Computer-Organization
October 14, 2023UGC NET CS 2006 June-Paper-2
October 14, 2023Digital-Logic-Design
|
Question 525
|
An example of a self complementing code is :
|
8421 code
|
|
|
Gray code
|
|
|
Excess-3 code
|
|
|
7421 code
|
Question 525 Explanation:
→ Excess-3 code is also called Self-Complementing Code. Because 1’s complement of excess-3 number is equivalent to 9’s complement of corresponding decimal digit.
→ In excess-3 code, each of the 4-bit number represents decimal digit which is 3 less than actual decimal digit. So the bits have no fixed weight.
→ Excess-3 code is neither CRC nor Algebraic Code which are used for error detection and/or correction.
→ In excess-3 code, each of the 4-bit number represents decimal digit which is 3 less than actual decimal digit. So the bits have no fixed weight.
→ Excess-3 code is neither CRC nor Algebraic Code which are used for error detection and/or correction.
Correct Answer: C
Question 525 Explanation:
→ Excess-3 code is also called Self-Complementing Code. Because 1’s complement of excess-3 number is equivalent to 9’s complement of corresponding decimal digit.
→ In excess-3 code, each of the 4-bit number represents decimal digit which is 3 less than actual decimal digit. So the bits have no fixed weight.
→ Excess-3 code is neither CRC nor Algebraic Code which are used for error detection and/or correction.
→ In excess-3 code, each of the 4-bit number represents decimal digit which is 3 less than actual decimal digit. So the bits have no fixed weight.
→ Excess-3 code is neither CRC nor Algebraic Code which are used for error detection and/or correction.
Subscribe
Login
0 Comments