Across
1
Display screen for a computer
4
Temporary storage for fast access
6
Smallest unit of digital data
7
Encode data to keep it secure
9
Collection of web pages
Down
2
Input device with letter and number keys
3
Computer model of a real-world system
5
Software designed to harm computers
8
Connected group of computers
10
Named storage location in code
11
Program to access the internet
12
Instructions written for a computer