Parallel Ports
The parallel port, also known as the LPT (line printer) port, was originally designed for use with parallel printers. However, don't let the name “LPT port” fool you: the parallel port is among the most versatile of I/O ports in the system because it is also used by a variety of devices, including tape backups, external CD-ROM and optical drives, scanners, and removable-media drives such as Zip drives. Although newer devices in these categories are now designed to use USB or IEEE-1394 ports, the parallel port continues to be an important external I/O device for systems running Windows 95 and Windows NT 4.0.
The parallel (LPT) port is unusual because it uses two completely different connector types:
All IBM and compatible computers ...
Get Absolute Beginner's Guide to A+ Certification now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
