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events:timeline [2016/01/14 10:48] – wkt | events:timeline [2016/01/14 10:51] – [1971] wkt |
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**Spring:** roff rewritten in PDP-11 assembler language, starting from the PDP-7 version that had been transliterated from McIlroy's BCPL version on Multics, which had in turn been inspired by J. Saltzer's runoff program on CTSS [ [[http://cm.bell-labs.com/cm/cs/who/dmr/hist.html]] ] | **Spring:** roff rewritten in PDP-11 assembler language, starting from the PDP-7 version that had been transliterated from McIlroy's BCPL version on Multics, which had in turn been inspired by J. Saltzer's runoff program on CTSS [ [[http://cm.bell-labs.com/cm/cs/who/dmr/hist.html]] ] |
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| **Mid-1971:** Dennis writes a [[http://www.tuhs.org/Archive/PDP-11/Distributions/research/McIlroy_v0/|draft]] of "The Unix Time-Sharing System" paper. |
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**November:** First Edition manuals were published [ [[:publications:quarter_century_of_unix|QCU]] pg 43] | **November:** First Edition manuals were published [ [[:publications:quarter_century_of_unix|QCU]] pg 43] |
**March:** UNIX is running on at least 5 PDP-11/20s [ [[http://cm.bell-labs.com/cm/cs/who/dmr/notes.html]] ] | **March:** UNIX is running on at least 5 PDP-11/20s [ [[http://cm.bell-labs.com/cm/cs/who/dmr/notes.html]] ] |
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**June:** DEC starts to ship the PDP-11/45. The Labs purchases one soon after this [[[http://www.village.org/pdp11/faq.pages/11model.html]|http://www.village.org/pdp11/faq.pages/11model.html]]] | **June:** DEC starts to ship the PDP-11/45. The Labs purchases one soon after this [ [[http://www.village.org/pdp11/faq.pages/11model.html]] ] |
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**June:** Second Edition manuals were published. 10 UNIX installations [ [[:publications:quarter_century_of_unix|QCU]] pg 43] | **June:** Second Edition manuals were published. 10 UNIX installations [ [[:publications:quarter_century_of_unix|QCU]] pg 43] |
**June-July:** The C compiler binaries and associated utilities (as, nm, size, ld, un) on the s2-bits tap archive, with 0407-magic and using the 2nd Edition API. The files in the last1120c C compiler are contemporaneous. [timestamps on files in the [[http://www.tuhs.org/Archive/PDP-11/Distributions/research/1972_stuff/|tap archives]]] | **June-July:** The C compiler binaries and associated utilities (as, nm, size, ld, un) on the s2-bits tap archive, with 0407-magic and using the 2nd Edition API. The files in the last1120c C compiler are contemporaneous. [timestamps on files in the [[http://www.tuhs.org/Archive/PDP-11/Distributions/research/1972_stuff/|tap archives]]] |
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**Sometime between July and December:** Ken adds pipes to the assembly-language version of the kernel [ [[:publications:quarter_century_of_unix|QCU]] pg 51], [[[http://cm.bell-labs.com/cm/cs/who/dmr/hist.html]|http://cm.bell-labs.com/cm/cs/who/dmr/hist.html]]] | **Sometime between July and December:** Ken adds pipes to the assembly-language version of the kernel [ [[:publications:quarter_century_of_unix|QCU]] pg 51], [ [[http://cm.bell-labs.com/cm/cs/who/dmr/hist.html]] ] |
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**December:** The prestruct C compiler sources. This compiler assumes a load address of 0, unlike last1120c which has 040000. This implies that the kernel now used the 11/45 memory management. [timestamps on files in the [[http://www.tuhs.org/Archive/Applications/Early_C_Compilers/prestructc-bits.gz|tap archive]]] | **December:** The prestruct C compiler sources. This compiler assumes a load address of 0, unlike last1120c which has 040000. This implies that the kernel now used the 11/45 memory management. [timestamps on files in the [[http://www.tuhs.org/Archive/Applications/Early_C_Compilers/prestructc-bits.gz|tap archive]]] |