computers

Computers (Student Name

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Today one can not think off any work without the use of computers Wherever one go they find some type of computer use for all the every day activity . In education , banks , military , retails shops , industry and organization , space research and many more fields the computer plays an important parts . Today the vast amount of information that is contained on the Internet is a cluster of many more computers on the network

In ancient time people were involved in computing and are

called as computer . Computer was originally a job title describing those people whose job was to perform the repetitive calculations required to compute for the navigational tables , tide charts , and planetary positions for astronomical almanacs (Kopplin 2002 . Also the abacus was used by Babylonians as an early aid for mathematical computations at around 3000 B .C (Bauer n .d . In 1617 John Napier invented logarithms that allow multiplication to be performed via addition . Sometimes later in 1642 Pascal invented the Pascaline , a gear driven calculator for aid to his father in tax collector job . At the same time Gottfried Wilhelm Leibniz made a calculator (stepped reckoner ) that was able to perform addition , subtraction , multiplication , and division . In 1801 the Frenchman Joseph Marie Jacquard made wooden card for Power loom This made the way for punched card which was used from than for calculation . In 1935 , International Business Machines (IBM ) introduced 601 multiplying punch-card machines ' along with an electronic typewriter . Some time later in 1944 , IBM with partnership with Harvard introduced Mark I , the first programmable digital computer in US . In 1976 Apple had introduced home computer as Apple I . But these computers were big enough and with the introduction of integrated circuit the size of the computer becomes very small as compared to earlier ones (Kopplin 2002

Nowadays the computers are very small and reached with everyone in almost all the fields and application areas . IBM , Apple and HP are some of the leading computer hardware manufactures . Also the Operating system market that controls the computer is mainly dominated by Microsoft

In general , computer has four components control unit , memory arithmetic and logical unit and input and output (I /O ) devices which are connected with the help of busses (wires . Computer professionals often refer whole computer as the CPU . In such case CPU refers to the processor , memory (RAM ) and Input /Output (I /O ) architecture (channels or buses .Moreover , CPU definitions and understanding vary depending on field of the person therefore , a CPU can mean the processor , memory and everything inside the cabinet , or just the microprocessor itself . CPU stands for Central Processing Unit and is referred as brain of the computer . It is also called as processor or central processor and most of the calculation takes place in it . CPU is responsible for controlling all the activities of the computer systems . It is mounted on motherboard with other electronics . The CPU is linked to main memory , peripheral equipment and...