横向
1
Rules for data communication
3
Wired networking technology
5
Reusable block of code
6
Encode data to keep it secure
8
Computer that provides services to others
9
Information processed by a computer
9
Organized collection of stored data
纵向
2
Programs and applications on a computer
3
Conversion of data into secret code
4
Input device with letter and number keys
7
Instructions written for a computer