Knowledge of computer
           

     1. What is computer

      = Computer is a an electrical data                       processing system which can perform           mathematical and logical operation by           suitable input, process it an can                       produce diesare result as output an               can store data for purpose.
     
      2. What is hardware?
       = The mechanical parts of computer                   that can be picked up is called
           hardware
   
                              Hardware

Four parts of computer
1. Input
2. Output
3. Central processing unit
4. Memory