Identify the most likely role in an accounting system played by each of the numbered items 1 through?

A. Source documents
B. Input devices
C. Information processors
D. Information storage
E. Output devices


1. Bar code reader
2. Filing cabinet
3. Bank statement
4. Computer scanner
5. Computer keyboard
6. Zip drive
7. Computer monitor
8. Invoice from a supplier
9. Computer software
10. Computer printer
11. Digital camera
12. MP3 player

A:3,8
B:4,5,9
C:1,
D:2,6,
E:10,7,11,12