[Simh] pdp11 and unix

[Bill Cunningham]

  ----- Original Message ----- 
  From: Bill Cunningham 
  To: Paul Koning ; sim at trailing-edge.com 
  Sent: Saturday, February 27, 2016 2:36 PM
  Subject: Re: [Simh] pdp11 and unix


  Well that's certainly before ICs I think that was in the 1950s and it was some early calculators that killed slide rules. What kind of "processor" were they using? I'm not so sure there was real HLL before Adm. Hopper. And no binary by Babbge. Do you have any links or anything from the '40s?

  Bill

    ----- Original Message ----- 
    From: Paul Koning 
    To: Bill Cunningham 
    Cc: simh at trailing-edge.com 
    Sent: Saturday, February 27, 2016 2:09 PM
    Subject: Re: [Simh] pdp11 and unix



    > On Feb 27, 2016, at 2:06 PM, Bill Cunningham <billcun at suddenlink.net> wrote:
    > 
    > Or program in binary. Like originally.

    I'm not so sure about that.  I have documents from as early as 1948 showing programming in machine language, though each of these use decimal numbers for the opcodes and addresses.  While of course many machines were binary internally, I've never seen anyone actually code programs in binary.

    paul

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.trailing-edge.com/pipermail/simh/attachments/20160227/3a2c945a/attachment.html>