Messages in this thread | | | Date | Thu, 19 Nov 1998 09:59:20 -0000 (GMT) | From | Simon Kenyon <> | Subject | Re: Linux-asm (was A patch for linux 2.1.127) |
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On 18-Nov-98 Richard B. Johnson wrote: > Unix was built on a Digital PDP-11/34, using tools available > in the RSX-11 Digital Operation system. Most of the 'hardware stuff' > was done in DEC MACRO Assembly under RSX-11. > 'C' came later.
that's not right
quote from BSTJ vol 57 no 6 july-august 1978:
"There have been four versions of the UNIX time-sharing system. The earliest (circa 1967-70) ran on the Digital Equipment Corporation PDP-7 and -9 computers. The second ran on the unprotected PDP-11/20 computer. The third incorporated multiprogramming and ran on the PDP-11/34, /40, /45. /60, and /70 computers..."
later on Ken and Dennis say:
"The first version was written when one of us (Thompson), dissatisfied with the available computer facilities, discovered a little used PDP-7 and set out to create a more hospitable environment. This (essentially personal) effort was sufficiently successful to gain the interest of the other author and several colleagues, and later to justify the aquisition of the PDP-11/20, specifically to support and text editing and formatting system. When in turn the PDP-11/20 was outgrown, the system had proven useful enought to pursuade management to invest in the PDP-11/45, and later in the PDP-11/70 and Interdata 8/32 machines, upon which it developed to its present form"
unix and c existed long before rsx-11 ever saw the light of day -- simon
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