Question

which of the following is not a peripheral?
output devices
input/output devices
input devices
cpu devices

Explanation:

Peripherals are devices connected to a computer to expand its functionality, like input (e.g., keyboard) or output (e.g., monitor) devices. The CPU (Central Processing Unit) is the core component of the computer that processes data, not a peripheral. Output devices, Input/Output devices, and Input devices are all types of peripherals as they interact with the computer externally.

Answer:

D. CPU devices