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how do webcams workHow Do Webcams Work

A basic webcam consists of a digital camera connected to your computer through a USB port. Software then connects to the camera and takes a frame from it every few seconds or minutes - you set the time.

The software will take a still image from the camera once every 10 or 20 seconds. The software then converts the image into a JPG file and FTP's it to your Web server. This JPG image can now be placed on a Web page.

If you dont have a Web server, some companies now offer free places to upload your images, saving you the trouble and cost of a buying and configuring a Web server or a hosted Web site.

Putting a JPG image into a Web page is fairly simple, use a meta tag refresh command, a JavaScript or a Java applet to refresh the image.