parallel port

hardware An interface from a computer system where data is

transferred in or out in parallel, that is, on more than one

wire. A parallel port carries one bit on each wire thus

multiplying the transfer rate obtainable over a single wire.

There will usually be some control signals on the port as well

to say when data is ready to be sent or received.

The commonest kind of parallel port is a printer port, e.g. a

Centronics port which transfers eight bits at a time. Disks

are also connected via special parallel ports, e.g. SCSI or

IDE.

(1995-01-24)