Adolescence /ˌæd

the Internet , also the internet /ðiˈɪn.tə.net/ /-t ̬ɚ-/ noun [ S ] ( informal the Net )
the large system of connected computers around the world which allows people to share information and communicate with each other using email
I found out about the bombings from/on the Internet.
keyboard /ˈkiː.bɔːd/ /-bɔːrd/ noun [ C ]
1. the set of keys on a computer or typewriter that you press in order to make it work, or the row of keys on a musical instrument such as a piano
See pictures key , computer
2. an electronic musical instrument similar to a piano
keypad /ˈkiː.pæd/ noun [ C ]
a small set of keys with numbers on them used to operate a television, telephone, calculator , etc., or the keys with numbers on them usually found on the right side of a computer keyboard