We can categorize computers in two ways: on the premise of information handling capabilities and size. On the premise of knowledge handling capabilities, the computer is of three types:

  • Analogue Computer
  • Digital Computer
  • Hybrid Computer

1) Analog Computer
Analog computers are designed to process analog data. Analog data is continuous data that changes continuously and can’t have discrete values. They measure the continual changes in physical quantity and usually render output as a reading on a dial or scale. Speedometer and mercury thermometers are samples of analog computers.

2) Digital Computer
An information processing system is meant to perform calculations and logical operations at high speed. All modern computers like laptops, desktops including smartphones that we use in reception or office are digital computers.

3) Hybrid Computer
It’s fast like a computing device and has memory and accuracy like digital computers. It can process both continuous and discrete data. So, it’s widely utilized in specialized applications where both analog and digital data are processed. As an example, a processor is employed in petrol pumps that converts the measurements of fuel flow into quantity and price. Similarly, they’re utilized in airplanes, hospitals, and scientific applications.