Computers – An Introduction A computer is defined as an electronic device that accepts input‚ processes it as per the given instructions and produces meaningful output. The term computer is used to describe a device which is combination of electronic and electromechanical devices. It is derived from the word “Compute” which means Calculation. “Charles Babbage” is known as the father of the computer. Data and Information Data refers to raw facts that are gathered and fed to the computer. A computer
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to many important inventions. One of them is the computer. About a decade back‚ a computer was seen as a wonder machine. A few years later‚ this wonderful machine came closer to us as the Personal Computer (PC) entered the household scene. The computer today plays a significant role in our everybody’s life. Computers are used practically everywhere. The use of computer in our country in the past two decades has taken a big jump. Today computers do much more than simply compute‚ super market scanners
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How Do You Know When the Price Is Right? Robert J. Dolan‚ HBR Pricing is managers’ biggest marketing headache. It’s where they feel the most pressure to perform and the least certain that they are doing a good job. The pressure is intensified because‚ for the most part‚ managers believe that they don’t have control over price: It is dictated by the market. Moreover‚ pricing is often seen as a difficult area in which to set objectives and measure results. Ask managers to define the
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Tomorrow’s Technology and You textbook. Chapter 1 1. What is the most important difference between a computer and a calculator? [RQ‚ no. 2] Calculators perform operations one at a time‚ while computers can process a sequence of operations using provided instructions. A typical calculator requires many interactions to perform a computation‚ while a computer takes a set of instructions. 2. How are computers today similar to those from World War II? How are they different? [RQ‚ no. 3] 3. The way people
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Chapter 1. Introduction to Computer Organization and Computer Evolution I. Computer Organization and Computer Architecture In describing computers‚ a distinction is often made between computer architecture and computer organization. Although it is difficult to give precise definitions for these terms‚ a consensus exists about the general areas covered by each. Computer Architecture refers to those attributes of a system visible to a programmer or‚ put another way‚ those attributes that have a
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Computer crimes are criminal activities‚ which involve the use of information technology to gain an illegal or an unauthorized access to a computer system with intent of damaging‚ deleting or altering computer data. Computer crimes also include the activities such as electronic frauds‚ misuse of devices‚ identity theft and data as well as system interference. Computer crimes may not necessarily involve damage to physical property. They rather include the manipulation of confidential data and critical
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on the board are slower than others and don’t require or can’t support the same bus speed. 3.) When you turn off the power to a computer at night‚ it loses the date‚ and you must reenter it each morning. What is the problem and how do you solve it? The problem is that the battery that runs the internal clock is no good. You either have to replace the battery or buy a new motherboard. 4.) Why do you think the trend is to store configuration information on a motherboard in CMOS RAM rather than
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COMPUTER FUNDAMENTALS SECTION A PART ONE MULTIPLE CHOICES: 1. (b) Two types. 2. (b) 1 or more input signals to produce output. 3. (d) Both (a) and (c). 4. (b) Non-volatile. 5. (c) Direct-access storage device. 6. (c) Multiple object program files of any software. 7. (d) None of the above. 8. (b) way in which the network’s nodes are linked together. 9. (a) World wide web 10. (a) General purpose electronic equipment for homes. PART TWO 1. WRITE A SHORT NOTES ON “THE OSI MODEL”
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number and title| HND in Computing and Systems Development | 02-Computer Systems| Assignment title|Computer Systems – Unit 2 | In this assignment you will have opportunities to provide evidence against the following criteria.Indicate the page numbers where the evidence can be found | Criteria reference|To achieve the criteria the evidence must show that the student is able to:||Task no.||Evidence| P2.1.1|Explain the role of computer systems in differentenvironments||T1.1||| P2.1.2|Explain the
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Cyber Crime Cyber crime‚ since the late 1980s to the early 1990s‚ has become an increasingly dominant form of crime throughout the world; however‚ we are just recently beginning to create solutions to these growing epidemics in the world. The solutions we have to these rising problems are created to help the victims‚ their families‚ and the communities around the offended persons. In the year 2001 “the FBI opened more than 1‚500 cases involving Internet child sexual exploitation‚ compared
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