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Webcams may be installed at places such as childcare centres, offices, shops and private areas to monitor security and general activity.Webcams have been used for augmented reality experiences online.Video calling support has also been added to several popular instant messaging programs. Software is available to allow PC-connected cameras to watch for movement and sound, a computer e-mailed images of the burglar during the theft of the computer, enabling the owner to give police a clear picture of the burglar's face even after the computer had been stolen.Unauthorized access of webcams can present significant privacy issues (see "Privacy" section below).Despite the low cost, the resolution offered at present (2015) is rather impressive, with low-end webcams offering resolutions of 320×240, medium webcams offering 640×480 resolution, and high-end webcams offering 1280×720 (aka 720p) or even 1920×1080 (aka 1080p) resolution.They have also become a source of security and privacy issues, as some built-in webcams can be remotely activated by spyware.
A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.Various software tools in wide use can be employed for this, such as Pic Master (for use with Windows operating systems), Photo Booth (Mac), or Cheese (with Unix systems).For a more complete list see Comparison of webcam software.In December 2011, Russia announced that 290,000 Webcams would be installed in 90,000 polling stations to monitor the Russian presidential election, 2012.
Webcams can be used to take video clips and still pictures.
One such function has the webcam act as a "magic mirror" to allow an online shopper to view a virtual item on themselves.