According to the size , memory and processing
Computers can be categorized in several ways. For Example Some computers for
designed for use by one person, some are meant to used by groups of people
,computers built with different sizes and capacities in terms of processing
speed, memory and cost to meet these requirements.
1. Micro
Computers.
a. Desktop
Computers
b. Notebook
Computers
c. Handheld
Pc’s
2. Mini
Computers.
3. Main
Frame Computers.
4. Super
Computers.
1. Micro Computers : The
Smallest general purpose computers available can be grouped under the category
of micro computers or personal computers. These computers are basically
designed to be used by a single user for small establishments. These computers
will have relatively small memory in processing speed and low cost. The size of
micro computers will be very small .
2. Mini Computers : The
computers designed to be used by a small group simultaneously is known as a
mini computer. Since more people are expected to simultaneously use this
machine, it is clearly, that the memory and processing speed will have to be
greater than a micro computer.
3. Mainframe Computers : Mainframe computers are much larger computers than
mini computers with higher memory, speed and of course cost. This is also acts
multi user system where about 200 maximum users may operate simultaneously.
4. Super Computers : The super
computer is the fastest of all the computers with a minimum speed of about 800
million instructions per second. This computer is also a multi user. The very
high cost of this machine, it is exclusively used in the organization where the
speed is criteria. In India ,
these computers are employed in weather Forecasting, Defense establishments
etc.