"Micro computer minicomputer and mainframe computer" Essays and Research Papers

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    evolution of computer

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    Evolution of Computer A.P.Mohana priyaa Abacus Chinese invented calculating device called ABACUS Ø Also known as “SOROBAN” perform addition and Ø subtraction Wooden rack holding two horizontal wires with beads Ø strung on them. Rules memorized by the user Ø Regular arithmetic problems can be done Ø NAPIER’S DEVICE John Napier a Scottish Mathematician Ø Set of eleven animal bones later it was replaced by Ø rod Number marked on them‚they placed

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    Computer and Data

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    101: COMPUTER LITERACY QUIZ CHAPTER-2 Name_______________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) ________ is data that has been organized or presented in a meaningful fashion. 1) _______ A) A number B) Information C) A symbol D) A character 2) Which of the following is NOT one of the four major data-processing functions of a computer?

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    Computers Then and Now

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    Improvements on common machines Computer- For most of the people‚ computer is a machine used for a calculation or a computation‚ but actually it is much more than that. Precisely Computer is an electronic device for performing arithmetic and logical operation. Or “Computer is a device or a flexible machine to process data and converts it into information.” To know about the complete process that how computer works‚ we will have to come across the various terms such as Data‚ Processing and Information

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    Computer Hacking

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    Why is it that Computer Hacking is something we don’t ever hear about? Hundreds of Hackers every day break into banks and businesses and steal valuable information or even money from people such as ourselves. They are other hackers that start viruses and worms through big computer networks that can destroy all your information you have and your computer. Hackers use everyday things to start computer eaters‚ which is why we have those annoying viruses and worms everywhere in computers. We use anti-viruses

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    Computer Organization

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    Computer Organization with Assembly Language Digital Computer: A digital computer is a fast electronic calculating machine that accepts digitized input information‚ processes it according to a list of internally stored instructions‚ and produces the resulting output information. Types of Computers: 1. Personal Computers 2. Workstations 3. Mainframes 4. Supercomputers Basic Operation of a Computer 1. The computer accepts information in the form of programs and data through an

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    Lenovo computers

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    22/10/2007 11:28 Page 320 CASE EXAMPLE Lenovo computers: East meets West In May 2005‚ the world’s thirteenth largest personal computer company‚ Lenovo‚ took over the world’s third largest personal computer business‚ IBM’s PC division. Lenovo‚ at that time based wholly in China‚ was paying $1.75bn (A1.4bn‚ £1bn) to control a business that operated all over the world and had effectively invented the personal computer industry back in 1981. Michael Dell‚ the creator of the world’s

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    The History of Computer

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    schoolschool code:080020registration number: | Electronic Document Preparation Management (exemplar 1) | The History of Computer | Table of Contents The History of Computer 1 Who was the father of computer? 2 THE FIVE GENERATIONS OF COMPUTER 3 What computer was produced by J.Presper Eckert and John Mauchly 4 A Description Of The Device 4 The History of Computer 1. The Abacus: Is a calculating tool used primarily in parts of Asia for performing arithmetic processes? The Chinese

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    Computer Virus

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    Overview In the following report‚ "computer viruses" will be explained in detail. A lengthy and informative description of the evolution and history on microcomputer viruses will be given‚ to give you a background of their origin for some understanding of how they came to be. The next segment in the report is on how to combat computer viruses with the development of anti-virus applications. The current status of microcomputer viruses will also be discussed‚ naming the most common types

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    Computer Organisation

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    UNIT - I BASIC STRUCTURE OF COMPUTERS FUNCTIONAL UNITS A computer consists of five functionally independent main parts. They are‚ ➢ Input ➢ Memory ➢ Arithmetic and logic ➢ Output ➢ Control unit Basic functional units of a computer [pic] The operation of a computer can be summarized as follows The computer accepts programs and the data through an input and stores them in the memory.The stored data

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    Computer Engineer

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    9-710-442 FEBRUARY 14‚ 2010 JAN W. RIVKIN Revitalizing Dell From the early 1990s until the mid-2000s‚ Michael Dell and his company thrived in the tumultuous personal computer industry. Revenue of Dell Inc. rose from $3.5 billion in 1993 to $55.9 billion in 2005‚ making Dell the world’s largest producer of PCs‚ while net income climbed from $149 million to $3.6 billion. In many of those years‚ Dell earned more on PCs than all of its main rivals combined‚ and among top vendors‚ only Dell

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