Windows Mobile

Microsoft's work on handheld portable devices began with research projects in 1990, with the work on Windows CE beginning in 1992.[6] Initially, the OS and the user interface were developed separately. With Windows CE being based on Windows 95 code and a separate team handing the user interface which was codenamed WinPad (later Microsoft At Work for Handhelds).[6] Windows 95 had strong pen support making porting easy; with some saying "At this time, Windows 95 offers outstanding pen support. It is treating pens right for the first time."[7] WinPad was delayed due to price and performance issues,[8] before being scrapped in early 1995 due to touchscreen driver problems relating to WriteTouch technology, made by NCR Microelectronic Products.[7] Although WinPad was never released as a consumer product, Alpha builds were released showcasing many interface elements.[9] During development of WinPad a separate team worked on a project called Pulsar; designed to be a mobile communications version of WinPad, described as a "pager on Steroids".[6] This project was also canceled around the same time as WinPad. The two disbanded groups would form the Pegasus project in 1995. Pegasus would work on the hardware side of the Windows CE OS, attempting to create a form factor similar to a PC-esque PDA like WinPad, with communications functionality like Pulsar. Under the name Handheld PC, a hardware reference guide was created and devices began shipping in 1996, although most of these device bore little resemblance to the goal of a pen-based touchscreen handheld device.[10] A specification for a smaller form factor under the name Palm-size PC was released in 1998.[10]

Pocket PC 2000 Today Screen

Pocket PC 2000, originally codenamed "Rapier",[11] was released on April 19, 2000, and was based on the Windows CE 3.0 kernel.

It was the debut of what was later dubbed the Windows Mobile operating system, and meant to be a successor to the operating system aboard Palm-size PCs. It retained backwards compatibility with such Palm-size PC applications. Pocket PC 2000 was intended mainly for Pocket PC devices; however, several Palm-size PC devices had the ability to be updated also. While, several Pocket PC 2000 phones were released, Microsoft's smartphone hardware platform was not yet created. The only resolution supported by this release was 240×320 (QVGA). Removable storage card formats that were supported were CompactFlash and MultiMediaCard. At this time Pocket PC devices had not been standardized with a specific CPU architecture. As a result, Pocket PC 2000 was released on multiple CPU architectures; SH-3, MIPS, and ARM. Infrared (IR) File beaming capability was among the original hardware features.

The original Pocket PC operating system had similar appearance to Windows 98, Windows Me, and Windows 2000 operating systems. Crucially, unlike the interface on predecessing Palm-size PC, the Pocket PC had a less cluttered interface more suitable for a mobile device.[10] Pocket PC 2000 is unsupported as of September 10, 2007.

This initial release had multiple built-in applications,[12] many of them similarly branded to match their desktop counterparts; such as Microsoft Reader, Microsoft Money, Pocket Internet Explorer and Windows Media Player. A version of Microsoft Office called Pocket Office was also bundled and included Pocket Word, Pocket Excel and Pocket Outlook. Notes, a note-taking app saw its first release and would be supported by most later versions of Windows Mobile. Intelligent character recognition support allowed Notes to distinguish styles of handwriting to be learned by the OS during processing to improve accuracy and recognition levels.

Pocket PC 2002 Today Screen

Pocket PC 2002, originally codenamed "Merlin",[11] was released in October 2001, and like Pocket PC 2000, was based on the Windows CE 3.0 kernel.

Although targeted mainly for 240×320 (QVGA) Pocket PC devices, Pocket PC 2002 was also used for Pocket PC phones, and for the first time, smartphones.[13] These Pocket PC 2002 Smartphones were mainly GSM devices. With future releases, the Pocket PC and Smartphone lines would increasingly collide as the licensing terms were relaxed allowing OEMs to take advantage of more innovative, individual design ideas. Aesthetically, Pocket PC 2002 was meant to be similar in design to the then newly released Windows XP. Newly added or updated programs include[14][15][16][17] Windows Media Player 8 with streaming capability; MSN Messenger, and Microsoft Reader 2, with Digital rights management support. Upgrades to the bundled version of Office Mobile include a spell checker and word count tool in Pocket Word and improved Pocket Outlook. Connectivity was improved with file beaming on non-Microsoft devices such as Palm OS, the inclusion of Terminal Services and Virtual private networking support, and the ability to synchronize folders. Other upgrades include an enhanced UI with theme support and savable downloads and WAP in Pocket Internet Explorer.

Windows Mobile 2003 for Pocket PC Today Screen

Originally called Pocket PC 2003 but later renamed Windows Mobile 2003, originally codenamed "Ozone",[11] was released on June 23, 2003, was based on the Windows CE 4.x kernel, and was the first release under the Windows Mobile banner.

It came in four editions: "Windows Mobile 2003 for Pocket PC Premium Edition", "Windows Mobile 2003 for Pocket PC Professional Edition", "Windows Mobile 2003 for Smartphone" and "Windows Mobile 2003 for Pocket PC Phone Edition". The last was designed especially for Pocket PCs which include phone functionalities. The Professional Edition was used in Pocket PC budget models. It lacked a number of features that were in the Premium Edition, such as a client for L2TP/IPsec VPNs. Windows Mobile 2003 was powered by Windows CE 4.20.

Communications interface were enhanced with Bluetooth device management, which allowed for Bluetooth file beaming support, Bluetooth headset support and support for Bluetooth add-on keyboards. A pictures application with viewing, cropping, e-mail, and beaming support was added. Multimedia improvements included MIDI file support as ringtones in Phone Edition and Windows Media Player 9.0 with streaming optimization. A puzzle game titled Jawbreaker is among the preinstalled programs. GAPI was included with this release to facilitate the development of games for the platform.[18]

Other features/built-in applications included the following:[19] enhanced Pocket Outlook with vCard and vCal support, improved Pocket Internet Explorer and SMS reply options for Phone Edition.

Windows Mobile 2003 Second Edition, also known as "Windows Mobile 2003 SE", was released on March 24, 2004, was based on the Windows CE 4.x kernel, and first offered on the Dell Axim x30. This was the last version which allowed users to back up and restore an entire device through ActiveSync.

This upgrade allows users to switch between portrait and landscape modes and introduces a single-column layout in Pocket Internet Explorer. It includes support for Wi-Fi Protected Access (WPA) and new screen resolutions: 640×480 (VGA), 240×240, and 480×480.

Windows Mobile 5.0 Today Screen

Windows Mobile 5.0, originally codenamed "Magneto",[11] was released at Microsoft's Mobile and Embedded Developers Conference 2005 in Las Vegas, May 9–12, 2005, and was based on the Windows CE 5.0 kernel.

Microsoft offered mainstream support for Windows Mobile 5 through October 12, 2010, and extended support through October 13, 2015.[20] It was first offered on the Dell Axim x51. It used the .NET Compact Framework 1.0 SP3, an environment for programs based on .NET. Windows Mobile 5.0 included Microsoft Exchange Server "push" functionality improvements that worked with Exchange 2003 SP2.[21] The "push" functionality also required vendor/device support.[22] With AKU2 software upgrades all WM 5.0 devices supported DirectPush.

Other features included an enhanced battery-saving capability called persistent storage capability. Previously up to 50% (enough for 72 hours of storage) of battery power was reserved just to maintain data in volatile RAM. This continued the trend of Windows-based devices moving from using RAM as their primary storage medium to the use of a combination of RAM and flash memory (in use, no distinction between the two is obvious to users). Programs and frequently accessed data run in RAM, while most storage is in the flash memory. The OS seamlessly moves data between the two as needed. Everything is backed up in the flash memory, so unlike prior devices, WM5 devices lose no data if power is lost. New to 5.0, OS updates were released as adaptation kit upgrades, with AKU 3.5 being the final released.

Windows Mobile 5 comes with Microsoft Office Mobile which includes PowerPoint Mobile, Excel Mobile with graphing capability and Word Mobile with the ability to insert tables and graphics. Media management and playback was enhanced with Picture and Video package, which converged the management of videos and pictures and Windows Media Player 10 Mobile. Among new hardware features were enhanced Bluetooth support, default QWERTY keyboard-support and a management interface for Global Positioning System (GPS). Improvements were made to ActiveSync 4.2 with 15% increased synchronization speed. Business customers benefited from a new error reporting facility similar to that present in desktop and server Windows systems. Caller ID now supports photos so a user can apply an image to each contact to show when a call is received. DirectShow was also natively added. This release was the first to include DirectDraw with hardware acceleration, replacing the deprecated graphics component of GAPI.[18]

Windows Mobile 5.0 requires at least 64 MB of ROM (it's advisable to have 64 MB of RAM), and the device must run an ARM compatible processor such as the Intel XScale or the Samsung and Texas Instruments ARM compatibles.[23]

Windows Mobile 6, formerly codenamed "Crossbow",[11] was released on February 12, 2007[24] at the 3GSM World Congress 2007, and was based on the Windows CE 5.2 kernel.

It comes in three different versions: "Windows Mobile 6 Standard" for Smartphones (phones without touchscreens), "Windows Mobile 6 Professional" for Pocket PCs with phone functionality, and "Windows Mobile 6 Classic" for Pocket PCs without cellular radios.[25]

Windows Mobile 6 is powered by Windows CE 5.0 (version 5.2) and is strongly linked to the then newly introduced Windows Live[26] and Exchange 2007 products. Windows Mobile 6 Standard was first offered on the Orange's SPV E650,[27] while Windows Mobile 6 Professional was first offered on the O2's Xda Terra.[28] Aesthetically, Windows Mobile 6 was meant to be similar in design to the then newly released Windows Vista. Functionally, it works much like Windows Mobile 5, but with much better stability.

Along with the announcement of Office Mobile 6.1[29] with support for Office 2007 document formats (pptx, docx, xlsx); OneNote Mobile, a companion to Microsoft Office OneNote was added to the already installed version. In addition to the newly included programs with Office Mobile improvements were made to existing applications. Such as HTML email support in Outlook Mobile. A large number of Windows Mobile users are enterprise users business environments were targeted. With Server Search on Microsoft Exchange 2007, Out of Office Replies with Microsoft Exchange 2007, and search ability for contacts in an Exchange Server Address Book being implemented. To aid development for programmers, .NET Compact Framework v2 SP2 is now preinstalled with the OS. Developers and users also have access to Microsoft SQL Server 2005 Compact Edition for storage and retrieval of information. AJAX, JavaScript, and XMLDOM support were added to Internet Explorer Mobile along with improved devicewide Internet Sharing. Communication abilities were further enhanced with a new Microsoft Bluetooth Stack and VoIP (Internet calling) support with AEC (Acoustic Echo Cancelling) and MSRT audio codec.

To improve security Microsoft added Storage Card Encryption so that encryption keys are lost if device is cold-booted. Further updates both, security and feature, can now also be provided using Operating System Live Update[30]

Among other improvements:[31] 320×320 and 800×480 (WVGA) screen resolution support (The S01SH or "Em One" by Sharp was the first and only device to have an 800×480 screen on WM5),[32] Improved Remote Desktop access[33] (available for only certain Pocket PCs),[34] Customer Feedback option,[35] Smartfilter for searching within programs and Unlicensed Mobile Access (UMA) support for select operators

Windows Mobile 6.1 Today Screen

Windows Mobile 6.1 was announced April 1, 2008, and was based on the Windows CE 5.x kernel.

It is a minor upgrade to the Windows Mobile 6 platform with various performance enhancements and a redesigned Home screen featuring horizontal tiles that expand on clicking to display more information, although this new home screen is featured only on Windows Mobile Standard edition. This was not supported in the Professional edition.[36] Several other changes such as threaded SMS, full page zooming in Internet Explorer and 'Domain Enroll' were also added, along with a "mobile" version of the Microsoft OneNote program and an interactive "Getting Started" wizard. Domain Enroll is functionality to connect the device to System Center Mobile Device Manager 2008, a product to manage mobile devices.[37] Windows Mobile 6.1 also had improved bandwidth efficiency in its push-email protocol ActiveSync up to 40%;[38] this considerably improved battery life in many devices.

Aside from the visual and feature distinctions, the underlying CE versions can be used to differentiate WM 6.0 from WM 6.1. The version of Windows CE in WM 6.0 is 5.2.*, where the third and final number being a four-digit build ID (e.g. 5.2.1622 on HTC Wing). In WM 6.1, the CE version is 5.2.* with a five-digit build number (e.g. 5.2.19216 on Palm Treo 800w).

Windows Mobile 6.5 Today Screen

Windows Mobile 6.5 was based on the Windows CE 5.x kernel.

Windows Mobile 6.5 was a stopgap update to Windows Mobile 6.1 intended to bridge the gap between version 6.1 and the then yet-to-be released Windows Mobile 7 (Later canceled in favor of Windows Phone 7), that arrived in 2010. It was never part of Microsoft's mobile phone roadmap, and has been described by its chief executive, Steve Ballmer, as "not the full release Microsoft wanted" until the multi-touch-enabled Windows Mobile 7 (now replaced by Windows Phone) arrived in 2010.[39] Ballmer also indicated that the company "screwed up with Windows Mobile", he lamented that Windows Mobile 7 was not yet available and that the Windows Mobile team needed to try to recoup losses.[40] Microsoft unveiled this version at the 2009 Mobile World Congress in February,[41] and several devices were supplied with it.[42] It was released to manufacturers on May 11, 2009; the first devices running the operating system appeared in late October 2009.[43] Several phones that officially shipped with Windows Mobile 6.1 can be officially updated to Windows Mobile 6.5.[44] This update includes some significant new added features, such as a revamped GUI, a new Today screen resembling that of Microsoft's Zune player with vertically scrollable labels (called 'Titanium') in terms of functionality with a styling similar to that of Windows 7.[45] WM 6.5 also includes the new Internet Explorer Mobile 6 browser, with improved interface.[46]

Along with Windows Mobile 6.5, Microsoft announced several cloud computing services codenamed "SkyBox", "SkyLine", "SkyMarket".[47] "SkyBox" has been confirmed as My Phone,[48] while "SkyMarket" has been confirmed as Windows Marketplace for Mobile.[49] This version was designed mainly for easier finger usage.[50] Some reviewers have noted interface inconsistencies, with some applications having small buttons making them harder to operate using only a finger.[51] Whilst this version of Windows Mobile does not natively support capacitive screens, mobile manufacturers have been able to use them on their devices[52]

In the months following this release, development shifted from Windows Mobile to its successor Windows Phone. As such no major upgrades were planned or released, although three minor updates; 6.5.1, 6.5.3 and 6.5.5; were made to satisfy consumers during the transition period. 6.5.1 brings larger user interface elements,[53] including icon based soft buttons (rather than text based),[54] an updated contacts app,[55] native support for A-GPS,[53] improved threaded text messaging,[56] and performance improvements.[57] It was unofficially ported to several Windows Mobile phones.[58]

The second minor update was announced on February 2, 2010, along with the Sony Ericsson Aspen which was the first phone to use this version.[59] 6.5.3 continues the trend of attempting to provide a more finger-friendly user interface with several new usability features such as native support for multitouch; although device maker HTC Corporation created proprietary work-arounds to allow multi-touch to work on some applications it installed on its HD2 handset (However, Microsoft applications on this handset, such as the Internet Explorer web browser, did not support multi-touch.[60]) and drag-and-drop start menu icons. Touchable tiles replaced soft keys."[61] Internet Explorer Mobile 6 has also received some major updates including decreased page load time, improved memory management and gesture smoothing.[62] As with other updates it was unofficially ported to some other devices. Additional features include threaded email and Office Mobile 2010.[63]

The last minor update and the last released version is 6.5.5. It first leaked in January 2010, and was unofficially ported to some Windows Mobile phones.[64] The name Windows Mobile 6.5.5 has been applied to these newer builds, although this name remained unconfirmed by Microsoft.

Although Microsoft released a similarly-named Windows 10 Mobile in 2015, this operating system is unrelated to the former Windows Mobile operating systems.

On January 10, 2011, Microsoft announced Windows Embedded Handheld 6.5. The operating system has compatibility with Windows Mobile 6.5 and is presented as an enterprise handheld device, targeting retailers, delivery companies, and other companies that rely on handheld computing. Unlike Windows Phone, Windows Embedded Handheld retains backward compatibility with legacy Windows Mobile applications.[68]

Pocket PCs and personal digital assistants were originally the intended platform for Windows Mobile. These were grouped into two main categories: devices that lacked mobile phone capabilities, and those that included it. Beginning with version 6 devices with this functionality ran "Windows Mobile 6 Professional" and those that lacked it ran "Windows Mobile 6 Classic". Microsoft had described these devices as "a handheld device that enables you to store and retrieve e-mail, contacts, appointments, play multimedia files, games, exchange text messages with MSN Messenger, browse the Web, and more".[69] From a technical standpoint Microsoft also specified various hardware and software requirements such as the inclusion of a touchscreen and a directional pad or touchpad.

Smartphones were the second hardware platform after Pocket PC to run Windows Mobile, and debuted with the release of Pocket PC 2002. Although in the broad sense of the term "Smartphone", both Pocket PC phones and Microsoft branded Smartphones each fit into this category. Microsoft's use of the term "Smartphone" includes only more specific hardware devices that differ from Pocket PC phones. Such Smartphones were originally designed without touchscreens, intended to be operated more efficiently with only one hand, and typically had lower display resolution than Pocket PCs. Microsoft's focus for the Smartphone platform was to create a device that functioned well as a phone and data device in a more integrated manner.[70]