TFT(thin film transistor)
Usually made from amorphous silicon (a-Si) and used as a switch to a charge storage device
located below each sub-pixel on an active matrix LCD.
TrueVision
U
USB or Universal Serial Bus
A smart plug for PC peripherals. USB automatically determines resources (like driver
software and bus bandwidth) required by peripherals. USB makes necessary resources
available without user intervention.
USB eliminates "case anxiety" -- the fear of removing the computer case to install add-
on peripherals. USB also eliminates adjustment of complicated IRQ settings when
installing new peripherals.
USB does away with "port gridlock." Without USB, PCs are normally limited to one
printer, two Com port devices (usually a mouse and modem), one Enhanced Parallel
Port add-on (scanner or video camera, for example) and a joystick. More and more
peripherals for multimedia computers arrive on the market every day. With USB, up to
127 devices can run simultaneously on a computer.
USB permits "hot plug-in." There's no need to shut down, plug in, reboot and run set-
up to install peripherals. And no need to go through the reverse process to unplug a
device.
In short, USB transforms today's "Plug-and-Pray" into true Plug-and-Play!
Hub
