7 unit

3. the part of a radio, television, or computer, or of a piece of electrical equipment for playing recorded sound, through which the sound is played.
7. bring together or into contact so that a real or notional link is established.
8. an electronic device that deals with communications between two or more computer networks
10. publish (a piece of writing, image, or other item of content) online, typically on a blog or on social media.
12. to give money to someone for work that they have done:

1. to take something you have bought back to a shop and exchange it for something else
2. remove or obliterate
4. something such as a piece of paper or message proving that money, goods, or information have been received:
5. copy (data) from one computer system to another, typically over the internet.
6. produce (books, newspapers, etc.), especially in large quantities, by a mechanical process involving the transfer of text or designs to paper.
9. the transmission of a file from one computer system to another, usually larger computer system
11. to go from one page to another on the Internet, browsing for topics of interest