This is a dot-matrix version of a very popular classic computer!
This is a clone of Apple 2b Dot-MatrixThis is a thick dot-matrix version of a very popular classic computer (fixing 1 pixel wider than the original), and it's normally used on word processors, electric billboards, etc. Probably a great font! Update: I just updated to the better, thick dots for all letters and symbols.
This is a clone of Apple 2b Dot-MatrixRecreated character set of the Brother EP-20/22 Electronic Thermal Typewriter (1983).
Square-pixel variation also available.
This is the screen font from the IBM 5100 Portable Computer. It is uppercase-only, and has a large repertory of APL-related characters as well. Of note is that no two adjacent horizontal dots are ever both active, because the font might have also been intended to be used with a dot-matrix printer.