Hardware can be a peripheral device, a keyboard, mouse and monitor are all peripheral and hardware, but a motherboard is hardware but not a peripheral. Peripherals are hardware that you plug in and use with the aid of the computer.
A peripheral is a device connected to a computer, but not part of it. Examples would be a printer, keyboard, etc. Software is therefore not a peripheral device, but is an essential internal utility on a par with the motherboard, processor, and so on.
Which term can be used to describe a keyboard? ANSWER: a peripheral .....Look at the definition for the term peripheral. It states, "an external device attached to a computer, which can include printers, disk drives, monitors, and keyboards."