The circuitries of computer are designed on the basis of electrical signals and data travel them as the speed of current, therefore the computer is able to perform any task at the high speed.
Computer is called diligent machine because it can perform the task repeatedly without loosing its speed and accuracy for a long time.
Computer is called versatile machine because it is used in almost all the fields for various purposes.
Four applications of computer are:
  • Education
  • Banking
  • Offices
  • Entertainment

Any five features of computer are as follows:

  • Speed
  • Diligence
  • Accuracy
  • Automatic
  • Versatility