2s compliment/multiplexers KC

Which of the following is an example of a multiplexer?

• Your cell phone controlling the devices in your house

• Many computers connecting to one printer

• One computer connecting to one projector

Given the multiplexer at left, if a is 0 and b is 1, which combination below would need to be true to make q a 41

• A = 1, B = 0, C = 0

• A = 0, B = 0, C = 0

• A = 1, B = 0, C = 1

• A = 1, B = 1, C = 0

Convert the following base 10 number to 2's complement, 24

• 00011000

• 10011000

• 1100

• 10111100

Convert the following base 10 number to 2's complement, -24

• 11101000

• 10011000

• 01000

• 10111100

Add the following binary numbers 00000111 + 00001100

• 21010011

• 10010011

• 00100011

• 00010011

Add the following numbers in binary 00001111 + 11111100

• 11111111

• 11110111

• 00001011

• 00001111

What gate is pictured below?

• XNOR

• XOR

• NAND

• NOR

What type of number is 11110011

• +

• -