Across
1
Rules for data communication
4
Process of finding and fixing code errors
6
Pointer on a computer screen
7
Encode data to keep it secure
8
Input device with letter and number keys
10
Conversion of data into secret code
11
Point where user interacts with system
Down
2
Series of commands for a computer
3
Global computer network
5
Connected group of computers
9
Main processor of a computer