railway RRB JE (CBT I + CBT II) Mock Test 2024 Digital Electronics Number System and Binary Codes Types of Number System
Which of the following statement is NOT correct?
1
Hexadecimal number uses sixteen distinct counting digits 0 through 9 and A through F
2
The 1’s complement of a binary number is obtained by changing its each 0 into a 1
3
Octal number has a base of 7
4
Excess-3 Code is an unweighted code