Across
1
Short-range wireless technology
3
Ordered collection of data elements
4
Process of finding and fixing code errors
6
Rules for data communication
7
Security system blocking unauthorized access
8
Computer model of a real-world system
10
Input device with letter and number keys
11
Software designed to harm computers
Down
2
Device that directs network traffic
5
Point where user interacts with system
9
Global computer network