teleprinter-style keyboards became the main input device for computers. A keyboard typically has characters engraved or printed on the keys and each press of a key typically corresponds to a single written symbol. However‚ to produce some symbols requires pressing and holding several keys simultaneously or in sequence. While most keyboard keys produce letters‚ numbers or signs (characters)‚ other keys or simultaneous key presses can produce actions or computer commands. Despite the development of alternative
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HISTORY OF COMPUTER THE PRE-MECHANICAL AGE: 3000 B.C. – 1450 A.D. 1. Writing and Alphabets – Communication First development of signs corresponding to spoken sounds‚ instead of pictures‚ to express words. Around 2000 B.C.‚ Phoenicians created symbols that expressed single syllables and consonants (the first true alphabet) The Greeks later adopted the Phoenician alphabet and added vowels; the Romans gave the letters Latin names to create the alphabet we use today. 2. Paper
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2 Fundamentals of Computer Systems You need to be able to: (a) define a computer system (b) describe the importance of computer systems in the modern world (c) explain the need for reliability in computer systems (d) explain the need for adherence to suitable professional standards in the development‚ use and maintenance of computer systems (e) explain the importance of ethical‚ environmental and legal considerations when creating computer systems. What is a computer system? At its very basic
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------------------------------------------------- HND Computer and Systems Development ------------------------------------------------- ASSIGNMENT ------------------------------------------------- 2012 – 13 COLLEGE | City of Westminster College | PROGRAMME | HND Computer and Systems Development | MODULE NAME & CODE | Computer Systems Unit 2 (L/601/0446) | STUDENT NAME | | ASSESSOR | Anas Ahmed | ASSIGNMENT NUMBER | ONE | | Tasks | Hand in Dates: | | Task 1 – Report | Friday 14th
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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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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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in using computers? · What are the purposes of elementary students in using computers? > educational purposes such as research. > Entertainments like playing online games. · What are the implications of computer’s exposure to students in terms of: > Cognitive (involved in learning‚ knowing‚ and understanding things) POSITIVE EFFECT = Helps to widen their learnings = They can develop their communication skills. NEGATIVE EFFECTS = Ma prone sila sa mga content sa computer na dili
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Date | Event | c. 2400 BC | The abacus - the first known calculator‚ was probably invented by the Babylonians as an aid to simple arithmetic around this time period. This laid the foundations for positional notation and later computing developments. | 1300 | Ramon Llull invented the Lullian Circle: a notional machine for calculating answers to philosophical questions (in this case‚ to do with Christianity) via logical combinatorics. This idea was taken up by Leibniz centuries later‚ and is thus
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ERANAD KNOWLEDGE CITY TECHNICAL CAMPUS MANJERI DEPARTMENT OF SCIENCE AND HUMANITIES Mr. Muhammed Shaf i .kk Assistant Professor in Humanities and Communication mkkmshafi@gmail.com +919846383421 Module -1 (10 hrs) PROFESSIONAL ETHICS AND HUMAN VALUES UNIT I – HUMAN VALUES VALUES Values are individual in nature. Values are comprised of personal concepts of responsibility‚ entitlement and respect. Values are shaped by personal experience‚ may change over the span of a lifetime
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HISTORY OF COMPUTERS Ancient era Suanpan (the number represented on this abacus is 6‚302‚715‚408) Devices have been used to aid computation for thousands of years‚ mostly using one-to-one correspondence with fingers. The earliest counting device was probably a form of tally stick. Later record keeping aids throughout the Fertile Crescent included calculi (clay spheres‚ cones‚ etc.) which represented counts of items‚ probably livestock or grains‚ sealed in hollow unbaked clay containers.[1][2]
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