History of Computers Glenn G. Fabia Department of Computer Science Ateneo de Naga University A typical computer operation back when computers were people. Counting Tables History of Computers 2 A Modern Day Abacus (Oldest surviving‚ 300 B.C) Note how the abacus is really just a representation of the human fingers: the 5 lower rings on each rod represent the 5 fingers and the 2 upper rings represent the 2 hands. History of Computers 3 Napier’s Bones In 1617 John Napier
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During the Windows startup process‚ the computer may stop responding (hang)‚ and you may receive the following error message: *** Hardware Malfunction Call your hardware vendor for support *** The system has halted *** One of the following error messages may also be included: NMI: Parity Check / Memory Parity Error NMI: Channel Check / IOCHK
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The Computer Applications program is for students who want to use the computer as a tool of productivity. The General Education courses‚ in conjunction with specialized courses‚ provide a broad foundation and sharpen students’ skills in preparation for entry into or advancement in today’s workplace. This curriculum‚ following the database systems track‚ provides training‚ skills‚ and knowledge that prepare students for employment as entry-level database programmers and designers; or provides
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White-collar crime‚ specifically computer crime‚ is becoming more popular as computers become more readily available. Crimes using computers and crimes against computers are usually committed without fear of being caught‚ due to the detachment of the offender from the victim. Computer crime is defined as‚ “Criminal activity directly related to the use of computers‚ specifically illegal trespass into the computer system or database of another‚ manipulation or theft of stored or on-line data‚ or sabotage
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System: An operating system (OS) is a set of software that manages computer hardware resources and provides common services for computer programs. The operating system is a vital component of the system software in a computer system. Application programs require an operating system to function. Types: 1. Real-time A real-time operating system is a multitasking operating system that aims at executing real-time applications. Real-time operating systems often use specialized scheduling algorithms so
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Dell Computers1 Introduction Dell Computers was founded by Michael Dell in 1984 and has its corporate headquarters in Round Rock‚ Texas. Michael Dell’s winning idea was to sell computer systems directly to customers‚ allowing him and his company to understand customer needs well and therefore to provide the customer with the most appropriate computing solutions. Dell still practices the direct business model‚ saving time and cost by bypassing retailers and passing on the cost savings to the
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What is a computer: A computer is an electronic device that executes the instructions in a program. A device that accepts data‚ processes the data in accordance with the stored program‚ generates results and usually consists of input‚ output‚ storage‚ Airthmatic logic and control units. A computer has four functions: a. accepts data Input: Data or information written into the computer by user The Information Processing Cycle b.processes data Processing: The calculations performed according
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Computer Mouse: Consumer Driven Innovation The computer mouse controls the pointer on a computer screen‚ allowing a user to navigate throughout programs‚ websites‚ etc. The mouse is moved around a surface by the user’s hand in order to translate that movement to the pointer on the computer screen. Computers were only invented shortly before the earliest mice were developed‚ and there were very few computers around. There was little demand for an invention like this‚ but before the mouse was invented
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Computers have made a triumphal entry into education in the past decade‚ and only a dyed-in-the wool Luddite would deny that they have brought significant benefits to teachers and students alike. However‚ an uncritical use of computers can be just as disadvantageous to students as a refusal to have anything to do with them. In this article I discuss some of the ways that computers can be used in English language teaching‚ with a view to helping colleagues make the most of the opportunities they offer
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to Computers and C++ Programming 1 What is Computer? Computer Organization Computer Languages C++ Your First Program in C++ Variables and Operators Computer Programming (HKU SPACE HDIT 10/11) 2 Computer Programming (HKU SPACE HDIT 10/11) 3 Computer ◦ Device capable of performing two major functions 1. 2. Computations Making logical decisions Computer programs Hardware ◦ Sets of instructions used by computers to process
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