Computer Science for IGCSE & O level - Data Representation (Section 5 - No. 46)

In computer science, what's the function of a computer's "switch" in relation to binary?

To convert decimal numbers to binary.

To represent a bit value of either 0 or 1.

To convert binary values to hexadecimal values.

To determine if a computer is on or off.

A switch is either on or off which can represent 1 or 0 (binary) depending on the system.