DE-1

If both inputs of  XOR gate is same,  then the output will be

• zero

• one

• high

• positive

If any one a two input of  XOR gate is one,  then the output will be

• zero

• one

• low

• positive

A half adder has __________inputs & ___________ outputs

• 2,1

• 1,2

• 2,2

• 2,3

A  full adder has __________inputs & ___________ outputs

• 2,2

• 3,2

• 2,3

• 2,1

A half adder adds ________bits at a time

• 2

• 3

• 1

• 4

A full adder adds ________bits at a time

• 1

• 2

• 3

• 4

A highest value input digit is encoded in______encoder

• BCD

• priority

• decimal

• 8421

The circuit used to convert  the coded form to a understandable form is ____

• encoder

• decoder

• comparator

• inverter

The circuit which is used to convert  a decimal digit into coded output _____

• encoder

• decoder

• comparator

• inverter

Multiplexers are also called__________

• Decoders

• encoders

• data selectors

• comparators