Which of the following is a seven-bit code?
2017
Which of the following is a seven-bit code?
- A.
Biquinary code
- B.
BCD code
- C.
2421 code
- D.
Excess-3 code
Attempted by 136 students.
Show answer & explanation
Correct answer: A
The Biquinary code is a 7-bit weighted code used to represent decimal digits. It consists of a 2-bit binary group (representing weights 5, 0) and a 5-bit quinary group (representing weights 4, 3, 2, 1, 0), adding up to exactly 7 bits per digit.
Conversely, BCD, 2421, and Excess-3 are all standard 4-bit coding schemes.
Thus, the correct option is A.