横向
1
Computer model of a real-world system
5
Set of instructions for a computer
6
Software designed to harm computers
7
Point where user interacts with system
8
Global computer network
9
Pointer on a computer screen
纵向
1
Programs and applications on a computer
2
Encode data to keep it secure
3
Wired networking technology
4
Device that directs network traffic
10
Capacity of a data connection
11
Storage medium for digital data
12
Reusable block of code