横向
1
Instructions written for a computer
4
Main processor of a computer
5
Software designed to harm computers
6
Encode data to keep it secure
7
Device that directs network traffic
11
Storage medium for digital data
纵向
2
Reusable block of code
3
Wired networking technology
8
Convert code into executable program
9
Rules for data communication
10
Global computer network
12
Point where user interacts with system