Brief Esssay on Computer Codes

We are well conversant with binary numbers. As discussed earlier an electronic/ magnetic device can recognize two distinguishable states, we assign one state to 0 and the other state to be 1. Thus every single binary digit is stored and processed separately by a digital computer.

A binary digit when stored in computer hardware is called as a bit. Thus a complete binary number is stored as a combination of bits. As it is clear now, a digital computer accepts every information (be it an alphabet or a number or combination of both) in form of O's and 1s.

So our task is to represent every alphabet (A to Z), number (0 to 9) and special characters ( / ? + " @ # * &^ = {} % ~ [] ...) in a ...

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asks for a nail of a particular size, what shall we do? We have to search the entire tool box for the nail, which would not be faster.

Instead, if the nails / nut bolts are kept in different packets as per their sizes. Then imagine the finding a nail of any given size! Definitely, the search would be faster!! Exactly, the encoding of characters does that in digital operation.

Encoding of the characters began as early as 1963. A data may consists of either a single character or a number of characters. Computer accepts each character as a group of bits. Such a group of bits used to represent a character (a letter, a number or any special symbol) is called a byte. In modern digital computers a byte consists of 8 bits, i.e. every character is represented internally by a group of 8 bits.

There may be different ways of encoding every character used for a computer. In order to avoid any ambiguity, some standards have been defined by the computer industries. Notable among them are ...

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PAPER DETAILS
Added: 12/8/2011 01:18:09 PM
Submitted By: RudraPatel
Category: Computers
Type: Premium Paper
Words: 1144
Pages: 5

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