EBCDIC code 1111 1001 represents the character ______.
2022
EBCDIC code 1111 1001 represents the character ______.
Answer: D. 9 — ConceptEBCDIC is an 8-bit character-encoding system. A byte can be read as two 4-bit nibbles and converted to two hexadecimal digits; the EBCDIC table then…
- A.
F
- B.
R
- C.
I
- D.
9
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Correct answer: D
Concept
EBCDIC is an 8-bit character-encoding system. A byte can be read as two 4-bit nibbles and converted to two hexadecimal digits; the EBCDIC table then maps that hexadecimal byte to a character.
Application
Split 1111 1001 into the nibbles 1111 and 1001.
Convert each nibble to hexadecimal: 1111 is F and 1001 is 9, so the byte is F9.
In EBCDIC, the hexadecimal range F0 through F9 represents the decimal digits 0 through 9; therefore F9 maps to the digit 9.
Contrast
The uppercase letter F has EBCDIC hexadecimal code C6.
The uppercase letter R has EBCDIC hexadecimal code D9.
The uppercase letter I has EBCDIC hexadecimal code C9.
Cross-check
The same lookup in decimal gives EBCDIC byte 249 for the character 9, and 249 in binary is 1111 1001.
Result: the represented character is 9.