横向
1
Series of commands for a computer
5
Connected group of computers
7
Computer model of a real-world system
8
Device that directs network traffic
10
Wired networking technology
12
Rules for data communication
纵向
2
Reusable block of code
3
Function that calls itself
4
Conversion of data into secret code
6
Information processed by a computer
9
Short-range wireless technology
11
Portable personal computer
13
Interface for software to communicate