presented by:
PRAVEEN KUMAR SHUKLA

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intrroduction
There are three types of Windows Mobile powered devices as:
• Pocket PC
• Pocket PC Phone Edition
• Smartphone
The main difference among them is touch-screen support: Pocket PC and Pocket PC Phone Edition powered devices have touch-screens, while Smartphones do not have touch-screens.
Pocket PCs comes with mobile versions of Office applications in addition to Microsoft Outlook Mobile. It generally powered with Wi-Fi technology that enable us to connect to the Internet when it is in wireless hotspot. We can browse the Internet by Pocket PC if it is powered with Wi-Fi and are in a wireless hotspot.
Pocket PC Phone enables us to perform everything that we do by a Pocket PC. The main advantage of Pocket PC Phone over Pocket PC is the wireless access of the Internet and cellular phone capabilities. If we have a Pocket PC Phone, we can access the Internet through wireless connection. There is no need to find a wireless hotspot.
A Smartphone has phone capabilities and comes with a smaller set of applications. We can develop and install third-party software for Smartphone. A Smartphone is a good choice for business users who need to check e-mail, keep track of their calendars, and take voice notes.
1.1 WINDOWS CE 5.0 :
Microsoft Windows CE is an open, scalable, 32-bit operating system (OS) that is designed to meet the needs of a broad range of intelligent hardware devices, from enterprise tools such as industrial controllers, communications hubs, and point-of-sale terminals to consumer products such as cameras, Internet appliances, and interactive televisions.
A typical Windows CE–based embedded run-time image is targeted for a specific use, often runs disconnected from other computers, and requires a small OS that has a bundled, deterministic response to interrupts.
Windows CE offers the application developer the ease and versatility of scripting languages, along with the versatile environment of the Microsoft Win32 application programming interface (API). It also offers bundled support for multimedia, Internet, LAN, and mobile communications and security services.
1.2 WINDOWS POWERED MOBILE DEVICES :
There are several kinds of Mobile Devices that run a version of the windows mobile operating system, which is optimized for memory-constrained devices. The current incarnations of this operating system are descendants of the original windows CE, and they include:
1.2.1 Pocket PC 2000/2002
This is a version of windows that is designed for small devices with small screens (commonly 240 * 320 pixels) and no keyboard. Instead of a keyboard, there is a stylus and touch-sensitive screen, five-way navigation button, and a few buttons.
The previous version was Pocket Pc 2000; many devices running the Pocket PC operating system can be upgraded to Pocket PC 2002. The .NET Compact Framework supports both Pocket PC 2000 and Pocket PC 2002 devices. Earlier versions of Windows CE are not supported by the .NET Compact Framework.
1.2.2 Pocket PC 2002 Phone Edition
This version of the pocket PC 2002 operating system is for Pocket PCs with integrated phones. They still have the same screen, but they support for voice telephony, SMS messaging, and General Packet Radio Service (GPRS) networking.
1.2.3 Microsoft Smartphone
Microsoft Smartphones look less like a palm-sized computer and more like a phone. The navigation button is still there, along with a few buttons, but the Smartphone also has a telephone numeric keypad.
1.2.4 Windows CE .NET 4.2 / Windows Mobile 2003
Windows CE .NET is the latest version of the Windows CE operating system. It is the first of the Windows CE family to include the .NET Compact Framework (the runtime has to be installed separately for Pocket PC and Pocket PC 2002). Microsoft has also packaged this mobile operating system and branded it as Windows Mobile 2003 (Commonly known as Packet PC 2003).
1.3 NETWORK ACCESS IN WINDOWS POWERED MOBILE DEVICES
There are many way that we can connect a mobile devices to the network. Network connection is used to transfer files between development machine and the mobile device, or network can be accessed by corporate intranet or the Internet. Network access is critical for .NET Compact Framework applications that must connect to a web service or SQL Server database.
Although .NET Compact Framework applications may need to connect to a network, the nature of wireless connectivity is in such a manner that continuous access is not guaranteed. The .NET Compact Framework was designed with this limitation in mind. For example, ADO.NET supports a disconnected data model: which connect to the network when we need to obtain some data, modify it in offline, and synchronize when we get network access.
1.3.1 Short-range Wireless Network Access
Wireless networking is used to connect device to the PC or a wireless access point using Blue tooth or Wi-Fi:
• Bluetooth is a short-range, low-power wireless cable replacement. If we have a Bluetooth-enabled mobile device and a Blue tooth-enabled PC then Active-Sync is used over Blue tooth. Some Blue tooth adapters include software to allow the PC to act as a LAN access point, and we can connect the mobile device to it as though it were a wireless router.
• Wi-Fi is a medium-range wired LAN replacement that’s also known by more technical names: 802.11g 802.11b was the first widely available wireless networking technology, originally introduced by Apple under the name Airport. It operates at speeds of up to 11 Mbps; 802.11a and 802.11g can run as fast as 54 Mbps.
Blue tooth and Wi-Fi are built into some pocket PC models, and adapters are available from many networking equipment manufactures. Bluetooth has a typical range of 10 meters. Wi-Fi has a range of between 50 and 100 meters, but its range can be extended dramatically (up to 50miles have been reported with the right equipment and a clear line of sight).
1.3.2 Long-range wireless network access
If Wi-Fi range is not sufficient for our need, we can use the other cellular networking protocols, such as General Packet Radio Service (GPRS) and code Division Multiple Access (CDMA).
1.3.3 General Packet Radio Service (GPRS)
This is a slow (up to 40 kbps) cellular protocol, But it is cheap (T-Mobile USA offers unlimited FPRS for as little as $ 20 a month).