Across
1
Instructions written for a computer
2
Ordered collection of data elements
4
Security system blocking unauthorized access
7
Encode data to keep it secure
11
Request for information from a database
12
Information processed by a computer
13
Main processor of a computer
Down
1
Pointer on a computer screen
3
Physical components of a computer
5
Wireless internet connection
6
Unit of digital information equal to 8 bits
8
Global computer network
9
Reusable block of code
10
Rules for data communication