A computer is an electronic data processing device, which accepts
and
stores data input, and generates the output in a required
format.
which can be classified by their speed and computing power.
|
|
Type |
Specifications |
|
1 |
PC (Personal Computer) |
It is a single user computer system having moderately powerful microprocessor. |
|
2 |
Workstation |
It is a single user computer system, has a more powerful microprocessor. |
|
3 |
Mini Computer |
It is a multi-user computer system, capable of supporting
hundreds of users simultaneously. |
|
4 |
Main Frame |
It is a multi-user computer system, capable of supporting
hundreds of users simultaneously. Software technology is different from minicomputer. |
|
5 |
Supercomputer |
It is
an
extremely
fast computer, which can
execute
hundreds of millions of instructions per second. |
PC (Personal Computer)
personal computers
are designed as
single-user
systems, these systems are normally linked together to form a network.
Workstation
Workstation is a computer used for CAD/CAM, desktop publishing, software development, and other types of applications and relatively high quality graphics capabilities.
which types of computer have a
high-resolution graphics screen, large amount
of RAM,
It is a multi-processing
system capable of supporting up to 250 users simultaneously.
Mainframe
It is very large in size and is an expensive computer . Mainframe executes many programs
concurrently and supports many simultaneous execution of
programs.
Supercomputers are
very expensive and are employed for specialized applications .
It is used for weather forecasting, scientific simulations,graphics, , nuclear energy research, electronic design, and analysis of geological data .