横向
1
Computer model of a real-world system
5
Temporary storage for fast access
6
Programs and applications on a computer
7
Function that calls itself
10
Temporary computer memory
纵向
2
Wired networking technology
3
Security system blocking unauthorized access
4
Input device with letter and number keys
8
Online data storage and computing
9
Encode data to keep it secure
11
Unit of digital information equal to 8 bits
12
Rules for data communication