palm OS
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Transcript of palm OS
By Puthiyakkal PrinceVisit http://www.tech2get.blogspot.com
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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.
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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.
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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.
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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
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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 )
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Built in Apps for Palm OSAddress book : The Palm's Address program stores contact
information, keyed by any of several user-definable categories.
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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.
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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
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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
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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
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