横向
1
Computer model of a real-world system
5
Computer that provides services to others
6
Organized collection of stored data
9
Data type with true or false values
10
Rules for data communication
纵向
2
Point where user interacts with system
3
Unit of digital information equal to 8 bits
4
Connected group of computers
7
Storage medium for digital data
8
Online data storage and computing
11
Temporary computer memory