Across
1
Wireless internet connection
3
Encode data to keep it secure
4
Short-range wireless technology
7
Instructions written for a computer
8
Step-by-step problem-solving method
9
Connected group of computers
12
Software designed to harm computers
Down
2
Computer model of a real-world system
5
Collection of web pages
6
Programming language for web browsers
10
Point where user interacts with system
11
Global computer network