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This week, a real oddity from 1978, the DR70 - a dedicated machine for astrologers, and the very model President Reagan used, indirectly, to choose propitious times for important decisions and meetings. It was supplied in a hard case for lugging, with a printer in a second case. "Included are planetary routines good for several thousand years and a wide variety of house systems and current pattern systems. It can even compare charts. If all you want is personal charts it is great—especially since it is portable."
Battery powered and weighing just 8 pounds, according to this advert:

Large advert image:
"It is quite a marriage of science and creativity"

We believe there's a 6502 inside, because of this press article:
(This page suggests the DR-70 is Z80 based, but we say [citation needed]:

Digicomp made a successor, the Astrion System 80 - which might well represent a switch to the Z80 micro, or just a switch to the 1980s. (This is the same Digicomp which made two mechanical "computer" models, or toys.)

Duncan Campbell the investigative journalist said "Ronald Reagan has been secretly programmed by a computer for the past eight years".

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Originally shared by Dane Henry
Check out my Amiga1200 tower project 'FrankenAMIGA'

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Some of you most probably know already, but I realised just now, that there is a retrocomputing community on Stackexchange as well.

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The Kim and the Cosmac - two great early single board computers. Who would have guessed the 1802 would fall by the wayside as the 6502 got built into a succession of great microcomputers?
From a whole gallery of photos taken at VCF-East in 2011 - Univac, Burroughs, IBM, DEC's PDP machines, Atari, Commodore and TI:
There's even more if you start here and drill down:
(Including the Large Scale Systems Museum)

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Originally shared by Aaron D
It's here! The newest Issue of Kick Start, the official magazine of The Amigos Podcast, is out! This month they delve into the Atari Box and shared fond memories with Amigos’ John with his first computer.

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Lamo-Lem ZX80 Manual and Assorted Materials

Leo Ferres acquired a Sinclair ZX80 computer which came with a manual, a demo cassette and other assorted materials produced by Lamo-Lem Laboratories in La Jolla, California. Now he made high resolution scans of these materials available, "in case someone else, like me, is interested in these technologies and the 'early history' of home computing, Sinclair in particular." – I guess, you probably are!

Blog post (Medium):


In case Medium isn't to last as long as G+, here are links to the various scans (PDF) of "The ZX80 Home Computer Package":

Manual covers:
Manual pages:
Reference cards:
Coding sheet:

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Nice hack.

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This week, a different take on 6502 emulation: the ICE, or in-circuit-emulator. This used to be the ordinary meaning of "emulator" - an expensive box of tricks with a 40 pin header on an umbilical, which you'd plug into the 6502 socket of your system so you could trace, single-step, and otherwise debug your hardware or software. But - Missile Command? What's the link? Well, your very expensive ICE can be used to reverse engineer a video game, then you can design and sell speed up kits, new ROMs, to make the game more difficult and get the money flowing again. It's well known that players who never die are not very profitable.
"""Armed with a GenRad 6502 microprocessor emulator (which they bought for $25,000 thanks to a parent's loan) and a TRS-80, Golson and his team stayed up all hours copying disassembled code from Missile Command by scratch. "You had to sit next to the TRS-80 and type it up live," Golson remembered."""
They sold thousands of speed up kits at $250 each.
Much more recently, you can do something similar, using an FPGA board to plug into your 6502 socket, which has a 6502 model in it as expected, but also breakpoint and tracing hardware and a second CPU to run a command line interface: extremely useful for testing and debugging hardware and software, and much more affordable than the Genrad system. See here:

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Originally shared by Aaron D
Aaron and Boat are back with episode 107 of The Amigos - Everything Amiga Podcast! This time we take a look at what could be the KING of all Amiga budget titles, Team 17's Qwak!

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Originally shared by The Guru Meditation
NEW VIDEO | Amiga Forever 7 Emulation (New Features) 4K UHD | Bill and Anthony give an overview of some of the key new features in Amiga Forever 7 including, Playlists, Autostart, Launching from Windows, and 4K Upscaling
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