横向
1
Function that calls itself
5
Smallest unit of digital data
6
Temporary storage for fast access
8
Point where user interacts with system
纵向
2
Rules for data communication
3
Online data storage and computing
4
Computer model of a real-world system
7
Pointer on a computer screen
9
Process of finding and fixing code errors
10
Input device with letter and number keys
11
Convert code into executable program
12
Named storage location in code