comprised of

verb

Unit 8 — Language Lesson

Definition
Made up of many parts; the many parts that something is made of.

Example
Digital information is comprised of ones and zeroes.

damage

noun

Unit 8 — Language Lesson

Definition
Harm or injury.

Example
Sometimes a virus can cause so much damage to a computer that it stops working.

exchanged

verb

Unit 8 — Language Lesson

Definition
To change something for something else of a similar value or type.

Example
We exchanged e-mail addresses so that we can contact each other by e-mail. Now, I have his e-mail address and he has mine.

hardly ever

adverb

Unit 8 — Language Lesson

Definition
Rarely; almost never.

Example
Our Internet connection hardly ever has any problems. It usually works very well.

server failure

phrase

Unit 8 — Language Lesson

Definition
When a computer or device on a network that manages network resources is not working.

Example
Server failure can cause a business to close down if most of the work is done by computer. If the computers aren't working, then the business can't function.

turned on

verb

Unit 8 — Language Lesson

Definition
Having the power switched on.

Example
Make sure that the printer is turned on so that you can print the document. It won't print if the printer is turned off.

widespread

adjective

Unit 8 — Language Lesson

Definition
Existing or happening in many places among many people.

Example
Some viruses are so widespread that they affect every country because the Internet is international.