Saturday, December 24, 2011

how windows 8 and its work



                 the new windos microsoft operating systems. is windows8
       it will publish on 2012.and you want learn about windows 8 and its work you click the video play..........
                                                  and enjoy                                                                                                
Windows 8 Developer Preview Start Screen.png

                                  Bootable Windows To Go USB flash drive

Windows 8 is the codename for the next version of the Microsoft Windows computer operating system following Windows 7.[3] It has many changes from previous versions. In particular it adds support for ARM microprocessors in addition to the previously supported x86 microprocessors from Intel and AMD. A new Start Screen interface has been added that was designed fortouchscreen input in addition to mouse, keyboard, and pen input. It is said to release sometime around 2012. Microsoft is yet to announce the release date.

Windows 8 will contain a new user interface based on Microsoft's design language named Metro. With the new change, the Start Menu was replaced in favor for the new Start Screen, where there are tiles that contain shortcuts to applications, Metro style applications, and updating tiles, similar to Program Manager[29] and Windows Phone.
A new authentication method allows users to sketch in three different places over the picture to login, instead of typing a password.[30][31]
Windows Explorer now uses a ribbon interface, similar to those used in Microsoft Office applications.[32]
Another feature expected to be introduced in Windows 8 is native USB 3.0 support, without the need to load drivers.[33]
Windows 8 will come with Windows Store, an online marketplace for buying, selling, and advertising applications.[34]
Windows 8 can be run from a USB-connected drive, such as a flash drive. This feature is called Windows To Go. It is intended for enterprise administrators to provide users with a Windows 8 image that reflects the corporate desktop; pricing and licensing details were not discussed when the feature was announced.[35][36] WTG is not included in Windows 8 previews.
Windows 8 will support multiple monitors with the new ability to natively display different background images on each display and customized taskbar(s) on each of the connected displays.
The Developer Preview comes with two new recovery functions.[37] Refresh and Reset, which both make a complete restore easier than a re-installation. The former keeps all the settings and files of the user intact and only reverses all changes to Windows files to its original state while removing all installed programs and apps. The latter deletes all files and effectively re-installs Windows, but without any additional user input such as agreeing to license agreements or selecting a hard disk required. After a reset completes, the user will be asked for the product key and will then proceed to account creation.[38]
One big change is that user accounts do not have to be local-only (or from an Active Directory domain) anymore but can be linked up to one's Windows Live ID. This has the advantage that users will not lose their settings and files as they move from their home computer to their work laptop or to any other computer also using Windows 8.[39]
Other new features include a new Welcome screen,[40] a new packaged application model called AppX that is based on Silverlight,[41] and Open Packaging Conventions,[42] as well as a setting to automatically adjust window color to fit the wallpaper.[43]
There is also a stripped down "Immersive" version of Internet Explorer, using the similar Metro-based user interface of the mobile version of Internet Explorer 9.[44] The Immersive Version of Internet Explorer 10 does not support ActiveX plugins, in order to be an HTML5-only browser. The Desktop version of IE10 does support ActiveX plugins.[45]
A new "Hybrid Boot" option that uses "advanced hibernation functionality" on shutdown to allow faster startup times.[46][47]
A new version of Task Manager with a redesigned user interface is also present in pre-release versions of Windows 8.
The text on the title bar of a dialog box or a program's window is centered.[48]

New features


Bootable Windows To Go USB flash drive
Windows 8 will contain a new user interface based on Microsoft's design language named Metro. With the new change, the Start Menu was replaced in favor for the new Start Screen, where there are tiles that contain shortcuts to applications, Metro style applications, and updating tiles, similar to Program Manager[29] and Windows Phone.
A new authentication method allows users to sketch in three different places over the picture to login, instead of typing a password.[30][31]
Windows Explorer now uses a ribbon interface, similar to those used in Microsoft Office applications.[32]
Another feature expected to be introduced in Windows 8 is native USB 3.0 support, without the need to load drivers.[33]
Windows 8 will come with Windows Store, an online marketplace for buying, selling, and advertising applications.[34]
Windows 8 can be run from a USB-connected drive, such as a flash drive. This feature is called Windows To Go. It is intended for enterprise administrators to provide users with a Windows 8 image that reflects the corporate desktop; pricing and licensing details were not discussed when the feature was announced.[35][36] WTG is not included in Windows 8 previews.
Windows 8 will support multiple monitors with the new ability to natively display different background images on each display and customized taskbar(s) on each of the connected displays.
The Developer Preview comes with two new recovery functions.[37] Refresh and Reset, which both make a complete restore easier than a re-installation. The former keeps all the settings and files of the user intact and only reverses all changes to Windows files to its original state while removing all installed programs and apps. The latter deletes all files and effectively re-installs Windows, but without any additional user input such as agreeing to license agreements or selecting a hard disk required. After a reset completes, the user will be asked for the product key and will then proceed to account creation.[38]
One big change is that user accounts do not have to be local-only (or from an Active Directory domain) anymore but can be linked up to one's Windows Live ID. This has the advantage that users will not lose their settings and files as they move from their home computer to their work laptop or to any other computer also using Windows 8.[39]
Other new features include a new Welcome screen,[40] a new packaged application model called AppX that is based on Silverlight,[41] and Open Packaging Conventions,[42] as well as a setting to automatically adjust window color to fit the wallpaper.[43]
There is also a stripped down "Immersive" version of Internet Explorer, using the similar Metro-based user interface of the mobile version of Internet Explorer 9.[44] The Immersive Version of Internet Explorer 10 does not support ActiveX plugins, in order to be an HTML5-only browser. The Desktop version of IE10 does support ActiveX plugins.[45]
A new "Hybrid Boot" option that uses "advanced hibernation functionality" on shutdown to allow faster startup times.[46][47]
A new version of Task Manager with a redesigned user interface is also present in pre-release versions of Windows 8.
The text on the title bar of a dialog box or a program's window is centered.[48]

[edit]Hardware requirements

Microsoft say that the Windows Developer Preview (a pre-release version of Windows 8) works well on hardware suitable for Windows Vista or 7.[49]
Minimum hardware requirements for Windows Developer Preview
ArchitectureIA-32 (32-bit)x86-64 (64-bit)
Processor1 GHz
Memory (RAM)1 GB2 GB
Graphics CardDirectX 9 graphics device with WDDM 1.0 or higher driver
HDD free space16 GB20 GB
A multi-touch screen is required to use touch input. For Metro applications, a screen resolution of 1024x768 or higher is required.
Microsoft has revealed the following maximum supported hardware specifications for Windows Server 8 at the BUILD conference.[50]
Logical processors640 (was 256 in Windows Server 2008 R2)
Random-access memory4 TB (was 2 TB in Windows Server 2008 R2)
Failover cluster nodes63 (was 16 in Windows Server 2008 R2)
Microsoft may also require new PCs to have the UEFI secure boot feature enabled by default to be given Windows 8 certification. There has been some concern that it could lead to machines that do not support alternative operating systems.[51] Microsoft has addressed the issue in a blog post,[52][53] stating that the manufacturer is free to choose which signaturesare accepted by the feature and that the manufacturer is also free to offer the ability to turn off the secure boot feature.[54]

[edit]Compatibility

Windows 8 for x86 processors will run much software compatible with previous x86 versions of Windows, with the usual restrictions: 64-bit Windows will run also 32-bit software but not 16-bit ones; 32-bit Windows will optionally run 16-bit software if installed to do so, but will not run 64-bit software. Either 32- or 64-bit Windows can be installed on x86-64 processors. Some expertise in manipulating compatibility settings may be required to run, for example, 16-bit software for Windows 3.x under 32-bit Windows 8, in cases where it is possible. In particular, applications compatible with 32- and 64-bit Windows 7 will run in the same way on Windows 8.[55]
Windows 8 for ARM processors will not run software created for x86; software will have to be ported by its developers to create ARM executables from source code.[56][57]
Windows 8 Developer Preview is incompatible with some virtualization platforms, such as Virtual PC. A blog post by Microsoft notes that the setup process is error-prone when installing in a virtual machine, and installing without hardware virtualization support can be particularly problematic.[58] It is reported to work under VMware WorkstationVMware Player, andVirtualBox — detailed instructions for installing in these environments have been published.[59][60]
Developers can write apps for Windows 8 in JavaScript and HTML, Visual Basic, C++, and C#.

[edit]See also


0 comments:

Post a Comment