engineering recuitment NIC NIELIT Scientist B 2023 Mock Test Digital Logic Number Representations and Computer Arithmetic Number Representation
Which of the following is FALSE?
1
A 1-bit gray code has two code words 0 and 1 representing decimal numbers 0 and 1. respectively.
2
2's complement of a 2's complement of a number is the number itself.
3
Excess-3 code for 369 is 011110011100.
4
In 7-bit Hamming code of BCD, the parity bits are placed at 1, 2 and 4 locations.