Sunday, December 7, 2008

Introduction Computer
A computer is a man-made Programmable electronic machine that can store, retrieve, and Porcess data according to a given set fo instruction
Whatever information given to a computer is termed input. The input typically comprises of two things. Data and intraction the data and the facts. Which are to be processed, and the intractions describe how the computer should process the data most people describe a computer as a device that comprises of a key board, Mouse, a central processing unit and a screen
Characteristic of computers








Speed
A computer can perform tasks very fast for example the amount of work that a human can do in an entire year can be done by a computer within a few minutes



2 Accuracy
The accuracy of a computer is consistently high errors can occur in a computer. But these are mainly due to human mistakes.
Diligence
Unlike human beings a computer can work for days withut making any errors or complaints



4 versatility
a computer is capable of performing any task reduced to a series of logical steps.
5 Power of remembering
Every piece of information that a user stores on a computer can be retained as long as is nceded and can be recalled when necessary a computer will never lose stored information on its own.



No IQ
It processes no intaligence of its own only the user can determine what tasks a computer will perform.



No feelings
Computer are devoid of emotions they have no feelings because they are hachines we often make certain judgments. Based our feelings knowledge are expevience but compcters cannot make such judgments on their own. Their judgments depend on the instructions given to them.
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Information Technology