Mirco Computers :
Micro Computers are used by individual users which are small not much expensive.
Mini Computers :
Mini Computers are midsize computers which can support maximum 200 users at a time.
Mainframe Computers :
Mainframe Computers are large Computers which can process many programms concurrently and thousands of users can access mainframe simultaneously.
Super Computers :
Super computers are well known for their speed. These computers can process scientific data very fast and used for scientific calculations.