# MMIX ## Identification Donald Knuth's educational 64-bit computer architecture; MMIXAL assembly commonly uses `.mms`. ## Notebook evidence - [[Scanned_20260730-1946|Scanned_20260730-1946]], PDF page 19. ## Relationships and evidentiary boundary [[x86-64]] · [[Digital preservation]] · [[Interoperability]]. The notebook occurrence preserves a historical compatibility or software clue. It does not alone prove installation, use, ownership, provenance, or the exact identification of uncertain handwriting.