| 1. | Files left open after software fails | |
| 2. | Space bar | |
| 3. | Fkeys | |
| 4. | Letters - lower case (abcdefghijklmnopqrstuvwxyz) upper case (ABCDEFGHIJKLMNOPQRSTUVWXYZ) | |
| 5. | Numbers 0123456789 | |
| 6. | Special keys (~!@#$%^&*()_+) | |
| 7. | Alt | |
| 8. | Ctrl | |
| 9. | Esc | |
| 10. | Tab/Backtab | |
| 11. | Shift | |
| 12. | Caps Lock | |
| 13. | Arrow keys | |
| 14. | Numeric keypad | |
| 15. | Enter | |
| 16. | Insert | |
| 17. | Del | |
| 18. | Home | |
| 19. | key combinations | |
| 20. | shortcut keys |