...Chapter 6 - Exercises 1. [10 points] What is memory mapped I/O? An I/O scheme in which portions of address space are assigned to I/O devices, and reads and writes to those addresses are interpreted as commands to the I/O device 2. [10 points] Why is DMA an improvement over CPU programmed I/O? When CPU programmed I/O is used the CPU is usually fully occupied for the entire duration of the read or write operation and is unavailable to perform other work. With DMA the CPU initiates the transfer, does other operations while the transfer is in progress, and receives an interrupt form the DMA controller when the operation is complete. This frees up the CPU for other tasks. 3. [10 points] When would DMA transfer be a poor choice? When the amount of data transferred between memory and the I\O device is small. In this case the work to set it up would be more than the benefits of having it. 4. [15 points] Mention two advantages and disadvantages for using a single bus as a shared communication link between memory, processor and I/O devices. Advantages: versatility and low cost Disadvantages: communication bottleneck 5. [15 points] What is the average time to read or write a 512-byte sector for a typical disk rotating at 7200 RPM? The advertised average seek time is 8ms, the transfer rate is 20MB/sec, and the controller overhead is 2ms. Assume that the disk is idle so that there is no waiting time. -8 + (.5*60*1000/7200) + (512/20*2^20) * 1000...
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...The Big Book of Huddle Energizers Ideas to enliven your huddle Contributed by employees of Citibank Singapore Table of Contents Service Value # 1 – Make Each Interaction Personal ................................................. 6 Energizer: Hebrew Numerology ................................................................................... 6 Energizer: Brain Teaser ............................................................................................... 9 Energizer: Human Treasure Hunt............................................................................... 10 Energizer: Secret Hat Trick ........................................................................................ 11 Energizer: Accentuate the Positive............................................................................. 11 Energizer: Name Game.............................................................................................. 11 Energizer: Heart to Heart ........................................................................................... 11 Energizer: Guess my Body Language ........................................................................ 11 Energizer: How to Say Hello in Different Languages ................................................. 12 Energizer: Good Morning Game ................................................................................ 12 Service Value # 2 – Maintain A Professional Image ...................................................
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...later. The study was conducted using mostly white female participants who were considered to be sedentary. They were given a grading scale by which to quantitatively express their personal sensation as well as their level of perceived exertion. The participants were placed on a treadmill and worked until their heart rate was 65% of the target rate for each participant according to age. They were then surveyed 6 and 12 months later. The study found that participant who had a positive response to the original bout of physical activity were more likely to be physically active 6 and 12 months later. The authors acknowledged many limitations of this study such as small sample size and the use of age predicted heart rate expectations. The use of a survey may lead to sketchy results also. The results and the discussion were consistent due to the fact that the authors made no wide spread claims resulting from the data acquired during this study. This study implies to me that if physical activity was more fun and less suffering then people would be more likely to adhere to exercise programs. If I were to continue research based on this study I would interview the participant in hopes of discovering further variables between those who continued to be active and those who did...
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...From: Systems Administrator To: Manager Subj: Support Prioritization First, let me thank you for notifying me of any problems and/or complaints. This way we may implement a proper plan of action and I agree that a ticket escalation policy is the way to go to achieve this. I will start drafting a policy for how support requests will be prioritized in the immediate future according to what you have requested. Each end-user or department head may call me, email me or both stating what department they are with and the technical issue that is occurring and at what workstation it is occurring. Each technical issue will receive a work order number, each work order will contain all information that they have provided and the date and time received. I will assign each work order a level of urgency as they arrive 1-4, 1 being the most urgent and 4 being the least. These will be prioritized by department as requested as follows 1: Customer Service 2: Sales 3: Accounting 4: Marketing. Each department head will receive a copy of said work order as well. The new policy should be a great way to manage both business and end-user expectations. I believe we can better manage these requirements by not only each department but each employee receiving a copy of the policy as well once it is finalized. Thank you again and please let me know if there is anything you would like me to add to the...
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...You are diary holder number 1 "The random diary" -You will know the diary users that will die before they get eliminated. You are diary holder number 2 "The Yukiteru diary" -You can save diary holder number 1 if he was being eliminated if you choose to. You are diary holder number 3 "The murder diary" -You get to eliminate one diary holder if you choose to. You are diary holder number 4 "The criminal investigation diary" -you will know the 3 diary users who will be eliminating other people. You are diary holder number 5 "The Hyper Vision Diary" -You won't have to answer one of the 3 questions given. You can only use this diary once. You are diary holder number 6 "The Clairvoyance Diary" -You can know about one diary user and the diary's ability. You are diary holder number 7 "The exchange Diary" -You get to choose from number 1-12 (7 is an exception) and you will get the diary's ability (Number of diary you choose) You are diary holder number 8 "The blog diary" -You can bring a dead user back to life. You are diary holder number 9 "The escape Diary" -you can escape from being eliminated. You are diary holder number 10 "The breeder diary" -I will send you the questions first before I post them. You can only use your diary once in this game. You are diary holder number 11 "The watcher" -I will tell you the name of the diary holders and their diary's ability. You are diary holder number 12 "The Justice Diary" -You can be...
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...Percentage | Total | Percentage | 65 | 81% | 15 | 19% | 80 | 100% | Table 4 shows that the 81% agreed that they have friends they don’t know personally in facebook while the remaining 19% of the 80 respondents disagreed. Displayed in table 5 is result of the survey conducted for question number 3. Table 5 Q4: Do you spend more than an hour in Facebook? Yes | Percentage | No | Percentage | Total | Percentage | 49 | 61% | 31 | 39% | 80 | 100% | Table 5 shows that 61% agreed that they spend more than an hour using facebook while the 39% of the 80 respondents disagreed. Displayed in table 6 is result of the survey conducted for question number 5. Table 6 Q5: Do you have a Facebook account? Yes | Percentage | No | Percentage | Total | Percentage | 80 | 100% | 0 | 0% | 80 | 100% | Table 6 shows that all of them have a Facebook account. 100% Table 6 shows that 100% of the 80 respondents have their own facebook account. Displayed in table 7 is result of the survey conducted for question number 5. Table 7 Q6:Do you depend things on Facebook? Yes | Percentage | No | Percentage | Total | Percentage | 24 | 30% | 56 | 70% | 80 | 100% | Table 7 shows that 30% agreed that they depend things on facebook while 70% of the 80 respondents disagreed. Displayed...
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...Customer number 1 Interested in a Camera Photo • What is your age? 38 • What is your gender? Male • What is your household size? 2 people • What is your household income? $40,000.00 • What is your profession? Handling heavy machinery • What is your education level? High School Diploma Psychographic Questions • What did you find interesting about this product? It’s capability of taking photos • What are your thoughts about the product? It has a great resolution Buying Pattern Questions • Do you ever purchase electronics? YES • Where do you go when you are looking for electronics? On Web • How often do you purchase electronics? Once in a while • How long does it take you to make a buying decision? A few days • What is your typical budget for electronics? $200-$500 • How far would you travel to make the purchase? Around Windsor Benefits Questions • What features do you look for when you purchase electronics? Its quality • What specific benefits do you look for in electronics? Reliability • What motivates you to purchase electronics? Universal Trend • What needs are you trying to meet when you purchase electronics? Enhancing lifestyle • How do you hope electronics will make your life better? Time saving Customer Number 2 Interested in a gaming console • What is your age? 22 • What is your gender? Male • What is your household size? 4 people • What is your household income? $30,000.00 • What is your profession? Student • What is your education...
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...kind of idea about drugs being used in my area by teenagers. DERAILMENT TIES UP PELHAM BAY SUBWAY. (1947, Sep 04). New York Times (1923-Current File). Retrieved from http://ez.lib.jjay.cuny.edu/docview/108091371?accountid=11724 The main point of this article is to show how responsibility is a big deal from the MTA employees and its very dependable amongst them to serve the public as we please because everyday there’s work to get to whether its public transportation or car and I know there’s a million or billion times more of people taking means of transportation to work than there is driving. This related to my neighborhood because once again its part of the Pelham Bay region and sometimes I take public transportation in this case the 6 train and that’s the train that was effected in this case and that’s a huge...
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...How to Motivate Employees and Improve Work Ethics by Lisa Bigelow, Demand Media Don't point out mistakes that are mistakes in your eyes only. Related Articles * Can You Motivate Employees by Reducing Supervision at Work? * Decisions Employees Can Make to Help Motivate Themselves * Advantages of Training Employees About Work Ethics * How to Motivate Your Employees' Team Building * A List of Good Work Ethics by Employees * Different Types of Organizational Structure Motivating employees to work more productively and to be happier while doing it is a stiff challenge for even the most seasoned manager. Human behavior specialists indicate that the best way to avoid motivation and laziness problems is to assess potential employees carefully by way of personality testing. But what do you do when the hiring's done and you need the employees you have to perform more productively? Try proven, specific techniques designed to keep even your most cynical employees satisfied and productive. The first step? Back off. Nobody likes a micromanager. Ads by Google Options Trading Lessons With just these 3 Free reports you could be trading by day's end. wealthdaily.com/Options_Trading Step 1 Set specific goals, and trust your employees to reach them. According to Forbes, nothing makes enthusiasm vanish faster than a micromanager who doesn't trust her employees to do their work properly. Force yourself to let go by setting a clear and achievable goal; for example...
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...own language. It's called Pennsylvania Dutch, and is called such due to the large number of Amish people living in the namesake state. The tongue is a combination of Dutch, English, and German. * Number 9. Riding in cars is fine. Owning, driving, or even having one within the confines of the community is what's forbidden. * Number 8. School attendance past the 8th grade is rare. Based on the 1972 Supreme Court ruling in Wisconsin vs. Yoder, the Amish are given an exception to regular US truancy laws on the basis of religious freedom. * Number 7. The Amish are not a cult. Their religion is of the Christian variety. One unique aspect is that they practice adult baptism. They also don't engage in evangelism. * Number 6. Beard growing doesn't start until after marriage. Marriage doesn't happen until the person's been baptized. * Number 5. The Amish don't go to church. Rather, they have community Sunday services in their own homes. On average, each family hosts once a year. Bigger communities get broken down into smaller, more manageable districts. * Number 4. Amish brides make their own dresses. That it be blue is required by some groups, but others leave the color option open. After the wedding day, the woman wears the dress for Sunday services and is eventually buried in it. * Number 3. Some technology gets the green light. The decision about what can enter the community is based upon how good it will be for it. Regardless of what's...
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...Exercises & Problems Week 6 Complete Exercises E11-15, E12-1, & E12-2 and Problem 11-6 Exercise E11-15 Before After After Action Dividend Stock Split Stockholders’ equity Paid in capital Common stock, $10 par 600,000 630,000 600,000 Paid in capital in excess par value 0 12,000 0 Total paid in capital 600,000 642,000 600,000 Return earnings 900,000 858,000 900,000 Total stock holders’ equity 1,500,000 1,500,000 1,500,000 Outstanding shares 60,000 66,000 120,000 Exercise E12-1 1. Companies purchase investments in debt or stock securities because they have excess cash, earnings from investment income, and strategic reasons. 2. A company will have excess cash it does not need for operations because of seasonal fluctuates it sales. The company will use excess funds for a bigger return than holding in the bank. 3. A typical investment when investing cash for a short period of time would be a short term government security. 4. A typical investment when investing in cash to generate earnings would be investing in debt. 5. A company would invest in securities that provide zero cash flow for strategic reasons such as influence over customers or make presence known by a related company in the industry. 6. A typical stock investment when investing cash for strategic reasons would be in a related or no related company. This will allow expansion...
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...ACC211 Exercise chapter 6 Click Link Below To Buy: http://hwcampus.com/shop/acc211-exercise-chapter-6/ Brief Exercise 6-1 Chris Spear invested $17,840 today in a fund that earns 8% compounded annually. (Use the tables below.) Brief Exercise 6-2 Your answer is correct. Tony Bautista needs $23,990 in 3 years. (Use the tables below.) Solution Brief Exercise 6-2 Brief Exercise 6-8 Your answer is correct. John Fillmore’s lifelong dream is to own his own fishing boat to use in his retirement. John has recently come into an inheritance of $417,900. He estimates that the boat he wants will cost $331,800 when he retires in 4 years. (Use the tables below.) Brief Exercise 6-8 With quarterly compounding, there will be 16 quarterly compounding periods, at 1/4 the interest rate: Brief Exercise 6-9 Your answer is correct. Brief Exercise 6-11 Your answer is correct. Leon Tyler’s VISA balance is $647.01. He may pay it off in 12 equal end-of-month payments of $65 each What interest rate is Leon paying? Exercise 6-1 Your answer is correct. For each of the following cases, indicate (a) to what rate columns, and (b) to what number of periods you would refer in looking up the interest factor. Exercise 6-3 Using the appropriate interest table, answer each of the following questions. (Each case is independent of the others.) ...
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...BYP1-6 Exercise ACC/349 Jan 26, 2015 BYP1-6 Exercise A. Who are the stakeholders in this situation? The stakeholders would include the President and Vice President of Robbin Industries, Wayne Terrago, Robbin Industries controller as well as shareholders, and creditors, specifically ones involved in the bond offering. Other stakeholders would be employees of the company-for if this advertising expense is reported as inventory, this can be classified as unethical by the SOX Act and is not acceptable in accordance with the GAAP to where the company can be in violation and have hefty fines which would affect the jobs of the present employees of the company. B. What are the ethical issues involved in this situation? One issue is that the excessive advertising is being reported as inventory, or at least the President of the company and some of the board members are wanting it to be. In accordance with the SOX Act, managers must be able to verify all internal controls that ensure all financial reporting’s are accurate. If this is reported per the President’s recommendation then this is unethical. Another issue is where others wanted the extensive advertising costs be classified as prepaid advertising and a current asset. This is not acceptable per GAAP and the company show that they have more assets than they have to make them look better on their financial statements for creditors and shareholders C. What would you do if you were Wayne Terrago? This advertising...
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...Exercise 6: Cardiovascular Physiology: Activity 1: Investigating the Refractory Period of Cardiac Muscle Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The cardiac muscle is capable of which of the following? You correctly answered: c. autorhythmicity 2. Phase 2 of the cardiac action potential, when the calcium channels remain open and potassium channels are closed, is called the You correctly answered: a. plateau phase. 3. Which of the following is true of the cardiac action potential? You correctly answered: b. The cardiac action potential is longer than the skeletal muscle action potential. 4. The main anatomical difference between the frog heart and the human heart is that the frog heart has You correctly answered: c. a single, fused ventricle. 06/04/13 page 1 Experiment Results Predict Question: Predict Question 1: When you increase the frequency of the stimulation, what do you think will happen to the amplitude (height) of the ventricular systole wave? Your answer : a. The amplitude will increase. Predict Question 2: If you deliver multiple stimuli (20 stimuli per second) to the heart, what do you think will happen? Your answer : d. neither wave summation nor tetanus Stop & Think Questions: 1. Watch the contractile activity from the frog heart on the oscilloscope. Enter the number of ventricular contractions per minute (from the heart rate display) in the field below and then click Submit Data to record your answer...
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...Cubes Introduction I was given a brief to investigate the number of faces on a cube, which measured 20 small cubes by 20 small cubes by 20 small cubes (20 x 20 x 20). To do this, I had to imagine that there was a very large cube, which had had its outer surface painted red. When it was dry, the large cube was cut up into the smaller cubes, all 8000 of them. From there, I had to answer the question, 'How many of the small cubes will have no red faces, one red face, two red faces, and three faces? From this, I hope to find a formula to work out the number of different faces on a cube sized 'n x n x n'. Solving the Problem To solve this problem, I built different sized cubes: 2 x 2 x 2; 3 x 3 x 3; 4 x 4 x 4; 5 x 5 x 5; 6 x 6 x 6; 7 x 7 x 7; 8 x 8 x 8; 9 x 9 x 9, using multi-links. I started by building a cube sized '2 x 2 x 2'. As I looked at the cube, I noticed that all of the corners had three faces. I then went onto a '3 x 3 x 3' cube. As I observed the cube, I saw that the corners all had three faces, the edges had two, and the faces had one. I looked into this matter to see if this was true. As I went further into the investigation, I found this was true. This made it much easier for me to count the cubes, and be more systematic. Now I could carry on building the cubes, and be more confident about not missing any out. Whilst building the cubes, I also drew them and decided to color code the different faces (Red = Three faces, Green = Two faces...
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