zzz1. The Physical Layer of the OSI model is responsible for: a) establishing‚ maintaining and terminating connections across the intervening network b) reliable transfer of information across the physical link c) data units are delivered error free‚ in sequence‚ with no losses or duplications d) all of the above e) none of the above 2. An example of an application layer protocol is a) HTTP c) UDP e) None of the above b) HDLC d) TCP 3.Techniques for transmitting a digital signal over an
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Computers and Society Evaluating the Impact of Technology Chris Brooks Department of Computer Science University of San Francisco Evaluating Technological Impact It can be useful to think about the ways in which technology impacts the way we live our lives. Most computer scientists have a pretty positive view of technology. Is that view justified? How do we defend that view to other‚ more skeptical points of view? Department of Computer Science — University of San Francisco – p.1/? Research
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and telecommunications AREAS AND USES OF COMPUTER: * EDUCATION Computers are used in schools for teaching Computers are used for mathematical calculation Students can do their work by using computer * BANK Computers are used in banks for storing information about different account holders. Computers help in keeping a record of the cash. Computers help in giving all kinds of information regarding any account in the bank * ENTERTAINMENT Computers are used for playing games‚ listening to
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General Computer Questions [pic] General Computer Question 1: What is a computer? Answer: A common‚ somewhat simplified‚ definition is that the computer is an electronic device that can be used to process information. Today‚ computers are not only used for calculations‚ but also for creating and manipulating text and pictures. They are used to design bridges and spacecraft‚ to record a company’s sales and to keep track of customers‚ to create a school newspaper‚ or to estimate the cost
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believe that computers are more a hindrance than a help in todays’s world. Others feel that they are such indispensable tools that they would not be able to live or work without them. - In what ways are computers a hindrance - What is your opinion? Nowadays we can see computers increase their popularity; however‚ using computer too much may lead to negative results. Some people believe that computers have more adverse effects than their helps while others comment that computers are necessary
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ACCESS COMPUTER COLLEGE Basic knowledge on Computer System and Digital Electronics (Research Paper for Digital Electronics/Computer System & Org) Jannelle Stephanie S. Chua CSCA22 Engr. Christopher Jay Apalin Computer Science Table of Contents TITLE PAGE I. Title page _________________________________________ 1 II. Table of Content ___________________________________ 2 III. Abstract __________________________________________ 3 – 4 IV. Introduction
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Social Networking Dangers When was the last time you checked Facebook? Have you tweeted anything today? Research has found that 72% of online adults use social networking sites. Think about it. That’s almost three-fourths of all Internet users. Social networking can range from posting photos on Facebook to tweeting a little daily thought on Twitter. Social networks were originally created to stay in touch with people not often seen or to reconnect with old friends. Despite the fact that some
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A computer is a machine that is able to take information (input)‚ do some work on or make changes to the information‚ to make new information (output). Computers have existed for much of human history. Examples of early computers are the astrolabe and the abacus. Modern computers are very different from early computers. They are now very powerful machines that are able to do billions of calculations every second. Most people have used a personal computer in their home or at work. Computers are
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SOCIAL NETWORKING Intro 1. Social networking has had a major influence on society in the 21st century‚ enabling citizens to engage with each other in radically new and different way. Although people have been using the social networking to connect with others since early 1980. It is only in the last decade that social networking has proliferated and it because widespread practice – particularly among young people‚ it has been noted that the older generations are now catching up with the strongest
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Computers in Education By Carla Cooper and Evelia Ramirez December 2006‚ University of California at Berkeley www.consttutioncenter.org “Today‚ education is perhaps the most important function of state and local governments. Compulsory school attendance laws and the great expenditures for education both demonstrate our recognition of the importance of education to our democratic society. It is required in the performance of our most basic public responsibilities‚ even service in the armed
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