CLASSIFICATION OF COMPUTER
1)ANALOG COMPUTER
2)DIGITAL COMPUTER
3)HYBRID COMPUTER
#ANALOG COMPUTER:- Those computer which have input be signal are known as the analog computer.these are used for detection of signal or signal capacity of the any system, machine , computer,equipment, radiation, elements power, power, etc. it s mesorly used by the engineers doctors ,scientist, astronauts, etc..
Ex:- thermometer, sperometer,hydrometer,etc.
#Hybrid computer:- those computer which have the features and both of them analog and digital computer are known as hybrid computer.
Ex:-ECG(electronic carbo graph) , ultra sound, ECH, android phone.
#DIGITAL COMPUTER:- These computer which have input as data are known as digital computer.
Ex:-micro computer, calculator , digital Watch , super computer , etc.
On the basis of size
a) Mainframe Computer
Mainframe computers are large computers which processes at high speed and occupies a large space. This has a large capacity to handle huge numbers of records. More than 100 people can work at a time and communicate with different countries with Wide Area Networks via satellite. They are generally used in large scale organizations and government officers for large –scale data processing. Such computers can be seen in the Universities, Institute of Engineering, and Scientific research centers.
In one word, a large computer, usually designed to serve a number of remote terminals is called Mainframe Computer.
b) Mini computer
Mini computers are
medium in size than Mainframe computers but larger than microcomputers. They
are less powerful than super and Mainframe but more powerful than micro
computers. They are specially used in data processing, Programming, Desktop
publishing fields. In other words, a computer smaller than a mainframe and
larger than a microcomputer, intended to support multiple users is called Minicomputer
c) Micro Computer
Micro computer is also known as Personal Computer or Home Computer. They are made by using microprocessor. They are widely used at homes and officers. Many brands models and sizes are available in microcomputers. They are used in many fields of business, education, desktop & graphic designing, data processing etc.
In other words, a small computer driven by a single integrated circuit and designed for use by one person is called microcomputer. It is also called PC.
Microcomputers can be sub categorized into:
I. Desktop Computer: a personal or micro-mini computer sufficient to
Fit on a desk.
ii.
Laptop computer: a portable computer complete with an integrated screen and
keyboard.
It is generally
smaller in size than a desktop computer and larger than a notebook computer.
Laptop with Touch
Screen
Laptop with track
ball
Iii. Palmtop Computer/Digital Diary/Notebook: a hand-sized computer. Palmtops have no keyboard but the screen serves both as an input and output device.
d) Super Computer
A computer that is capable of working at very great speed, and can thus processes a very large amount of data within an acceptable time. Super computers are used in designing complicated machines as supersonic jets, space research, and picture composition for movie films, and for weather forecasting. Super Computers have the largest, fastest and most expensive systems in the world.
CRAY-I/II/III, CYBER-205, HITACHI-810/20 are some popular Super Computers.
CRAY-I Super Computer
On the basis of Brand
a) IBM PC
The computes manufactured by IBM (International Business Machine) company are called IBM Computers. The microcomputers of IBM Company are called IBM PC. IBM is one of the leading companies in computer industry.
b) IBM Compatible
Computers, developed on the principles of IBM Computers are called IBM Compatible. It can perform all the tasks that an IBM computer does. They are less expensive than original (IBM) computers.
In other words, a personal computer that is compatible with the IBM PC is called IBM Compatible Computer.
c) Apple/Macintosh
The computers manufactured by the Apple Company are called Apple Computers. They are specially used in Desktop-Designing. They are quite expensive than IBM and IMB Compatible.
The Operating System and other peripherals are completely different than IBM and IBM Compatibles.
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