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InterviewSolution
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Write a note on ASCII and EBCDIC code. |
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Answer» 1. ASCII code: ASCII (American Standard Code for Information Interchange) is the most widely used coding system to represent data. ASCII is used on many personal computers and minicomputers. ASCII is a 7-bit code that permits 27 = 128 distinct characters. The 128 different combinations that can be represented in 7 bits are plenty to allow for all the letters, numbers and special symbols. An eight-bit was added. This allowed an additional 128 characters to be represented. The extra 128 combinations are used for symbols such as Ç ü è ©, ®, Æ, etc. 2. EBCDIC code: (Extended Binary Coded Decimal Interchange Code) Pronounced “ebsuh-****.” The binary code for text as well as communications and printer control from IBM. This data code originated with the System/360 and is still used in IBM mainframes and most IBM midrange computers. It is an 8-bit code (256 combinations) that stores one alphanumeric character or two decimal digits in a byte. |
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