what they are

what is a computer?

A computer is a machine that can perform groups of instructions, called programs.

A computer does not need to be electronic. While when we use the term ‘computer’ to refer to the device you’re reading these words on, the word computer means ‘A device that computes’.

what sort of tasks do computers perform?

Computers are used anywhere you can use math to solve a problem. That means they can be used for nearly anything. Here are just a few examples;

  • robotics; by calculating how the robot should move
  • navigation; by calculating where things are at
  • heating and cooling; by calculating the temperature
  • health care; by calculating blood pressure, heart rate, etc.