Character Representation Schemes
Compare ASCII and Unicode in terms of their capacity to represent and their characters applications.
Convert the character ‘K’ to its ASCII binary representation.
Why was EBCDIC developed, and what are its limitations compared to ASCII?
Encode the string “Hi” in Unicode (UTF-8) binary format.
What are the advantages of BCD for numerical representation data, and why is it less used?
Verified Answers
Answers:
- Answer: 1: ASCII (7 bits, 128 chars) for English; Unicode (8–32 bits) for global use. ASCII for text; Unicode for web.
Description: Unicode supports internationalization.
Answer: ‘K’ = 75 = 1001011 (7-bit).
Description: ASCII assigns codes to characters.Answer: EBCDIC for IBM mainframe; non-sequential, ASCII-incompatible.
Description: EBCDIC suited specific hardware.Answer: ‘H’ = 01001000, ‘i’ = 01101001.
Description: UTF-8 is ASCII-compatible for basic characters.Answer: BCD: 4 bits/digit, simple display; less efficient than binary.
Description: BCD used in early calculators.
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