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GeneralRe: Becoming more common Pin
Nelek10-Dec-20 7:53
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GeneralHear me out: A thought-controlled air freshener! Pin
Johnny J.9-Dec-20 23:35
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GeneralRe: Hear me out: A thought-controlled air freshener! Pin
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GeneralWSO CCC OTD - 2020-12-10 Pin
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GeneralRe: WSO CCC OTD - 2020-12-10 Pin
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GeneralRe: WSO CCC OTD - 2020-12-10 - Winner Pin
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GeneralBored and a little spare money left over? Pin
CodeWraith9-Dec-20 21:34
MemberCodeWraith9-Dec-20 21:34 
I found something on FleaBay. Something from around 1977. For the time it was impressively compact, yet still has graphics and bus slots for expansion. Just looknat the Altair, which is just a year older. And a hex keyboard to enter your programs. The first expansions I would suggest are Two cheap ICs (an OpAmp to connect a tape recorder as storage for your programs and a level shifter for RS232 to connect to a terminal) and a ROM for the drivers. Maybe also a tiny RAM expansion while you are at it.

This is a very early version, probably even the very first. It's just one step beyond the original DIY wire wrap version. The processor still has the original ceramic package (but not the graphics chip). If both were in white ceramic packages, the price might even be justified. White ceramic packages were reserved for RCA's preproduction series. However, it's the closest you can ever get to own a computer from the time when you could not yet buy them in stores and also not completely homegrown. I doubt that there are 1000 of them left in the entire world that still work. One of them would be mine and you would only get it over my undead body. Smile | :)

Look here![^]

Edit: Looking at the picture of the back side, I must say that the soldering looks amateurish. I would redo it completely. And that gash at the processor socket looks nasty.
I have lived with several Zen masters - all of them were cats.

His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.


modified 10-Dec-20 3:45am.

GeneralRe: Bored and a little spare money left over? Pin
Kornfeld Eliyahu Peter9-Dec-20 21:41
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith9-Dec-20 22:12
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GeneralRe: Bored and a little spare money left over? Pin
Kornfeld Eliyahu Peter9-Dec-20 22:24
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith9-Dec-20 22:53
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GeneralRe: Bored and a little spare money left over? Pin
Greg Utas10-Dec-20 0:55
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith10-Dec-20 1:27
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GeneralRe: Bored and a little spare money left over? Pin
Greg Utas10-Dec-20 1:34
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith10-Dec-20 2:46
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GeneralRe: Bored and a little spare money left over? Pin
Greg Utas10-Dec-20 2:54
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith10-Dec-20 3:01
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GeneralRe: Bored and a little spare money left over? Pin
Greg Utas10-Dec-20 3:24
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith10-Dec-20 3:32
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GeneralRe: Bored and a little spare money left over? Pin
Greg Utas10-Dec-20 4:14
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith10-Dec-20 6:57
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GeneralRe: Bored and a little spare money left over? Pin
Greg Utas10-Dec-20 9:02
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GeneralRe: Bored and a little spare money left over? Pin
CodeWraith10-Dec-20 9:24
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RantAll lies! Pin
Kornfeld Eliyahu Peter9-Dec-20 19:17
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On which operating systems are you writing code?
Let's see if things have changed since we last ran this. "writing code" meaning editing, building, and running the code on that OS.
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