By Puthiyakkal PrinceVisit http://www.tech2get.blogspot.com

1By Puthiyakkal Prince (www.tech2get.blogspot.com)

2By Puthiyakkal Prince (www.tech2get.blogspot.com)

Jeff Hawkins

3By Puthiyakkal Prince (www.tech2get.blogspot.com)

INTRODUCTIONPalm OS is a computer operating system that

provides a software platform for the Palm series of handheld personal digital assistants(PDAs) made by Palm inc.

The Palm pilot 1000 was the first Palm OS based PDA that was launched on MARCH 1996.

4By Puthiyakkal Prince (www.tech2get.blogspot.com)

Architecture of Palm OSAt the highest level, the architecture of the

Palm OS device, can be broken down into three layers : Application, Operating System, and Hardware.

5By Puthiyakkal Prince (www.tech2get.blogspot.com)

Palm OS system software is designed around a 32-bit architecture.

Palm OS does not use a traditional flat file system. Data is stored in memory chunks called records, which are grouped into databases.

Palm OS applications are generally single-threaded, event-driven programs. Only one program runs at a time.

6By Puthiyakkal Prince (www.tech2get.blogspot.com)

VERSIONSDATE Version

1996 Palm OS 1.0 (160x160 monochrome output displays )

1997 Palm OS 2.0 ( This version adds TCP/IP network, network HotSync, and display backlight support.)

1998 Palm OS 3.0 (This version adds IrDA infrared and enhanced font support. )

1999 Palm OS 3.1, 3.2, 3.3 (network HotSync support, Web Clipping support, infrared hot syncing)

2000 Palm OS 3.5 3.52 - need at least 16 MHz CPU and 8 mbyte RAM

2001 Palm OS 4.0 Bluetooth able

2002 Palm OS 4.1 bug fixes

7By Puthiyakkal Prince (www.tech2get.blogspot.com)

Date Version

2002 June Palm OS 5.0 bigger Display, multimedia and telephony functions, 128 bit encryption for network connections and security applications

2004 Jan. Palm OS 6.0 (cobalt) programmed from the scratch, new security features, better support of WLAN

2004 Sept. Palm OS 6.1 (Cobalt) available for developers and device manufacturers

2007 Feb Access Linux Platform 1.0

2009 April Palm web OS ( yet to be launched )

8By Puthiyakkal Prince (www.tech2get.blogspot.com)

Built in Apps for Palm OSAddress book : The Palm's Address program stores contact

information, keyed by any of several user-definable categories.

9By Puthiyakkal Prince (www.tech2get.blogspot.com)

Calculator Calc turns the Palm into a standard 4-

function pocket calculator with three shades of purple and blue buttons contrasting with the two red clear buttons. It supports square root and percent keys and has one memory.

10By Puthiyakkal Prince (www.tech2get.blogspot.com)

Datebook : Date Book shows a daily or weekly

schedule, or a simple monthly view. The daily schedule has one line per hour, between user-selected begin and end times

11By Puthiyakkal Prince (www.tech2get.blogspot.com)

HotSync : HotSync integrates with the user's PC.

Usually activated by a press of the physical HotSync button on the Palm's cradle (a dock station), this application communicates with various conduits on the desktop PC to install software, backup databases, or merge changes made on the PC or the handheld to both devices

12By Puthiyakkal Prince (www.tech2get.blogspot.com)

Memo Pad: Memo Pad can hold notes of up to 4,000

characters, keyed to user-configurable categories. Memos are ordered in two ways: alphabetically, and manually

13By Puthiyakkal Prince (www.tech2get.blogspot.com)

To do list : To do list creates personal reminders and

prioritizes the things the user has to do. Each To Do List item may also have: a priority, categories

14By Puthiyakkal Prince (www.tech2get.blogspot.com)