1. Key used to insert the underscore character
2. Keys used for numerical input on a keypad
3. Key used to insert the semicolon character
4. Key used to move the cursor to the beginning of a line
5. Key used to delete the character before the cursor
6. Keys used to enclose characters or symbols
7. Key used to insert the asterisk or multiplication symbol
8. Key used to toggle capitalization of all letters
9. Key used to insert the equal sign
10. Key used to insert the hyphen or minus character
11. Keys used to execute specific functions or commands
12. Key used to insert the plus sign
13. Key used to modify the function of other keys
14. Key used to insert the colon character
15. Key used to toggle between overtype and insert mode
16. Key used to input a new line or confirm a command
17. Key used to move the cursor to the end of a line
18. Key used to print the screen or current window
19. Key used to cancel or exit a function or program
20. Key used to insert the forward slash character
21. Key used to insert a blank space
22. Key used to change the case of letters