Table of contents
classificationof computer
Hybrid computer
Introduction to computer
Analog computer
Micro computer
Mainframe computer
Mini computer
Super computer
01
02
03
04 Digital computer
05
06
07
08
09
3.
INTRODUCTION TO COMPUT
01
Acomputer is a programmable machine that receives input, stores
and manipulates data, and provides output in a useful format.
▪ A computer is a machine that manipulates data according to a set of
instructions.
▪ A computer is a machine for performing calculations automatically
4.
BASED ON SIGNALCOMPUTER CAN BE CLASSIFIED AS:
▪ ANALOG COMPUTER
▪ DIGITAL COMPUTER
▪ HYBRID COMPUTER
BASED ON CAPACITY AND STRUCTURE COMPUTER CAN BE CLASSIFIED AS:
▪ SUPER COMPUTER
▪ MAINFRAME COMPUTER
▪ MINI COMPUTER
▪ MICRO COMPUTER
Computer classification
5.
A computer thatrepresents data in terms of
physical measures or quantities and
proceeds along a continuum constituted by
its components.
● ▪ An analog computer can work both
mechanically and electronically
● ▪ Analog computer handles continuous
variables
● ▪ Analog Computer can carry out
multiple tasks simultaneously
Analog computer
6.
DIGITAL COMPUTER
A computerthat stores data in terms
of digits and proceeds in discrete
steps from one state to the next. A
computer that stores data in terms
of digits and proceeds in discrete
steps from one state to the next.
7.
Hybrid computer
Hybrid computersare computers that
exhibit features of analog computers and
digital computers. The digital component
normally serves as the controller and
provides logical operations, while the
analog component normally serves as a
solver of differential equations.
8.
Super computer
The largestcomputers are supercomputers. They are the most
powerful, the most expensive, and the fastest. They are capable of
processing trillions of instructions per second. Examples of users of
these computers are governmental agencies, such as the IRS, the
National Weather Service, and the National Defense Agency.
9.
Mainframe computer
Mainframe Computer:Large computers
are called mainframes. Mainframe
computers process data at very high
rates of speed, measured in the millions
of instructions per second. They are very
expensive, costing millions of dollars in
some cases. Mainframes are designed
for multiple users and process vast
amounts of data quickly.
10.
Mini computer
A minicomputeris a class of multi-
user computers that lies in the
middle range of the computing
spectrum, in between the largest
multi-user systems (mainframe
computers) and the smallest single-
user systems .
11.
Micro computer
A microcomputeris a computer with
a microprocessor as its central
processing unit. They are physically
small compared to mainframe and
minicomputers. Many
microcomputers are also personal
computers.