Basic Computer
Computer Tutorial

What is Computer



Computer

Computer is an advanced electronic device that takes input raw data from the user and processes these data under the control of set of instructions ( set of instraction called program) and gives the desired result as output and may saves output for the future use and print the result in desired format.
A computer has four functions:
1. Accepts data (Input)
2. Processes data (Processing)
3. Produces rsult (Output)
4. stores results (Storage)
A computer System:
All of the components of a computer system can be summarized as-
COMPUTER SYSTEM = HARDWARE + SOFTWARE+ USER
  • Hardware = Internal Devices + Peripheral Devices ( All physical parts of the computer. )
  • Software = Programs (Software gives "intelligence" to the computer.)
  • User = Person (who operates computer.)

Block diagram of computer

Block diagram of computer