The pin layout of a parallel port and their significance. | Download Scientific Diagram
Parallel port - Wikipedia
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Parallel Port
9-Pin to 25-Pin Port-to-Port Loopback Cable (SunVTS 5.0 Test Reference Manual)
Parallel cable pinout and port information - Lammert Bies
How to refer to the parallel port where devices such as printers are connected - Quora
LPT Ports - Parallel Direct Cable Connection - Pinouts - Transfer speeds
Parallel cable pinout and port information - Lammert Bies