横向
1
Physical components of a computer
5
Computer model of a real-world system
6
Online data storage and computing
7
Capacity of a data connection
12
Rules for data communication
纵向
2
Request for information from a database
3
Temporary computer memory
4
Programs and applications on a computer
8
Convert code into executable program
9
Temporary storage for fast access
10
Encode data to keep it secure
11
Smallest unit of digital data