![]() If you want to reprogram new automobile keys, you are likely going to need a parallel port to access the programming tools. But while all of these devices are, for the most part, obsolete, there are still many devices in service both in the consumer and business sectors.Ī perfect example of this is the locksmithing industry. There were many notable devices that used parallel ports including the Iomega ZIP drive, several of the first MP3 players, Printers, and Scanners. Plus, parallel allowed multiple binary signals to be transmitted at the same time, something that was necessary for many applications due to the slow data transfer rates available at the time. With 8 input pins, four output pins and an array of control and signal plus, you could just route each pin to respond to a specific circuit. The port was widely used as it was very inexpensive to develop hardware for. If you were using computers in the 90s, you’ll quickly recognize its massive 25 pin socket. ![]() The port remained in use all the way until 1996 when it was superseded by the USB standard. The Parallel port, or as you may know it the “printer port,” was in use with computers as early as 1981.
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