Mobile Devices


   Kangseok Kim



What is the difference between the terms Handheld PCs, Pocket PCs, and Windows CE?. 1

Mobile Devices. 1

1. Pocket PC.. 1

1.1  Jornada HP Technical Specs. 2

1.2 Casio E-125 Technical Specs. 2

1.3 Casio EM-500 Technical Specs. 2

1.4 Compaq iPAQ Technical Specs. 2

2. Handheld PC.. 3

2.1 Hardware Features. 3

2.2 Networking and Connectivity. 3

3. Palm.. 3

Comparision. 4


What is the difference between the terms Handheld PCs, Pocket PCs, and Windows CE?


Pocket PC and Handheld PC refer to specific types of mobile devices while Windows CE is the operating system that is at the heart of all Handheld PCs and Pocket PCs.


-          A Pocket PC is a class of device that has a quarter VGA(320x240) screen and contains a consistent package of integrated applications, wireless and wired connectivity options, and Win32 APIs for developers.


-          A Handheld PC is a class of devices that have half VGA(640x240) or full size(640x480 or 800x600) screens with or without an integrated keyboard and contains a consistent package of integrated applications, wireless and wired connectivity options, and Win32 APIs for developers.


-          Windows CE is a compact, modular operating system that was designed from the ground up to support a broad range of client devices combining the flexibility and reliability of Windows with real-time processing support. Some examples of Windows CE-based devices that Microsoft is defining include the Handheld PC, Pocket PC, X-Box, WebTV, MSN Web Companion, eBook Reader, Windows-based Terminal, and Smart Phone.


Mobile Devices

1. Pocket PC 

1.1  Jornada HP Technical Specs


-          Processor :  133 MHz 32-bit Hitachi processor

-          Memory :  16 MB RAM (HP Jornada 540/545)

    32 MB RAM (HP Jornada 548)

    16 MB ROM

-          Display :  240 x 320 pixels LCD rich color display

Microsoft ClearType display technology

-          Input :  Pen-and-touch interface (stylus included)

             Handwriting recognition software

             On-screen keyboard

             Four user-configurable quick launch screen icons

             Two quick keys (Record and Scroll/Action)

             Notification LED

-          Battery : Built-in Lithium-Ion rechargeable battery

              Eight hours of battery life

-          Input/Output : IrDA infrared port

                   RS232 serial port

                   USB cradle

                   CompactFlash Type I card slot

                   AC input jack

                   Stereo earphone jack

-          Sound : Audio speaker and microphone

            Built-in voice recorder

            Digital audio player compatible

-          Size and Weight : 5.2 x 3.1 x 0.6 in (13 x 7.8 x 1.6 cm)

9.1 oz (260 g) with battery


1.2 Casio E-125 Technical Specs


-          Display : 240 x 320, Bright back-lit, TFT liquid crystal, 65,536-color or monotone

-          CPU : 131 MHz

-          Interface : Serial: RS232C, 115.2 Kbps max. , IrDA 1.0 (115.2bps max.)

-          Memory : 32MB RAM, 16MB ROM

-          Built-in : Type I/II (3.3V) CompactFlash Slot

-          Power : JK210LT Lithium-ion battery (provides approx 6 hours use) Shortened by use of

            CompactFlash card, modem and backlight

            Back-up Lithium CR2032 (approximately 5 years)

            AC Adapter AD-C50200U for direct power and battery recharging.

-          Connectivity : Direct Connectivity: Use the included serial port cradle for

Synchronization with your PC of e-mail, files, Internet channels,

Contacts, Calendar, and Notes

-          Weight : 9.0 oz.

-          Size : Height .3/4" x Width 3 1/4" x Depth 5 1/8"


 1.3 Casio EM-500 Technical Specs


-          Display : 240 x 320: TFT color LCD (65,536 colors)

-          CPU : VR4122

-          RAM : 16 MB

-          Power : Lithium-ion rechargeable battery for 6 hours use(depending on usage)


 1.4 Compaq iPAQ Technical Specs


-          Processorr : 206 MHz Intel Strong ARM 32-bit Processor

-          Memory : 32 MB RAM

             16 MB ROM

-          Display : Color reflective TFT liquid crystal display for indoor and outdoor viewing

    (4,086 colors)

-          Touch Screen : Yes

-          Resolution : 240 x 320

-          Pixel Pitch : 0.24 mm

-          Viewable Image : 2.26"wide x 3.02" tall

-          Input/Output Ports : USB communications port: Connect to docking cradle or directly to

                        PC via USB cable CompactFlash (CF) card optional upgrade jacket

-          Infrared port : IrDA standard, 115 Kb per second


2. Handheld PC

2.1 Hardware Features


 - Touch-type keyboards

 - Touch screens activated by stylus

 - Instant on/off.

 - Battery life for a full work day, especially when wirelessly connected

 - 32 MB in-device memory storage (RAM)

 - 56 Kbps modems

 - Expandable memory support for CompactFlash and PC cards

 - Wireless-enabled with support for LAN, WAN, and PAN networking

 - Peripheral support for bar code readers, SmartCards, GPS receivers, and more

 - Half, full-size VGA and Super VGA screens.

 - Support for alternative pointing devices


2.2 Networking and Connectivity


Serial connections, USB, dial-up modem, Remote Access Server(RAS), and Internet e-mail.


Connectivity Options:

-          Wired and wireless Ethernet LAN support (via appropriate Ethernet LAN PC card).

-          Serial line interface protocol(SLIP) connectivity for wireless Cellular Digital Packet

Data (CDPD) communications.

-          Infrared connections.

-          Data-ready cell phone (GSM, CDMA) connections using digital phone cards.

-          High speed Metricom Ricochet mobile data access service.

-          E-mail directly with a server using either the IMAP4 or POP3 protocol.

-          Personal Area Networks (Bluetooth) when it becomes commercially available.

-          GPRS cell phone connections when it becomes commercially available.


3. Palm


-          Very easy to use

-          Simple, effective PIM applications (Address Book, Date Book, To Do List)

-          Simple handwriting recognition program (Graffiti)

-          Relatively long battery life

-          Most models use serial interface only (no USB)

-          Limited color support (Palm IIIc in 8-bit color only)

-          Requires third-party application to synchronize data with Outlook




-         Networking

-         Performance

-         Connectivity

-         Input





      Pocket PC

      Handheld PC


Full E-mail, including POP3 and IMAP4 standards  

E-mail with Attachments Review Microsoft Word and Excel attachments and HTML pages; create and accept meeting requests. Microsoft Pocket Word, Pocket Excel, Pocket Outlook, and Pocket Internet Explorer included.

E-mail directly with a server using either the IMAP4 or POP3 protocol.





  Full Web Browsing

-          Microsoft Pocket Internet

Explorer included.

-          Support HTML, XML, XSL


-          Compatible with

Internet Explorer 

      v4.0 on the desktop

-          Supports XML/XSL for data-based web applications

-          DHTML supported for forms-based applications in the browser

-          Display animated 


Web Clipping (Palm VII only), and text-based web browsing only.







     Pocket PC

    Handheld PC


Color and Screen Resolution

320x240 16-bit active matrix display with 65,000 colors and 76,800 pixels.

640x240, full-size VGA and Super VGA screens

160x160 8-bit, with 256 colors (Palm IIIc only) and 25,600 pixels.

On-board memory



8MB or less

Processor Speed

32-bit processor up to 206MHz

32-bit processor 206MHz

20MHz or less







       Pocket PC

      Handheld PC







USB Connection





USB access via serial port adapter. No Windows 2000 support as of this writing       







     Pocket PC

     Handheld PC


Natural Handwriting Recognition

Natural Handwriting Recognition including Transcriber.

-          Touch-type keyboards

-          Touch screens

      activated by stylus


No, must learn Graffiti language.