Across
1
Main processor of a computer
3
Temporary computer memory
4
Wired networking technology
5
Reusable block of code
6
Security system blocking unauthorized access
9
Pointer on a computer screen
10
Series of commands for a computer
12
Device that directs network traffic
Down
2
Computer model of a real-world system
7
Point where user interacts with system
8
Display screen for a computer
11
Set of instructions for a computer
13
Data type with true or false values