横向
1
Security system blocking unauthorized access
2
Global computer network
4
Connected group of computers
7
Computer that provides services to others
13
Programming language for web browsers
纵向
2
Point where user interacts with system
3
Unit of digital information equal to 8 bits
5
Temporary computer memory
6
Wireless internet connection
8
Set of instructions for a computer
9
Encode data to keep it secure
10
Smallest unit of a digital image
11
Information processed by a computer
12
Pointer on a computer screen