Compaq 1610 Reference Manual page 30

The application launch keys provide a fast and convenient way to
get to many of your favorite programs. To start a program, hold
down the key and press the number key below the icon for the
program you want to start. (For example, press
Pocket Word.) For instructions on using a program once it's
started, see The Handheld PC Companion or the online Help
included with the program.
The following table lists the application launch keys and their
corresponding icons and programs.
2
3
4
5
6
7
8
9
0
Once a program is open, pressing
launch key will quickly switch you to that application.
Pocket Word
Pocket Excel
Pocket PowerPoint
Calendar
Contacts
Tasks
Inbox
World Wide Web (www)
Voice Memo
to start
+ the application's