Across
1
Programs and applications on a computer
4
Computer model of a real-world system
7
Collection of web pages
8
Temporary storage for fast access
9
Software designed to harm computers
Down
1
Series of commands for a computer
2
Input device with letter and number keys
3
Encode data to keep it secure
3
Conversion of data into secret code
5
Organized collection of stored data
6
Security system blocking unauthorized access
10
Physical components of a computer