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Module 1: Functional Block of computer and Data representaion

20222m

(a) The 8-bit encoding format used to store data in a computer is
(i) ASCII
(ii) EBCDIC
(iii) ANCI
(iv) USCII

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Answer: (ii) EBCDIC (8-bit) — with note:

  • EBCDIC (Extended Binary Coded Decimal Interchange Code) is 8-bit encoding used in IBM mainframes to store data. ASCII is originally 7-bit (extended 8-bit later), but classic textbook for 8-bit format cites EBCDIC.
  • USCII/ANCI are not standard encodings.

If strict modern context: Extended ASCII is also 8-bit, but among given options EBCDIC is the intended 8-bit format. Some keys mark EBCDIC as correct.

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