Main article: History of computer science Charles Babbage is credited with inventing the first mechanical computer. Ada Lovelace is credited with writing the first algorithm intended for processing on a computer. The earliest foundations of what would become computer science predate the invention of the modern digital computer. Machines for calculating fixed numerical tasks such as the abacus have existed since antiquity‚ aiding in computations such as multiplication and
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keyboard-8 bit Computer systems v Manual systems Benefits of computer system: Takes up less space Searching is very quick More than one person can access the same data form their network PC. The data stays in the computers memory Fewer staff are needed to look after a computer system Reports can be generated very quickly-automated Problems of a computer system: Setting up is very expensive Computer systems need people to maintain them POWER CUTS! It is easy to hack into a computer system.
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Computer keyboard In computing‚ a keyboard is a typewriter-style device‚ which uses an arrangement of buttons or keys‚ to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape‚ interaction via 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
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Lungsod ng Maynila UNIVERSIDAD DE MANILA Mehan Gardens‚ Manila SYLLABUS Course Code: CSC 010 Course Title: Computer Fundamentals Prerequisite (if any): None Unit Course: 3 Units 1.0 Course Description: It delves with the history and nature of computers‚ its developments‚ applications and types. It also includes the basic components of the computer system‚ the number systems and conversions‚ the elements of the Electronic Data Processing (EDP) system‚ the different Disk Operating
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With increasing popularity of computer games‚ and multimedia home PC users often need an unexpensive computer system upgrade. By building a custom computer one is able to combine componenets‚ and operating system to provide maximal gaming performance. Computers are often called number manipulators‚ because of their ability to run millions of mathematical operations per second (White 43). Computers use binary system of numbers‚ which allows them to operate system of microscopic switches called transistors
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the otherhand‚ the application of science leads to the development of technology. Technology comes from the Greek word tekne‚ which means art‚ craft or skill. Technology is the art craft and skill of harnessing scientific knowledge. Technology has improved the quality of life in many ways. DNA Analysis is now used to solve crimes.Packaged livelihood technologies produce goods and provide work and income. Nuclear research has brought about technologies fro treating cancer‚ preserving food and providing
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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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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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Abstract Mobile IP has been designed within the IETF to serve the needs of the burgeoning population of mobile computer users who wish to connect t o the Internet and maintain communications as they move from place to place. The basic protocol is described‚ with details given on the three major component protocols: Agent Advertisement‚ Registration‚ and Tunneling. Then route optimization procedures are outlined‚ and further topics of current interest are described. Charles E. Perkins‚ Sun Microsystems
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EVOUTION OF COMPUTERS The evolution of electronic computers over a period of time can be traced effectively dividing this period into various generations. Each generation is characterized by a major technological development that fundamentally changed the way computers operated. These helped to develop smaller‚ cheaper‚ powerful‚ efficient and reliable devices. Today‚ life has become indispensable without a computer. You find computerization in almost every sphere and industry. Computer evolution
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