1Using the readings discussed in this course, provide one real-world application ofthe information learned that has been the most valuable to you. Why has it been valuable?This course has been valuable to me in many ways and will cont

University of Phoenix - MAT - 116

MAT/116Week 8DQ 2How do you think you will use the information you learned in this course in thefuture? Which concepts will be most important to you? Which will be least important?Explain your answers.I feel that the concepts learned in this class w

University of Phoenix - MAT - 116

MAT/116Week 9DQ 1If your son or daughter asked you why they needed to learn math in school, whatwould you tell them?I do not have any kids, but if I did I would tell them math is a part of life. I would explainthat we all use math in one way or anot

University of Phoenix - MAT - 116

MAT/116Week 9DQ 2Provide one real-world example of when graphing could be useful. Do you think youwould ever use graphing in your life to solve problems? Explain why or why not.There countless examples of when graphing could be useful. The first thin

University of Phoenix - MAT - 116

MAT/116Week 2DQ 2What are the four steps for solving an equation? Should any other factors beaccounted for when solving an equation?The first thing is to combine like terms using the distributive property to clear anyparentheses on each side of the

University of Phoenix - MAT - 117

MAT 117Week 1DQ 2Imagine youre younger relativeof middle school agewas taking an algebracourse and asked for your help. How would you teach the multiplication of polynomials toher?The first thing I would explain to her is the importance of learning

University of Phoenix - MAT - 117

MAT 117Week 1DQ 1What four steps should be used in evaluating expressions? Can these steps beskipped or rearranged?The four steps are as follows: parentheses, exponents, multiplication/division, andaddition/subtraction. This order cannot be skipped

University of Phoenix - MAT - 117

MAT 117Week 2DQ 1What is the greatest common factor? How do you know when you have found thegreatest one?The greatest common factor (GCF) is the largest number that can be divided into thenumber and not result in a fraction. Here are a couple exampl

University of Phoenix - MAT - 117

MAT 117Week 2DQ 2Explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c.Is there more than one way to factor this? Show your answer using both words andmathematical notation.When factoring a trinomial the first thing a pe

University of Phoenix - MAT - 117

MAT 117Week 3DQ 1How do you factor the difference of two squares? How do you factor the perfectsquare trinomial? How do you factor the sum and difference of two cubes? Which of thesethree makes the most sense to you?An algebraic term is a perfect sq

University of Phoenix - MAT - 117

MAT 117Week 3DQ 2Which of these three makes the most sense to you? How do you factor the sum anddifference of two cubes?The standard forms for perfect square trinomials. (a + b)^2 = a^2 + 2ab + b^2 and (a b)^2 = a^2 - 2ab + b^2. A trinomial expressio

University of Phoenix - MAT - 117

MAT 117Week 5DQ 1In your own words, what are radical expressions? What is the process we followwhen adding, subtracting, multiplying, and dividing rational expressions? In your answer,demonstrate the process for each one with your own example.Radica

University of Phoenix - MAT - 117

MAT 117Week 5DQ 2What is the index of a radical? When working with radicals, can the radicand benegative when the index is odd? Can it be negative when the index is even?Since it is possible to raise a number to an odd power and get a negative result

University of Phoenix - MAT - 117

MAT 117Week 6DQ 1What is a function? What would make an expression not be a function?A function is an ordered pair where the x value corresponds with one y value. In theordered pair (x, y), the object x is called the first entry, and the object y the

University of Phoenix - MAT - 117

MAT 117Week 6DQ 2What is the domain and range of a function? Give an example of a function and listits domain and range.The rule when factoring the difference of two perfect cubes is the difference of twoperfect cubes equals the difference of their

University of Phoenix - MAT - 117

MAT 117Week 7DQ 1Quadratic equations, which are expressed in the form of ax2 + bx + c = 0, where adoes not equal 0, may have how many solutions? Explain why.For this quadrant equation there are in infinite number of solutions. The only time theprobl

University of Phoenix - MAT - 117

MAT 117Week 7DQ 2What is the quadratic formula? What is it used for? Provide a useful example, notfound in the text.Well in a nutshell on quadratic formula is a formula to solve a quadratic equation. Peoplelike to use the quadratic formula because s

University of Phoenix - MAT - 117

MAT 117Week 8DQ 1Which of the four operations on functions do you think is the easiest to perform?What is the most difficult? Explain why.A rational expression is simply a fraction whose numerator and/or denominator arepolynomials. Its name is deriv

University of Phoenix - MAT - 117

MAT 117Week 8DQ 2How can you tell if two functions are inverses of each other?Since it is possible to raise a number to an odd power and get a negative result, whichmeans it is possible to apply a radical with an odd index to a negative number. Yes i

University of Phoenix - MAT - 117

MAT 117Week 9Capstone DQ 1What one concept learned in this course was the easiest for you to grasp? Why doyou think it was easy for you? Which was the hardest? What would have made that hardto-learn concept easier to learn?There were a few concepts t

University of Phoenix - MAT - 117

MAT 117Week 9Capstone DQ 2If your neighbor asked you to explain what you learned in this course, what wouldyou tell her?If my neighbor asked me to explain what I learned in this course I would tell them that Ilearned basic algebra. I would go into d

University of Phoenix - US - 101

US 101Week 1DQ 1Post a 150- to 300-word response to the following discussion question by clicking on Reply:What does communication style mean to you? How does your communication stylechange with friends, family, classmates, and instructors?Communica

University of Phoenix - US - 101

US 101Week 1DQ 2Post a 150- to 300-word response to the following discussion question by clicking on Reply:Why do you think it is important to differentiate between academic and casualcommunication?I think it is important to differentiate between th

University of Phoenix - US - 101

US 101Week 1DQ 3Post a 150- to 300-word response to the following discussion question by clickingon Reply:How do you think the mode of communicationwritten, verbal, or electronicinfluences the interpretation of a message?The three different types o

University of Phoenix - US - 101

US 101Week 1DQ 4Post a 150- to 300-word response to the following discussion question by clickingon Reply:What personal, professional, or academic obstacles must you overcome to besuccessful in school? What are some ways you might work around these

University of Phoenix - US - 101

US 101Week 1DQ 5Post a 150- to 300-word response to the following discussion question by clickingon Reply:You have been introduced to assets available in the University Library, the Centerfor Writing Excellence, and the Center for Mathematics Excell

University of Phoenix - US - 101

US 101INTRODUCTION TO UNIVERSITY STUDIESWeek 2Discussion Questions 1 to 5Week 2 DQ 1How does your sense of responsibility influence your work and success?How responsible are you for achieving your goals?Your sense of responsibility can influence yo

University of Phoenix - US - 101

US/101Week 3Appendix ECollaboration WorksheetWrite a 100- to 150-word response to each of the following questions:What are the advantages of having diversity in a collaborative learningenvironment?The advantage of having diversity in a collaborativ

University of Phoenix - US - 101

US 101Week 3Discussion Questions 1 to 5Week 3 DQ 1What does collaboration mean to you? How might collaboration foster learning?To meet collaboration means to work together with the group on a certain project.Collaboration can also mean to learn toge

University of Phoenix - US - 101

Appendix FUS/101 Version 51US/101Week 4Appendix FReading Strategies WorksheetIdentify two reading goals, one short-term and one long-term.Long-term reading goal: Vocabulary buildingShort-term reading goal: mapping my reading or use better reading

University of Phoenix - US - 101

US 101Week 4Discussion Questions 1 to 5Week 4 DQ 1How do your surroundings affect your reading comprehension? How might youminimize distractions while you are reading for your class assignments?Your surroundings affect your reading comprehension in

University of Phoenix - US - 101

Appendix GUS/101 Version 51US/101Week 5Appendix GEthical Actions WorksheetWrite a 100- to 150-word response to each of the following questions:Was there anything in either the University Of Phoenix Student Code OfConduct or the Student Code of Ac