Updated: 08/02/2020 by Computer Hope

Short for line printer terminal, LPT is used by IBM compatible computers as an identification for the parallel port, such as LPT1, LPT2, or LPT3. At one point, the LPT port was commonly required when installing a printer on an IBM compatible computer. The majority of computers that utilize LPT1 don't have an option for another LPT port.

Parallel port

Where is the LPT (parallel) port on a computer?

The LPT port or parallel port is found on the back of the computer and is part of the motherboard.


Most of today's computers are eliminating the parallel port in favor of USB (Universal Serial Bus) ports.

Computer acronyms, Port, Printer terms, TLA