Lesson System specifications Task Match each word to a suitable definition

Lesson 5. System specifications
Task 1. Match each word to a suitable definition.

1.External drive	a) pair of earphones joined by a band placed over the head, for listening to audio signals such as music or speech.
2.Headphones	b) various devices (including sensors) used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a human operator
3.Storage	c)a device providing power to electronic equipment
4.Peripherals	d) an internal or external computer disk drive that uses laser beam technology to read and write data.
5. Socket	e)portable storage devices typically used to store data such as photos, videos, and documents.
6. Power supply unit	f) a word, letter, or number placed before another.
7.Optical drive	g) an electrical device receiving a plug or light bulb to make a connection.
8.Prefix	h) The retention of retrievable data on a computer or other electronic system.