PPOSC is a program which runs on plain DOS. It collects information from the machine’s parallel port as fast as possible, and displays it like some oscilloscope.You can use PPOSC to monitor other parallel ports, as well as monitor any other signal which can be interpreted digitally, that is, there is only an “ON” and an “OFF” state. Anyway, you might need some interface hardware to be able to connect your parallel port to another device.
Supported operating systems
To be able to collect data, PPOSC runs on plain DOS only. No DOS extenders, DOS box of Windows (or Linux), or other hardware virtualization (VMWare or Virtual PC come to mind) or allowed, either. That’s because PPOSC needs the timing as correct as possible, and these virtualizations would break this requirement.Anyway, for having a look at the collected data, you can use any suitable DOS box. That is, the DOS box of Windows NT, 2000 or XP are as good as the DOS box of Linux might be.
