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Development of Computers

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Development of Computers The earliest known device to record computations was the abacus. It dates back to ancient times and was invented by the Chinese. Ten beads were strung onto wires attached to a frame. Addition and subtraction were read from the final positions of the beads. It was considered the first manual tool used in calculating answers to problems that provided information and in a primitive way storing the results. Abacus Mechanical Clock During the Middle Ages the first closed system in terms of calculating information was invented by use of a mechanical clock. The parts of the clock calculated the time of day. The time was displayed through the position of two hands on its face. The inventor pre-programmed the clock instructions through the manner in which the pull of the weights and the swing of the pendulum with the movement of the gears established the position of the hands on the clock face. Mathematics John Napier (Scotsman mid 1600s) discovered logarith

Introduction to Computers Quiz

Powered by www.manyamfranchise.com - Created by: M.A Nyamoti  Introduction to Computers Quiz Exercise questions 1.   What are the different parts that make up a computer? 2.   CPU stands for? 3.   What is a Modem? What is it used for? 4.   Data that has been processed and has meaning is referred to as?

Introduction to Computer Answers

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Powered by www.manyamfranchise.com - Created by: M.A Nyamoti  Introduction to Computer Answers 1.   What are the different parts that make up a computer? Mouse, Keyboard, System Unit, Screen(Monitor/VDU-Visual Display Unit) 2.   CPU stands for? Central Processing Unit 3.   What is a Modem? What is it used for? A modem is made from these two words: Mod ulation and Dem odulation this means converting digital signal into analogue for transmission and vice versa.