Computers and the internet
How Phones Work
Signals, bandwidth, and what happens behind the screen.
- Teens and up
- Confident · B2
- 12 words
The words
Every word in this set, with what it means. Tap a word to hear it.
- bar
- a long straight piece of metal or wood
- digital
- using numbers and electronic signals, not moving parts
- exchange
- to give one thing and receive another in return
- frequency
- how often something happens in a set time
- text
- written words on a page or screen
- voice
- the sound you make when you speak or sing
- band
- a group of musicians who play together
- app
- a small program you run on a phone
- download
- to copy a file from the internet onto your device
- pixel
- one of the tiny dots that make up a picture on a screen
- bandwidth
- how much information a connection can carry at once
- carrier
- a company that provides phone or internet service
