Unix: Verskil tussen weergawes

| eerste_vrystelling_datum = Ontwikkeling begin in 1969; eerste handleiding intern gepubliseer in November 1971<ref>{{en}} {{cite journal |first1=M. D. |last1=McIlroy |authorlink1=Doug McIlroy |year=1987 |url=http://www.cs.dartmouth.edu/~doug/reader.pdf |title=A Research Unix reader: annotated excerpts from the Programmer's Manual, 1971–1986 |series=CSTR |number=139 |institution=Bell Labs}}</ref><br />Buite Bell Labs aangekondig in Oktober 1973<ref>{{en}} {{cite journal |first1=D. M. |last1=Ritchie |first2=K. |last2=Thompson |year=1974 |url=httphttps://cmdoi.bell-labsorg/10.com/cm/cs/who/dmr1145/cacm361011.html361061 |title=The UNIX Time-Sharing System |journal=CACM |volume=17 |issue=7 |pages=365–375}}</ref>