Digital Electronics Objective Questions – Set 11

Which one of the following is an invalid state in 8-4-2-1 binary coded decimal counter

Which of the following notations have two representations of zero? (I) 1’s complement with radix of number being 2 (II) 7’s complement with radix of number being 8 (III) 9’s complement with radix of number being 10 (IV) 10’s complement with radix of number being 10 Select the correct answer using the codes given below:

AND operation of (79)₁₀ & (-56)₁₀ is

The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

What is the gray code for the binary 101011?

Which of the following is 1’s complement representation of -34?

What is the 2’s complement of 10110000?

A group of four bits is known as

The number of digit 1 present in the binary representation of (3 × 512 + 7 × 64 + 5 × 8 + 3) is

Statement(A): 2’s complement arithmetic is preferred in digital computers. Statement(R):The Hardware required to obtain the 2’s complement of a number is simple.

(FE35)₁₆ XOR (CB15)₁₆ is equal to

Which of the following is 2’s complement of +12?

Which of the following is 1’s complement representation of +57

Consider the following multiplication: (10w1z) × (15)₁₀ = (y01011001)₂ Which one of the following gives appropriate values of w,y and z?

The minimum decimal equivalent of the number 11C is

The hex address of the 256th memory location is

The binary equivalent of hexadecimal number 4F2D is

In signed magnitude representation, the binary equivalent of 22.5625 is (the bit before comma represents the sign)

To add two m-bit numbers, the required number of half adder is

The decimal number 0.246 in binary is

What are the values of R1 and R2 respectively in the expression (235)_R1 = (565)₁₀ = (1065)_R2

F’s complement of (2BFD)_Hex is

The 1’s complement of 11010111 is

If two numbers in excess-3 code are added and the result is less than 9, then to get equivalent binary

A new Binary Coded Pantry (BCP) number system is proposed in which every digit of a base-5 number is represented by its corresponding 3-bit binary code. For example, the base-5 number 24 will be represented by its BCP code 010100. In this numbering system,the BCP code 100010011001 corresponds to the following number in base-5 system

A number system with radix 2 is known as

To get an excess-3 code from BCD code

The binary number 110011.11 is equivalent to decimal number

The decimal equivalent of hexadecimal number of 2A0F is

Which is typically the longest: bit,byte,nibble,word?