what is Types of Computers
February 11, 2019
Types of
Computers
Analog Computers
An analog computer recognizes the data as a continuous
measurement of physical
property. Voltage, pressure, speed and temperature are some
physical properties that can be
measured in this way. Its output is usually displayed on a
meter or graph. It does not operate
with digital signals. It has low memory and fewer functions.
It is difficult to operate and use.
It is usually built for special purposes. It is mainly used
in engineering and medicine.
Examples
- 1Speedometer is used to measure the speed of a car. Analog clock measures time by the distance traveled by hands of clock around a dial.
- 3.Thermometer is an analog device that measures the length of mercury column.
Digital Computers
A digital computer processes data in numerical form using
digital circuit. It performs
arithmetic and logic operations with discrete values. These
values are O and 1. Everything is
described in two states of ON and OFF. The digit 1 represent
ON and O represent OFF
state. The digital computers are very fast. These computers
are manufactured in a variety Of
sizes, speeds and capacities. Digital computers are commonly
used at homes and in office
etc. Apple Macintosh and IBM PC are two important digital
computers.
Examples
1.
Digital watch displays the time that does not
vary continuously but changes from one discrete value to the other.
2.
Digital scoreboard directly counts discrete
values such as the time left to play and the
score
of each team.
Hybrid Computer
A hybrid computer is a combination of both analog and
digital computer. A hybrid
computer combines the best characteristics of both the analog
and digital computer. It can
accept data in analog and digital form.
Example
Hybrid computer devices may calculate patient's heart function,
temperature, blood
pressure and other signs. This measurement may then be
converted into numbers and display in digital form.