They have also become a source of security and privacy issues, as some built-in webcams can be remotely activated by spyware.
The most popular use of webcams is the establishment of video links, permitting computers to act as videophones or videoconference stations.
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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.Most people’s webcam is situated too low, and people don’t look their best in a camera angle that’s coming from beneath their chin.Grab a couple of books and place them under your laptop if necessary. Move your webcam a little closer to your face, and a little farther away… If your webcam is at the top of your laptop screen, move your screen back and forth, creating different angles, again attempting to determine which angle suits you.When sent to a remote location, the video stream may be saved, viewed or on sent there.Unlike an IP camera (which connects using Ethernet or Wi-Fi), a webcam is generally connected by a USB cable, or similar cable, or built into computer hardware, such as laptops.