Binary Number | MCQs

Explanation

All data entered into a computer is converted into binary numbers (0s and 1s) for processing and storage.

Computers operate using the binary number system internally.

Explanation

A computer processes and stores all data in digital form, i.e., binary (0s and 1s).

Even analog data is converted into digital signals before processing.

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

Binary numbers are made up of only two digits: 0 and 1.

Only 1001 consists solely of 0s and 1s, making it a binary number.

Explanation

• This is because 101.10111 is a decimal number in scientific notation, whereas the other options (101, 1011, and 0) are all binary numbers.
• In binary, the only digits used are 0 and 1, and there is no decimal point or scientific notation.