Across
1
Point where user interacts with system
6
Storage medium for digital data
7
Display screen for a computer
8
Conversion of data into secret code
10
Security system blocking unauthorized access
12
Physical components of a computer
13
Rules for data communication
Down
2
Pointer on a computer screen
3
Computer model of a real-world system
4
Program to access the internet
5
Portable personal computer
9
Step-by-step problem-solving method
11
Function that calls itself