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随着多媒体技术的发展,市场上涌现出多种多样的视频卡。通过在计算机上插一块视频卡,人们就可以在计算机屏幕上观看VCD、电视及其它视频信号,也可将计算机显示信息显示到电视机上或进行录像。一般地说,视频卡可分为视频输入卡和视频输出卡两类。视频输入卡,也称视频捕捉卡、视频压缩卡,它可接收来自摄像机、录像机等的视频信号,在计算机屏幕上开窗实时播放,并可存储、编辑图象;视频输出卡,也称PC-TV卡,它将计算机显示信息转换为S-VIDEO信号、复合视频信号,输出到普
With the development of multimedia technology, a variety of video cards have appeared on the market. By plugging in a video card on a computer, people can watch VCD, TV and other video signals on a computer screen, or display computer-generated information on a television or record video. In general, the video card can be divided into video input card and video output card two categories. Video input card, also known as video capture card, video compression card, which can receive video from cameras, video recorders and other video windows on the computer screen real-time playback, and can store and edit images; video output card, also known as PC -TV card, which converts the computer display information to S-VIDEO signal, composite video signal, output to the general