Across
1
Input device with letter and number keys
5
Security system blocking unauthorized access
6
Interface for software to communicate
8
Wired networking technology
10
Rules for data communication
13
Connected group of computers
Down
2
Data type with true or false values
3
Encode data to keep it secure
4
Computer model of a real-world system
7
Temporary computer memory
9
Program to access the internet
11
Moving images created digitally
12
Unit of digital information equal to 8 bits