Digital Design Flashcard 1

Front

Analyze this circuit: (i)Input A goes to one input of an AND gate. (ii)Input B goes to both a NOT gate and to the second input of the AND gate. (iii)The output of the NOT gate is the second input to an OR gate. (iv)The output of the AND gate is the first input to the OR gate. Write the Boolean equation and simplify it.

Back

A+B'

Front

Convert (4F9)₁₆ to octal.

Back

(2371)₈

Front

Represent -45 in 8-bit 2’s complement and add 1 to the 2's complement

Back

11010100

Front

What is the dual of the Boolean expression: A + AB'?

Back

A.(A + B')

Front

Which combination of gates can perform the function of an OR gate? Options: NAND + NOT, NOR + NOT, AND + NOT, XOR + AND

Back

NOR + NOT

Front

What is the Binary code equivalent of Gray code 11100?

Back

10111

Front

Divide (111100)₂ ÷ (11)₂ using binary division. (Convert to decimal and calculate)

Back

20

Front

What is the 9’s and 10’s complement of the decimal number 5472?

Back

4527,4528

Front

A logic circuit outputs HIGH only when the number of HIGH inputs between A and B is odd. Which logic gate expression does it indicate?

Back

XOR