CLASSIFICATION OF COMPUTERS (II)
By Type:
1. Analog Computer:
They give their result is in continuous value rather than discrete value. They are built to respond to continuous signals such as electricity, temperature, pressure e.g. speedometer, wall clock, etc.
2. Digital Computer:
The word digital means discrete or whole number. Digital computers function by accepting and manipulating data in the form as discrete binary numbers e.g. digital thermometer, calculators, etc.
3. Hybrid Computer:
4. They combine the proper of both analog and digital computers. This means that they can accept and process data and produce output both in digital and analog formats.
By Size:
Computers can be classified by size, they are microcomputer, minicomputer, mainframe computer and supercomputers.
1. Micro Computers:
They are the smallest class of computers. It uses a single microprocessor mounted with memory chips as its central processing unit e.g. desktop, laptops, etc.
2. Minicomputers:
These are middle-level computers built to perform complex computations.
3. Mainframe Computers:
These are the largest class of computers. They have multiple chips so they can sustain a large amount of processing and allow many users at the same time.
Main Frame Computers
4. Super Computers:
They are the largest and fastest types of mainframe computers. They perform highly complex and time- consuming computations and are used heavily by scientists, large business and the military for large research work such as weather forecasts, oil explorations, etc.
By Purpose:
1. General Purpose Computers:
They are designed to solve a wide range of problems. They perform many functions because various types of application programs are stored in them e.g. Microcomputers.
2. Special Purpose Computers:
They are designed to solve a specific problem e.g. ultrasound machines, x-ray machines, fuel dispenser, etc.
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