Computer XI Content
On the basis of Working Principle
Types of computers on the basis of Working Principle:
- Analog Computer
- Digital Computer
- Hybrid Computer
Analog Computer
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Digital Computer
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Hybrid computer |
Analog computer operates on continuous data like temperature, pressure, speed, voltage, etc. |
Digital computer operates on discontinuous or discrete data (0 and 1). |
Hybrid computer is the combination of analog and digital computer. It can operate on both continuous and discontinuous data. |
It operates by measuring and comparing. |
It operates by counting and calculation. |
It can convert analog data to digital and vice versa. |
It has low accuracy. |
It has higher accuracy. |
In a hybrid computer, analog component is used for measuring and comparing, and digital component is used for controlling. |
It usually contains either no any or limited storage capacity. |
It usually contains larger storage capacity. |
Its storage capacity varies from the application area. |
It is special purpose computer. |
It is a general purpose computer. |
It is a special purpose computer. |
It cannot be reprogrammed. |
It can be reprogrammed. |
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It can be operated only by skilled manpower. |
It can be operated by general users. |
It can be operated only by skilled manpower. |
Devices like thermometer, speedometer, pressure gauge, voltmeter, etc. are the examples of analog devices. |
Devices like digital watch, digital speedometer, etc. are the examples of digital devices. |
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‘Presley’ is an example of analog computer.
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IBM desktop PC, Dell laptop, Acer notebook are the examples of digital computers. |
Super computers are usually hybrid computer. |
* The wave form of analog computer is
- Weather forecasting
- Automated industry control
- Automated vehicles
- Rocket launching system
- Diagnosis in hospital