Unit II Digital Circuits

What is the base of binary number system?

• 10

• 2

• 8

• 16

When one of the input of AND gate is zero then output is

• 0

• 1

When one of the input of OR gate is one then output is

• 0

• 1

When inputs of XOR gate are dissimilar then output is

• 0

• 1

• invalid

Can we derive AND gate using NOR gate?

• Yes

• No

In combinational circuit, output depends on

• Current inputs and past outputs

• past outputs

• current inputs only

• Current inputs OR past outputs

Flip flop can store -- bit.

• 1

• 2

• 3

• As many as

Multiplexer is having -- input and -- output.

• 1, many

• 1,1

• many, 1

• many,1

In which type of circuit, clock is applied to all flip flops simultaneously?

• Combinational

• Sequential

n bit microcontroller has

• n bit ALU

• n bit data bus

• n bit address bus

• n bit ALU and n bit data bus