Explanation

The operating system (OS) manages hardware resources and provides a platform to run application software.

It acts as an interface between the user and the computer hardware.

Explanation

Explanation

"Mine" is a possessive pronoun that shows ownership.

It replaces a noun phrase like “my book” with a single word: mine.

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

The volume of a cube is given by:

V = side³

= 5³

= 5 × 5 × 5

= 125 cm³

Explanation

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40 → HCF = 8

Explanation

Explanation

Explanation

"Who" is a relative pronoun connecting the noun "man" to the clause "lives next door to me."

It introduces a relative clause that gives more information about the noun.

Explanation

The preposition "in" is used to show something is inside a space or place.

Furniture is inside a room, so "in their room" is the correct usage.