Across
1
Input device with letter and number keys
3
Main processor of a computer
5
Interface for software to communicate
7
Data type with true or false values
8
Storage medium for digital data
9
Encode data to keep it secure
10
Computer that provides services to others
12
Security system blocking unauthorized access
13
Reusable block of code
Down
2
Rules for data communication
4
Physical components of a computer
6
Process of finding and fixing code errors
11
Series of commands for a computer