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    SLCentralArticlesArticles Jan 19th, 2019 - 4:23 AM EST
    Tablet PC: An Overview
    Author: Harish Raju
    Date Posted: December 11th, 2001

    Other Tablet PCs


    The FIC AquaPAD is a compact, hand-held webpad intended for use in the home or in public areas. It offers the functions of Internet browsing, email, downloading MP3s, playing games, and multimedia audio/video, plus it includes a full suite of PIM apps (Calendar, Calculator, Note, Alarm Clock, Address Book, TODO List). User input is via touch panel and stylus. The device supports a choice of two operating systems: Midori Linux; and Windows CE.

    Here is a summary of the AquaPAD's specs...

    • CPU -- 500 MHz Transmeta 5400 "Crusoe"
    • System memory -- 128MB SO-DIMM SDRAM
    • Nonvolatile memory -- 32MB internal CompactFlash
    • Size -- 10.8 x 6.6 x 1.1 in
    • Weight -- 2.2 lb
    • Input mechanism - Stylus and Touch Panel
    • Display -- 8.4-inch TFT LCD with 800x600 pixel resolution
    • Expansion interfaces: Type II PCMCIA (CardBus) slot, CompactFlash slot, two USB ports
    • Audio -- AC'97 Audio Codec, with headphone/MIC jacks and built-in 1W speaker
    • Power supply -- four Lithium batteries
    • Network -- An 802.11b wireless LAN card is supported in the PCMCIA slot, as are modules for GSM, GPRS, and Bluetooth.


    The Geode WebPAD SP3GX01 system is a form factor reference design for a portable web access device, utilizing National's Geode GX1 processor and the Geode CS5530A I/O companion device. The system consists of three pieces: the base station, cradle and tablet.

    Base Station

    The base station provides the connectivity between the tablet and the Internet. The base communicates with the tablet via a wireless connection and the Internet via a wired source (telephone line, ISDN, etc.). The WebPAD SP3GX01 system has been tested with two types of base stations. The first type is based on the 802.11 protocol. A number of companies currently offer these types of base stations. The second type is a base station using a DECT-based protocol. Currently, National

    Semiconductor has a reference design for this type of base. Depending on the base station solution selected, a matching radio is used in the tablet.


    The cradle is used for drop-in charging and to hold the tablet for use as a more traditional desktop system. The cradle has pass through USB and auxiliary AC power.


    The 9.5 x 11.75 inch tablet has an interactive 10 inch DSTN screen (800 x 600) and weighs approximately 3 pounds. The tablet user interface is simple and easy to use. It consists of an interactive touch screen, scroll pad and several user-configurable buttons. Speakers and a microphone are built in. Additionally, several ports have been added to theside of the tablet to allow for connectivity to USB devices (i.e. external keyboard) and other types ofdevices such as headphones and an external microphone.

    All buttons on the tablet including the scroll pad are user-configurable, except the power button. The user can change the definition of the buttons by entering the system configuration mode. To allow the user to input text, whether for an e-mail, search criteria, or to enter a URL, a software keypad is implemented. The keypad works the same as a normal keyboard ttached to any computer. The user touches the screen just above the desired key and the letter appears next to the cursor. The software keypad is invoked using the QNX menu button or the keypad icon on the task bar. The default of the upper user-definable button is a toggle for the software keypad.

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    Article Navigation

    1. Introduction
    2. Features/Specs
    3. Other Tablet PCs
    4. Links And References

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