Good question.
The main difference is the full integration between device and the=20
Wireless mobile network services and infrastructure 2g 2.5g or 3g like=20=
GPRS and W-CDMA (Not WI-FI as it still lacks of basic services for a=20
real mobile network) that today Pocket PC and Palm OS (and probably=20
still SmartPhone) are not yet capable.
So is not a matter of hardware and software features but a matter of=20
real integration.
There is a huge difference between a m-services enabled SmartPhone and=20=
a PDA with wireless connection and some voice call functionalities.
Under the interface point of view Symbian defines 3 different class of=20=
mobile-network enabled devices:
- advanced mobile phones with main input from keypad
- pen-based mobile phones in tablet form factor
- keyboard-based mobile phones with large screens
http://www.symbian.com/technology/devices.html
So when I am talking about PDAs I am thinking about devices that are=20
not deeply integrated with a mobile network.
So PDA should be pen-based
Luned=EC, 28 apr 2003, alle 20:30 Europe/Rome, Ken Chang ha scritto:
>
> smart phones and PDAs, what do you really mean?
>
> what I could think of goes down to the elements,
> - CPU:
> smart phones: ARM (Qualcomm, F505i?), SH (F504i, A5303H, A5305K)
> PDAs: DragonBall, ARM, XScale
> - OS:
> smart phones: Symbian/Nokia, Palm, Microsoft, Linux?
> PDAs: Palm, Microsoft, Linux
> - air interface:
> smart phones: GSM, cdma, PHS; Bluetooth, IR
> PDAs: GSM, cdma, PHS, WLAN; ...
> cf. IP phones: WLAN; ...
>
> what make difference:
> - display size, QVGA? (probably not)
> - keypad, touch-screen? (probably ... not)
> - size, weight? (not sure)
> - "PDA" software?
> - built-in integrated mobile cellular air interface? (this?)
> - or ... manufacturer?
>
>
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Received on Sat May 3 21:26:40 2003