|
 |
Current Topics In Mobile Computing
Pocket PC
Platform
Description
Microsoft Pocket PC platform is the latest version of its Window CE
operating system. The first generation of Windows CE-based devices was
labeled PC companions because they relied heavily on "host" PCs
for applications and data. In contrast, the enhanced capacity of the latest
operating system allows for built-in pocket versions of Microsoft Internet
Explorer, Microsoft Outlook, Microsoft Word and Excel as well as multimedia
capabilities of desktop and notebook PCs. According to the company, a number
of technical advances have been incorporated into the platform, including
- A simplified user interface
- Greater speed and reliability
- Built-in industry-standard expansion slots that provide greater
extendibility via CompactFlash cards, storing up to 320MB of data
Specifications/Hardware Characteristics
- 16-32MB of RAM
- 32 bit processor up to 206MHz
- 16-bit colour screens
- Displaying more than 65,000 colours
- 320x240 resolution
- ClearType display technology
- Rechargeable lithium ion battery
- Back-up battery
- CompactFlash slot, stores up to 320MB of data
- Infrared
Security
For most enterprises security is of major importance and concern. The
Pocket PC platform supports the following security options:
- Automatic device password for accessing a private network information
- Industry-standard 40-bit or 128-bit encryptions or corporate standard
encryption technique that can be plugged into the industry-standard
CryptoAPI to protect data from unauthorized access.
- Secure Sockets Layer (SSL) and Private Communications Technology (PCT)
to secure Web site authentication.
Scalability
The challenge faced by information-centric enterprises is how to handle
more and more data. Pocket PC makes it easier to capture data. Its support
of the CompactFlash industry standard is a key component to capturing data
and storing data, connectivity, and many peripherals for data entry. The
Pocket PC has a wide range of CompactFlash cards, including:
- CompactFlash storage card (Kingston, Lexar, PreTech, SanDisk, etc.)
- IBM 170 and 340 MicroDrive
- 56KB CompactFlash modem
- Socket CompactFlash Digital Phone Card, wireless WAN: CDMA
- Wireless Bluetooth CompactFlash card
- GPS Compact Flash card
The following also allow data flow from Pocket PC devices:
- CompactFlash barcode readers
- Built-in microphones
- Fast infrared connections
- Wireless phone connections
- Plug-in keyboards
- 56KB modems
- High-speed LAN connections
Usability
To enhance the functionality of business applications, Pocket PC offers
a wide range of capabilities.
- Multitasking is a fundamental OS capability that allows the device to
perform more than one task at a time. For example, the device can
download emails with attachments from a server while the user is using a
Web-based application.
- The high-resolution colour screen makes viewing maps, digital photos,
schematics blueprint, and Web-page and multimedia applications ideal.
- A built-in audio recorder, which works like a digital Dictaphone, can
record oral notes.
- Barcode scanning, via a Socket In-Hand Scanner, plugs into the Type II
CompactFlash slot found on most Pocket PC.
Synchronization and Connectivity Options
ActiveSync® 3.1 technology enables continuous updating of changes when
the device is connected to a PC. Synchronization and connectivity options,
include the following:
- Auto on-connect sync
- Unattended installation kit for desktop sync installation
- Sync over Infrared to Windows, 95/98/2000
- Sync over USB at USB data rate
- Data-ready cell phones can be used as a modem when connected to a
CompactFlash slot or an infrared port on infrared-enabled phones
- LAN connectivity is available via CompactFlash slot
- High Speed Infrared connectivity is available to sync with PCs,
connect to phones, and exchange contact information with other handheld
devices
- 56KB CompactFlash modems are available to provide similar access to
data-ready cell phones, but at higher speeds
Pocket PC Compared to Palm OS
Features
|
Pocket PC
|
Palm OS
|
OS
|
3.0
|
3.1-35
|
RAM
|
16-32MB
|
2-8MB
|
ROM
|
16-32MB
|
2-16MB
|
Speed
|
133MHz
|
16-20MHz
|
IrDA
|
Y115.2kb
|
Yes
|
Serial
|
Yes
|
Yes/optional
|
USB
|
Yes/optional
|
Yes/optional
|
Screen
|
240x320
|
160x160
|
Battery
|
Li-Ion
|
2AAA or Li-Ion
|
Device Price
|
$499 to $599
|
$149- $350
|
As the above comparative table illustrates the Palm OS is more
suited for accomplishing simple tasks --- maintaining list of contacts,
scheduling meetings and tracking tasks – than a productivity device, due
to its limited CPUs, storage and expansion capabilities. In contrast, the
PocketPC has the capacity to do more, and more expansion capabilities than
most Palm OS devices. Of course, Palm Pilot and Palm OS is moving in the
direction of more functionality - based on simplicity but moving towards
more functionality for the enterprise. Pocket PC followed the reverse route.
Information based on the following sources:
http://pencomputing.com/WinCE/PPC/PocketPC.html
http://www.pencomputing.com/palm/palm_specs.html
Manufactures of Pocket PC Devices
For Pocket PC Applications in Field Service and Customer Service, Click
here.
* Source: Microsoft website (June 2000)
For more information: www.microsoft.com/mobile/enterprise/
|
|