Computer Organization Quiz1

4 bit 2's complement representation of a decimal number is 1000. The number is

• +8

• 0

• -7

• -8

100101₂ is equal to decimal number

• 47

• 37

• 21

• 17

A₁₆ X 2₁₆ __________ .

• 16₁₆

• 15₁₆

• 14₁₆

• 13₁₆

For the binary number 11101000, the equivalent hexadecimal number is

• F 9

• F 8

• E 9

• E 8

AECF1₁₆ + 15ACD₁₆ = __________ .

• C47BB₁₆

• C47BE₁₆

• A234F₁₆

• A1111₁₆

For the K map of the given figure, the simplified Boolean expression is

• A' C' + A' D' + ABC

• A B' D + BC

• A C' D + AC

• A C' D + AC + BC

The IC number of the Ex-OR Gate and NOR Gate are

• 7486 and 7402

• 7436 and 7400

• 7486 and 7408

• 7436 and 7402

The number of inputs and outputs of a full adder are

• 2 and 3 respectively

• 3 and 2 respectively

• 5 and 2 respectively

• 4 and 2 respectively

In a 3 input NAND gate, the number of states in which output is 0 equals

• 8

• 1

• 6

• 5

When microprocessor processes both positive and negative numbers, the representation used is

• 1's complement

• 2's complement

• signed binary

• any of the above