I'm using an old DOS-based application to program a bunch of radios via the serial port. Unfortunately, the timing in the application is really shitty and if there are even slight timing problems, the ...

Your friend is mistaken. This serial port he is talking about is called "CGA" and closely resembles a serial port. However it still requires a graphics card and a monitor! You can convert a CGA signal ...

A PLC or programmable logic controller is a type of computer often employed to monitor and control industrial manufacturing operations. The device, which you may see referred to as a programmable ...