Thursday 4 July 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Source:Googel.com.pk

Biography:

Wallpaper (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"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).A 'live wallpaper' is a type of application that works on a mobile device using the Android operating system. 

The application works as a wallpaper – providing the background image for the home screen—but also works as a conventional application since it can provide user-interaction with the touch screen (allowing the image to change dynamically, for example) and access other hardware and software features within the device (accelerometer, GPS, network access, etc.).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.

The X Window System was one of the earliest systems to include support for an arbitrary image as wallpaper via the xsetroot program, which at least as early as the X10R3 release in 1985 could tile the screen with any solid color or any binary-image X BitMap file.lthough 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.le.

Similarly, Windows 7 can also be set to cycle through pictures from a folder at regular intervals. If fully animated backgrounds are wanted, third party software would need to be installed.Mac OS X has built-in support, via the Desktop & Screen Saver panel in its System Preferences, for cycling through a folder collection of images on a timed interval or when logging in or waking from sleep.
Additionally, OS X has the native ability to run a screen saver on the desktop; in this configuration, the screen saver appears beneath the desktop icons in place of the system wallpaper. However, OS X does not come with a built-in interface to do this; it must be done through Terminal commands or various third-party applications.

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

Free Desktop Background Downloads Free Photos Pictures Images 2013

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