Camera digital cameras and analog cameras can be divided into two broad categories. Digital cameras can produce video capture device converts analog video signals into digital signals, and then store it in a computer. Analog cameras capture the video signal must pass specific video capture card to convert analog signals into digital models, and compressed before it can be converted to use on your computer. Digital cameras can capture images, and serial and parallel port or USB port to the computer. PC camera in digital cameras on the market, and digital cameras to use the new data interface USB digital camera, this product is the most visible on the market. In addition to a video capture card for use with the product, but not yet in the mainstream. Due to the rapid spread of personal computers, analog cameras are higher overall costs, and cannot meet the BSV, LCD interface, USB interface transmission speed is much higher than the speed of the serial port, parallel port, so the market USB interface.
Camera now has experienced a number of revolutionary changes and industry reshuffle. Every innovation, has injected new impetus to the development of the camera industry; and every time the industry reshuffle, also eventually eliminated have no strength, no innovation, low quality of others.