Understanding Logic Gates and Binary Numbers

What are the three basic types of logic gates?

• NAND

• NOR

• AND, OR, NOT

• XOR

What is the binary sum of 1011 and 1101?

• 11100

• 11000

• 10100

• 10010

Explain the function of a half adder in digital circuits.

• A half adder converts binary numbers to decimal format.

• A half adder adds two single-bit binary numbers, producing a sum and a carry.

• A half adder is used to store binary data in memory.

• A half adder multiplies two binary numbers to produce a product.

Convert the binary number 1101 to decimal.

• 10

• 14

• 13

• 12

What is the output of an OR gate when both inputs are 0?

• -1

• 1

• 0

• 0.5

How does a full adder differ from a half adder?

• A full adder can add three bits (including carry-in), while a half adder can only add two bits.

• A full adder is used for subtraction, while a half adder is used for addition.

• A full adder does not use carry-in, while a half adder does.

• A full adder can only add two bits, while a half adder can add three bits.

What is the decimal equivalent of the binary number 10010?

• 16

• 20

• 22

• 18