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PiDP-11 – Recreating PDP-11/70 with Raspberry Pi

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21–30 of 57 posts

Re: PiDP-11 – Recreating PDP-11/70 with Raspberry Pi

#23
post #11
post #9

Earlier quoted context omitted.

Hard, hard disagree. Nothing beats learning by getting your hands on a thing.

Agreed that hands on is always best, but virtual is great if you can lay hands on. PDPs are a bit hard to ship around.

Right? We're talking about the PiDP here, aren't we?

Re: PiDP-11 – Recreating PDP-11/70 with Raspberry Pi

#25
With this or a PiDP-8, I've idly thought about learning enough to write a "terminal operating system" so one could plug it into a USB port and get a shell to a Linux or BSD system. That way it could be of actual use to the owner after playing with older operating systems loses its allure.

Re: PiDP-11 – Recreating PDP-11/70 with Raspberry Pi

#27
post #14
post #2

Nova 1200 would be easier. Just glass panel painted mostly black and regular off-the-shelf switches. Bigger problem is the menacing glow of blinkenlichts. Leds will never do.

Indeed, this era of machine retained a sort of “electromechanical” feel that the incandescent bulbs contribute to. Not to mention the DECwriter that was usually attached to it.

DECwriter would have been a luxury. ASR-33.

Re: PiDP-11 – Recreating PDP-11/70 with Raspberry Pi

#28
post #7

Earlier quoted context omitted.

Ebay and a serial USB adapter are you friends :).

Nope. 1. Decwriter terminals are very hard to come by! Haven't seen one on eBay in the years I've been searching. Look for yourself: https://www.ebay.com/sch/i.html?_from=R40&_nkw=decwriter&_sa... 2. Don't need a USB Serial Adapter with the PiDP-11. The PiDP-11 board will support up to 5 RS-232 ports on it: https://obsolescence.wixsite.com/obsolescence/pidp-11-connec...

I bought all the PDP-11 items listed on eBay around 15 years ago, so I was nodding in agreement. And yet: https://www.ebay.com/itm/Digital-DEC-PDP-11-05-with-RK05-dis...

Re: PiDP-11 – Recreating PDP-11/70 with Raspberry Pi

#30
post #7

Earlier quoted context omitted.

Ebay and a serial USB adapter are you friends :).

Nope. 1. Decwriter terminals are very hard to come by! Haven't seen one on eBay in the years I've been searching. Look for yourself: https://www.ebay.com/sch/i.html?_from=R40&_nkw=decwriter&_sa... 2. Don't need a USB Serial Adapter with the PiDP-11. The PiDP-11 board will support up to 5 RS-232 ports on it: https://obsolescence.wixsite.com/obsolescence/pidp-11-connec...

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