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27 August, 2019

WHAT IS COMPUTER?

WHAT IS COMPUTER? 


 Comput er is an advanced electronic device that takes raw data as input from the user and processes these data under the control of set of instructions (called program) and gives the result (output) and saves output for the future use. It can process both numerical and non- numerical (arithmetic and logical) calculations. 
 A computer has four functions:
  a. accepts data.                  Input 
  b. processes data               Processing 
  c. produces output.           Output  
  d. stores results.                Storage

INPUT (DATA): 
Input is the raw information entered into a computer from the input devices. It is the collection of letters, numbers, images etc.

PROCESS
 Process is the operation of data as per given instruction. It is totally internal process of the computer system. 

OUTPUT
 Output is the processed data given by computer after data processing. Output is also called as Result. We can save these results in the storage devices for the future use

COMPUTER SYSTENM
 All of the components of a computer system can be summarized with the simple equations. 
  COMPUTER SYSTEM = HARDWARE + SOFTWARE+ USER

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