The ROM of a computer is used to boot up the computer when it is switched on.
What does the primary key do?
Uniquely identifies each record in the table
Unlocks the primary door
What is a Peer to Peer Network?
It is a network that computers configure to allow certain files and folders to be shared with everyone or with selected users.
A network that your peers can share by using the same computer as you.
A network that is so big, that it can be used by the whole world at once.