Habey BIS-6650 - Manual (Page 55)

LPT
Line print terminal.The denomination reserved by DOS, is used to denote universal parallel
interface, and connect printer in a general way.
PnP
Plug-and-Play. It is a specification that allows PC to configure its external devices automatically
and can work independently without the manual operation by its user . To achieve this function,
its BIOS should be able to support PnP and a PnP expansion card.
POST
Self-test when power on. While booting, BIOS will do once uninterrupted testing operation to
the system, including RAM, keyboard, hard disk driver etc. Check them in normal situation and
work well.
PS/2
A keyboard & mouse connective interface specification developed by IBM.PS/2 is a DIN
interface with only 6PIN; it also can connect other devices, like modem.
USB
It is the Universal Serial Bus for short. A hardware interface adapts to low speed external
devices, and is always used to connect keyboard, mouse etc. One PC can connect 127 USB
devices Max, providing 12Mbit/s transmit bandwidth；USB supports hot swap and multi- data
stream, namely, you can plug USB devices while system is running, system can auto-detect
and makes it work on.
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