Computer are electronic machines.they are used for helping us to solve the problems.The computer follow the instructions to process information about a problem.and then provide a solution to problem.
Computer have many different modals.They are used for tackling different kinds of problems. For example: A scientist can use a computer to do numerical calculations,A businessman can use computer to analyze a list of customers or stock,An Engineer can use computer to produce diagrams or plans,A student can use computer to calculate quickly and precisely.
The component of component computer divided by three,they are:
- ” Hard ware”: C.P.(Central Processor),Input Device,Output Device.
- “Soft ware”:Word Processing,”Speed shut”,”Design Grafis”,”Program Language”.
- “Brain ware”:User and Administrator.
The heart of computer is the Central Processor.The central processor consist of the memory unit,the control unit and the arithmatic unit.The C.P. is can for performing the necessory calculation and controlling the input and output unit. The memory unit is can for storing the data and the program. The control unit is can for selecting data and instruction from the memory unit interpret them and controlling the calculations.The arithmatic unit is can for adding,substracting and comparing. The input device is can used for conferting information into electronic pulses and possing the program and the data into the central processor . The output device is used for converting electronic pulses back to information and preset the information to the user .
The Word processing is program to doing word ,”Speed shut is program to doing chart ,”Design Grafis” is program to design picture,Program language is language that used to make a program computer,
The User is a person can to operate computer ,Administrator is a person that which regulating work system ,work rotation ,until output device.