1
Copies of an original product.
2
To stop working
3
When a cellphone is capable of operating on the network of any chosen carrier.
4
The written promise to fix something for free.
5
A company that provides phone or Internet services.
6
An often small mechanical or electronic device with a practical use but often thought of as a novelty.
7
to put something in the market
8
A a metal object similar to a nail, with a raised spiral line around it.
9
An electronic problem in a device.
10
Each of several buttons on a panel for operating a computer.
