Thaum Lub Yim Hli 1969, Ken Thompson thiab Denis Ritchie ntawm Tswb Labs, tsis txaus siab rau qhov loj thiab qhov nyuaj ntawm Multics OS, tom qab ib hlis ntawm kev ua haujlwm nyuaj, thawj ua hauj lwm qauv ntawm lub operating system , tsim ua lus sib dhos rau PDP-7 minicomputer. Nyob ib ncig ntawm lub sijhawm no, qib siab programming lus B tau tsim, uas hloov mus rau C hom lus ob peb xyoos tom qab.
Thaum ntxov 1970, Brian Kernighan, Douglas McIlroy thiab Joe Ossana tau koom nrog txoj haujlwm, nrog rau lawv txoj kev koom tes Unix tau hloov kho rau PDP-11. Xyoo 1972, cov neeg tsim tawm tau tso tseg cov lus sib dhos thiab ib nrab rov sau cov kab ke hauv qib siab B hom lus, thiab dhau 2 xyoos tom ntej no cov txheej txheem tau maj mam rov sau dua hauv hom C, tom qab ntawd qhov chaw ntawm Unix hauv tsev kawm ntawv ib puag ncig tau nce ntxiv. tseem ceeb.
Tau qhov twg los: opennet.ru