Philips 191EW9FB/27 User Manual page 81

Glossary
file:///I|/Q70G9002813 8B 191EW9/lcd/manual/ENGLISH/191EW9/glossary/glossary.htm（第 9／9 页）2008-12-8 16:17:09
Upstream
The direction of data flow towards the host. An upstream port is the port on a device electrically
closest to the host that generates upstream data traffic from the hub. Upstream ports receive
downstream data traffic.
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V
Vertical refresh rate
Expressed in Hz, it is the number of frames (complete pictures) written to the screen every second.
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