An expansion board that enables your computer monitor to do double-duty as a television screen. The board contains a TV tuner to select channels and circuitry to convert from the TV video standard (NTSC) to your computer's video standard (normally VGA or SVGA). Most television boards support windowed TVs as well as full-screen viewing. With a TV window you can place a mini television in the corner of your screen while you use the computer for other tasks.
Today's television boards produce TV images comparable to normal televisions. Many home computers now come with a television board pre-installed.
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