Click here

parallel port

A parallel interface for connecting an external device such as a printer. Most personal computers have both a parallel port and at least one serial port.

On PCs, the parallel port uses a 25-pin connector (type DB-25) and is used to connect printers, computers and other devices that need relatively high bandwidth. It is often called a Centronics interface after the company that designed the original standard for parallel communication between a computer and printer. (The modern parallel interface is based on a design by Epson.)

A newer type of parallel port, which supports the same connectors as the Centronics interface, is the EPP (Enhanced Parallel Port) or ECP (Extended Capabilities Port). Both of these parallel ports support bi-directional communication and transfer rates ten times as fast as the Centronics port.

Macintoshes have a SCSI port, which is parallel, but more flexible.

parallel port


Top Terms
  • 1

    Consumerization of IT

    Consumerization of IT is a phrase used to describe the cycle of information technology (IT) emerging in the consumer market then spreading to...

    Read more »

  • 2

    ERP - Enterprise Resource Planning

    Short for enterprise resource planning, ERP is business management software that allows an organization to use a system of integrated applications...

    Read more »

  • Click Here!

Connect with Webopedia

Did You Know? Archive »

  • Quick Reference Archive »