If your small business is typical, you want to get the longest lifespan possible from your tech investment, and therefore you may have an older dot-matrix or laser printer with a parallel port that ...

I'd probably get a USB to serial (RS-232) adapter and then stick a serial to parallel adapter on the end of it. Long time ago I bought a USB to parallel port adapter cable to use with an old HP laser ...

I have a PC-based DSO that connects via parallel port that I'd like to get working via USB (preferable) or at least ExpressCard. I picked up a USB-parallel adapter from MicroCenter thinking it would ...

The design of the project utilizes the parallel programming mode through parallel port in order to create this 2052/4052 programmer. For device programming, two interfaces with same command format are ...

What if there were something like a KVM switch for your micro programmer, logic analyzer, and other various tools? There was a time when KVM switches (keyboard, video, and mouse, by the way) were ...

Standard Windows port names include com0, com1, etc. for serial ports and lpt0, lpt1, etc. for parallel ports. As for the other flags used in the programming commands above: When using the Arduino as ...