Digital and Analog Computers

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Hi Friends, Today I describe about Digital and Analog Computer............So Lets Start....

Computers which are in use today are digital computers. They manipulate numbers. They operate on binary digits 0 and 1. They understand information composed of only 0s and 1s. In the case of alphabetic information, the alphabets are coded in binary digits. A binary digit is called bit. A group of 8 bits is called a byte. Computers do not operate on analog quantities directly. If any analog quantity before processing. The output of a computer is also digital. If analog output is needed, the digital output has been converted to alphabets. The components which convert alphanumeric characters to binary format and binary output to alphanumeric characters are the essential parts of a digital computer. But the electronic components which convert analog quantity to digital quantity or digital quantity to analog quantity are connected to a digital computer at peripherals where needed. Processing of analog quantity is usually encountered in industrial control and instrumentation, not in general purpose computation, text manipulation or information storage, retrieval or transmission.

The computer which can be process analog quantities is called an analog computer. Today, analog computers are rarely used. Earlier, analog computers were used to simulate certain system. They were used to solve differential equation.

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