1.dspinellis / unix-history-repoContinuous Unix commit history from 1970 until todayunixfreebsdbell-labshistoryevolutionberkeley+1 moreAssemblyOther license7.3K total506 forks+23 starsfrom 7,270 · score 3.18
2.microsoft / MS-DOSArchivedThe original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposesms-dosAssemblyMIT32K total4.7K forks+6 starsfrom 32,252 · score 1.95
3.icebreaker / floppybirdFloppy Bird (OS)qemuassemblygamedosbootos+5 moreAssemblyMIT935 total62 forks+1 starsfrom 934 · score 0.69