Important Hot Keys in Window-8

This Extensive List Of Windows 8 Keyboard Shortcuts Will Help You Adapt To ... they don't always function in the manner in which you are used to. ... but for your day-to-day needs, it does include most of the important ones.
 Windows 8 introduces the new Windows Runtime (WinRT) platform, which can be used to create a new type of application officially known as Windows Store apps and commonly called Metro-style apps. Such apps run within a secure sandbox, share data with other apps through common APIs. WinRT, being a COM-based API, allows for the use of various programming languages to code apps, including C++, C++/CX, C#,Visual Basic .NET, or HTML5 and JavaScript.

Apps in Windows 8 may snap to the side of a widescreen display to allow multi-tasking, forming a sidebar. In Windows 8.1, the size of this sidebar can be changed. Snapped apps may occupy half of the screen. Large screens allow up to four apps to be snapped. Upon launching an app, Windows allows the user to pick which snapped view the app should open into.

The term "Metro-style apps" referred to "Metro", a design language prominently used by Windows 8 and other recent Microsoft products. Reports surfaced that Microsoft employees were told to stop using the term due to potential trademark issues with an unspecified partner. A Microsoft spokesperson however, denied these reports and stated that "Metro-style" was merely a codename for the new application platform.

Windows 8.1 introduces Assigned Access, formerly called Kiosk mode, which restricts the Windows device to a running a single predetermined Metro-style app.

Windows 8 also introduces APIs to support near field communication (NFC) on Windows 8 devices, allowing functionality like launching URLs/applications and sharing of information between devices via NFC. 

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