Across
1
Rules for data communication
3
Physical components of a computer
9
Process of finding and fixing code errors
10
Point where user interacts with system
11
Function that calls itself
12
Program to access the internet
Down
2
Computer that provides services to others
4
Display screen for a computer
5
Security system blocking unauthorized access
6
Device that directs network traffic
7
Organized collection of stored data
8
Main processor of a computer