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WHAT IS A COMPUTER? an electronic device which is capable of receiving information (data) in a particular form and of performing a sequence of operations in accordance with a predetermined but variable set of procedural instructions (program) to produce a result in the form of information or signals. Computer can also be defined in terms of functions it can perform. A computer can i) accept data,ii)store data, iii) process data as desired, and iv) retrieve the stored data as and when required and v) print the result in desired format. The major characteristics of a computer are high speed, accuracy,diligence, versatility and storage. CHARACTERISTICS OF COMPUTERS The characteristics of computers that have made them so powerful and universally useful are speed, accuracy, diligence, versatility and storage capacity. Let us discuss them briefly. Speed Computers work at an incredible speed. A powerful computer is capable of performing about 3-4 million simple instructions ...
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Different Types of Computer.

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The two basic types of computers are as under :- 1. General Computer & 2. Special Computer. General Computer A  general -purpose  computer  is one that, given the appropriate application and required time, should be able to perform most common computing tasks. Personal computers , including desktops, notebooks, smart-phones and tablets, are all examples of  general -purpose  computers . Special Computer Types of Special Computers Analog Computer Digital Computer & Hybrid Computer. Analog Computer Analog computers are used to process analog data. Analog data is of continuous nature and which is not discrete or separate. Such type of data includes temperature, pressure, speed weight, voltage, depth etc. These quantities are continuous and having an infinite variety of values. It measures continuous changes in some physical quantity e.g. The Speedometer of a car measures speed, the change of temperature is measured by a Therm...
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