Across
1
Instructions written for a computer
3
Input device with letter and number keys
4
Device that directs network traffic
8
Security system blocking unauthorized access
9
Request for information from a database
10
Data type with true or false values
11
Portable personal computer
Down
1
Main processor of a computer
2
Computer that provides services to others
5
Pointer on a computer screen
6
Programming language for web browsers
7
Ordered collection of data elements
12
Software designed to harm computers