Across
1
Computer model of a real-world system
5
Rules for data communication
7
Smallest unit of a digital image
9
Encode data to keep it secure
Down
2
Input device with letter and number keys
3
Short-range wireless technology
4
Connected group of computers
6
Data type with true or false values
8
Conversion of data into secret code
10
Display screen for a computer
11
Pointer on a computer screen
12
Programs and applications on a computer
13
Portable personal computer