What are different categories of computer

1. Super computer – A super computer can be defined as a very strong, powerful machine though very costly but with a large primary storage.

Super computer is a very sophisticated system, because of this in the beginning its use was limited to only some of the operations like the scientific research, weather forecasting, military research etc, but now these machines are being used more commonly in business organizations etc. The use of super computers is very effective for performing functions that need very high speed and also need quick and complex computations.

The processing in the super computers is done in the parallel processing mode. India too has a super computer, called as the PARAM super computer developed by C-DAC, under the super vision of Dr. Vijay Bhatkar.

2. Mainframe Computer – This type of computer is also highly sophisticated in nature actually is a power house, with a huge secondary storage. The CPU of Mainframe computer is very strong, possessing a very high working speed and also supported with massive memory.

A Mainframe computer has the ability of doing multiple jobs, because of which it is very commonly used in large scientific and military operations. Various multiple jobs, being done concurrently can be easily done with the help of such computers.

3. Mini Computer – This type of computer is a small one, unlike the other types of computers explained above. It is also comparatively cheaper.

Online processing from multiple remote locations can be very easily performed with the help of a Mini Computer. This type of computer often finds its use in academic institutions, universities, research laboratories etc.

4. Micro Computer – A Micro computer can be referred to as the personal computer as it is compact and also small in size which makes it very easy to carry from one place to another. Because of all these plus points, a Micro computer finds its use not only at home (as a personal machine), but also is used in office, working place etc.

One major advantage of a micro computer is that by integrating this type of computer into organization wide network one can easily share hardware, software and also the data resources. The working of a Micro computer is very simple supported by a simple operating system.

Micro computers have small primary storage (one input unit and an output unit) and also a small secondary storage (Diskettes or Cassettes).