横向
1
Information processed by a computer
3
Device that directs network traffic
4
Convert code into executable program
7
Pointer on a computer screen
10
Point where user interacts with system
11
Global computer network
12
Set of instructions for a computer
纵向
2
Reusable block of code
5
Software designed to harm computers
6
Physical components of a computer
8
Function that calls itself
9
Computer model of a real-world system