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View and free download taylor swift biography in the collection of , this great wallpaper support your computer with various resolutions, such as 1024x768 normal wallpapers, 1280x960 wallpapers, 1280x1024 wallpapers, 1440x900 widescreen wallpaper and so on. This wallpaper belongs to Taylor Swift Wallpapers and is related to taylor swift biography, taylor swift gellary, taylor swift pictures, taylor swift pics, taylor swift sexy.2009 National Women's History Project honors women in the environmental movement. New biographies on Rachel Carson, Julia Hill, Jane Goodall and Alice Waters

In 2008, women took center stage on the campaign trail. Look for new biographies of Laura Bush, Hillary Clinton, Michelle Obama and Sarah Palin

Check back each week during March for a new Women's History quiz

New Featured Titles list

Updated timeline now includes events in politics and the environmental movement through 2008

Visit the Biography in Context, an online reference for public, school and academic librariesWallpaper (also desktop picture and desktop background) is an image used as a background of a graphical user interface on a computer screen or mobile communications device. On a computer it is usually for the desktop, while for a mobile phone it is usually the background for the 'home' or 'idle' screen. Though most devices comes with a default picture, users can usually change it to files of their choosing.[1]

"Wallpaper" is the term used in Microsoft Windows before Windows Vista (where it is called the Desktop "Background"), while Mac OS X calls it a "desktop picture" (previously, the term desktop pattern was used to refer to a small pattern that was repeated to fill the screen).The original Macintosh operating system only allowed a selection of 8×8-pixel binary-image tiled patterns; the ability to use small color patterns was added in System 5 in 1987.[6] MacOS 8 in 1997 was the first Macintosh version to include built-in support for using arbitrary images as desktop pictures, rather than small repeating patterns.[7]

Windows 3.0 in 1990 was the first version of Microsoft Windows to come with support for wallpaper customization, and used the term "wallpaper" for this feature.[8] Although Windows 3.0 only came with 7 small patterns (2 black-and-white and 5 16-color), the user could supply other images in the BMP file format with up to 8-bit color (although the system was theoretically capable of handling 24-bit color images, it did so by dithering them to an 8-bit palette).[9] In the same year, third-party freeware was available for the Macintosh[10] and OS/2[11] to provide similar wallpaper features otherwise lacking in those systems. A wallpaper feature was added in a beta release of OS/2 2.0 in 1991.