motz

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back to pdp and clones.

Not all clones had analogues at DEC product line, but most of them were very close to some model (not in quality though). All DEC software and Unixes runs on these computers without problems (in fact, Soviet users used adopted versions of software because the KGB stole ALL source codes for RT11 and RSX11 and made it freely distributed ...

¿kgb and a blink of open source?

also talking about "cyrillic and general nomenclature", provided by alexey chupahin:

I've been told that the Cyrillic V is best represented as W in the Roman alphabet. Thus, you're referring to the DWK-*, right?

Yes, DWK and DVK is the same name.

I've gotten information on 1801BM*, 1801VM*, and 1801WM*. Are these all the same thing, or are the letters really different? I believe the WM and VM to be the same. What is BM?

Yes, VM (WM) is BM in Cyrillic. Chips, exported to German or other countrieswas marked as 'BM', if I remember, so I write 'BM' instead 'VM' or 'WM'. Unfortunately, I don't know (and my friends) what is 'BM' meaning. All russian processors (DEC or Intel compatible) are marked as 'BM'. The letter 'K' before processor model(number) means 'ceramic box'. K1811BM1 for example.

Can "MC" be interpreted as "machine"? As in, an MC prefix means this is a model/system designator, as opposed to being a chip designator?

Hmm this is very interesting question.The first line of computers ( IBM/360 compatible ) and peripheral devices designed for it was named EC in cyrillic.(ES in English). EC means 'United Series' in Russian. DEC minicomputers PDP-11 series and peripheral devices was named 'CM'.(SM) 'CM' - 'Small Series'. CM-3, CM-4 are first models., CM1425 - one of the latest, with 2MB-4MB of memory, processor 1831BM1 (J-11 analogue). CM5508 - is 10MB hard disk, CM5509 - 30MB hard disk, CM6329 - Epson compatible matrix printer.

Series 'MC' is another. Usually MC is "smaller" than 'CM'. 'MC' means personal computer equipment. MC0585 - Elektronika-85, MC0502 - DWK's.

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early pcs

just to have this piece of pc-history in my closet también: thanx chris, as always :)

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Forgetting Curve

foerster about his life but also about hermann ebbinghaus and his method of measuring forgetting.

Mr. Ebbinghaus, at the turn of the century, measured the forgetting speed of people who tried to remember something. g

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