Researcher Seeks Businesses Still Running Critical Operations on DOS-Era Hardware

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A researcher is surveying professionals who rely on legacy DOS-based systems to keep their businesses running. The inquiry covers outdated database environments such as dBase and Clipper, as well as industrial equipment like CNC mills and spectrometers controlled by older ISA cards. Hardware-locked software using parallel port dongles is also among the systems of interest. The researcher's goal is to explore ways of keeping these aging setups functional on modern hardware. The call for responses was posted on Hacker News, with the researcher inviting direct contact via email.

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