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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.
For however elusive happiness is to define, there are very specific things people can do each day that are proven to increase happiness: changing your calendar and your approach to car parking, and buying a notebook.
Tal Ben-Shahar: The first thing to do to become happier, paradoxically, is to accept painful emotions, to accept them as a part of being alive.
The video streams provided by webcams can be used for a number of purposes, each using appropriate software: Most modern webcams are capable of capturing arterial pulse rate by the use of a simple algorithmic trick.
Researchers claim that this method is accurate to ±5 bpm.
One such function has the webcam act as a "magic mirror" to allow an online shopper to view a virtual item on themselves.
The Webcam Social Shopper is one example of software that utilizes the webcam in this manner.
When sent to a remote location, the video stream may be saved, viewed or on sent there.
In December 2011, Russia announced that 290,000 Webcams would be installed in 90,000 polling stations to monitor the Russian presidential election, 2012.