横向
1
Computer model of a real-world system
6
Function that calls itself
7
Data type with true or false values
9
Connected group of computers
10
Wired networking technology
11
Device that directs network traffic
纵向
1
Computer that provides services to others
2
Encode data to keep it secure
2
Conversion of data into secret code
3
Rules for data communication
4
Software designed to harm computers
5
Instructions written for a computer
8
Wireless internet connection