Palm OS for Not Yet Techies

"Computer Careers: With the Operating System of the Famous Hand Held Computer"

by Richard Stooker, President Info Ring Press and author of Secrets of Changing to a Computer Career

Palm OS is the operating system of the Palm pilot series of handheld PDAs (Personal Digital Assistant). The Palm was designed to be a satellite or extension of your desktop PC, not a computer in its own right. The Palm OS is application event-driven. You must finish with one application and close it out before opening another.

The Palm OS has pre-emptive multitasking kernel - the User Interface Application Shell (UIAS) displays only the one application at a time - there're no multithreaded applications. It has a 32 bit architecture.

The Palm OS comes with:

Dates
Address Book
To Do List
Memo Pad
Calculator
Password Protection

It comes with communication interfaces to infrared transmission devices, TCP/IP and barcode recognition scanners. Use:

Serial - has Serial Manager
TCP/IP
Bluetooth
Web clipping
Telephony
IrDA -- Infrared Data Association protocol

It uses Virtual File System (VFS) and a secondary storage card. Its memory is divided into Dynamic RAM and Storage RAM.

For developing applications for the Palm OS, Palm supports Metrowerks' CodeWarrier as its official developer kit using Macintosh or Windows

You can use C, C++, assembler or scripting. The Emulator (POSE) helps you debug.

The Palm OS does not make assumptions about the hardware that will be running it, since so many different makes and models are now available. So use the POS API instead of making direct calls to hardware.

Next: PalmPilot

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