横向
1
Input device with letter and number keys
3
Reusable block of code
4
Programs and applications on a computer
5
Connected group of computers
6
Interface for software to communicate
7
Portable personal computer
纵向
2
Temporary computer memory
3
Security system blocking unauthorized access
4
Computer that provides services to others
8
Point where user interacts with system
9
Smallest unit of digital data