Computer Mathematics | MCQs

Explanation

To find the decimal equivalent of the binary number 1011:

(1 × 2³) + (0 × 2²) + (1 × 2¹) + (1 × 2⁰)

= (1 × 8) + (0 × 4) + (1 × 2) + (1 × 1)

= 8 + 0 + 2 + 1

= 11

Explanation

Computers use the binary number system (0 and 1) to store data and perform calculations.

This system aligns with the digital circuitry, which recognizes only two states: ON (1) and OFF (0).