what is the difference between a TV card and IEEE 1394 FIREWIRE?

If I install a TV card , would it serve the purpose of Capturing the video from my camcorder?

what is the difference between a TV card and IEEE 1394 FIREWIRE?

Yes, It would
If your Camcorder have DV out then procure a Firewire card or make sure that the TV card includes Firewire, which most don't. You *can* occupation on a TV card using the composite input but the quality will not be as moral.
Yes, you would be able to invasion video's provided ofcourse that the playback device has an analogue out i.e:video and audio outputs. A IEEE1394 port is a tidier road of capturing video's as here is only one cable going from playback device to computer. All contained by all, firewire is faster.
The primary difference is that a TV card will capture an analog audio/video signal and convert it to digital, while IEEE 1394 will verbs the information digitally. Transferring digitally will mean no indignity in aspect, while analog signals tend to lose their quality the more times they are rerecorded (like copying vhs tape would result in worse and worse trait recordings each time a copied video is recopied). If your camcorder is digital and has an IEEE 1394/Firewire output, forget the TV card and gain an IEEE 1394 card instead. you'll get high-ranking quality, full resolution, video and audio onto your computer set for editing. if you already own a TV card and your computer doesn't have a Firewire input, you can use it for like peas in a pod purpose, but the quality will suffer.
What type of camcorder ? if minidv after you need a firewire cable and card installed to caputre video , if it is analog afterwards you need a invasion card installed instead.