Re: [GTALUG] ancient computer history

2018-09-18 Thread D. Hugh Redelmeier via talk
| From: James Knott via talk | On 09/18/2018 07:11 PM, D. Hugh Redelmeier via talk wrote: | > The PDP-8i was meant to be part of a hybrid computer (analogue + | > digital). I never used the analogue part (what's an op amp?). | | As far as I know, the PDP-8i I worked on didn't have any analog |

Re: [GTALUG] ancient computer history

2018-09-18 Thread James Knott via talk
On 09/18/2018 07:11 PM, D. Hugh Redelmeier via talk wrote: > The PDP-8i was meant to be part of a hybrid computer (analogue + > digital). I never used the analogue part (what's an op amp?). As far as I know, the PDP-8i I worked on didn't have any analog hardware, though it might have been

Re: [GTALUG] ancient computer history

2018-09-18 Thread D. Hugh Redelmeier via talk
| From: Stewart Russell via talk | On Tue, Sep 18, 2018, 10:48 James Knott via talk, wrote: | | > I also used to maintain a PDP-8i | > computer. I used PDP-8s and PDP-8i computers that I found access to at the U of T in 1968 and 1969 (when I was sneaking in). Let me be clear: as far as I

Re: [GTALUG] ancient computer history

2018-09-18 Thread James Knott via talk
On 09/18/2018 12:43 PM, Stewart Russell via talk wrote: > The basic PDP-8 didn't have a hardware stack, so you had to prepare > subroutines by modifying the code's return address before you called it.  The Data General Nova didn't either.  The Eclipse did. --- Talk Mailing List talk@gtalug.org

Re: [GTALUG] ancient computer history

2018-09-18 Thread James Knott via talk
On 09/18/2018 12:43 PM, Stewart Russell via talk wrote: > On Tue, Sep 18, 2018, 10:48 James Knott via talk, > wrote: > >  I also used to maintain a PDP-8i > computer.  When browsing through the programming manual, I found DEC > actually recommending self

Re: [GTALUG] ancient computer history

2018-09-18 Thread Scott Allen via talk
Starting yet another "I remember, back in the day" thread, are we? Let's see how far this one goes. :-/ -- Scott --- Talk Mailing List talk@gtalug.org https://gtalug.org/mailman/listinfo/talk

Re: [GTALUG] ancient computer history

2018-09-18 Thread Stewart Russell via talk
On Tue, Sep 18, 2018, 10:48 James Knott via talk, wrote: > I also used to maintain a PDP-8i > computer. When browsing through the programming manual, I found DEC > actually recommending self modifying code, to get around the limitations > of the instruction set! The basic PDP-8 didn't have a

Re: [GTALUG] ancient computer history

2018-09-18 Thread James Knott via talk
On 09/18/2018 02:37 AM, D. Hugh Redelmeier via talk wrote: > (I was in high school then and it was extremely difficult to get > information about computers then. The internet is such a great facility! > I used to sneak into U of T, Waterloo, and York to get accesss to > computers.) I didn't

Re: [GTALUG] ancient computer history

2018-09-18 Thread James Knott via talk
On 09/18/2018 02:37 AM, D. Hugh Redelmeier via talk wrote: > I read this with fascination in 1967 or perhaps early 1968. It was almost > current then! Looking at it now, I still remember some of the phrases. > >

[GTALUG] ancient computer history

2018-09-18 Thread D. Hugh Redelmeier via talk
I read this with fascination in 1967 or perhaps early 1968. It was almost current then! Looking at it now, I still remember some of the phrases. (I was in high school then and it was extremely