横向
1
Connected group of computers
4
Programming language for web browsers
7
Function that calls itself
8
Point where user interacts with system
10
Request for information from a database
11
Pointer on a computer screen
12
Short-range wireless technology
纵向
2
Organized collection of stored data
3
Ordered collection of data elements
5
Programs and applications on a computer
6
Global computer network
9
Computer model of a real-world system