Adrian Frutiger designed OCR-B for Monotype in 1968 as a more human-friendly alternative to OCR-A now that machines were getting better at optical character recognition. It can still be found in use today on the bottom of bar codes and the machine-readable part of passports.
This liberal adaptation I created on the Sinclair Spectrum +3 using Artist II some time in the late 1980s. Given the lack of strong visual cues it could be easily mistaken for a nice sans-serif although the numeric glyphs definitely shine through.
It is suitable for any scenario where a clean machine-influenced look is desired.