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Comment: Same with SOLAR16 in france (Score 1) 336

by lolop (#44051859) Attached to: PDP-11 Still Working In Nuclear Plants - For 37 More Years

These systems, built by Telemecanique in 70's, are used in nuclear power-plants, and many are still active (more than 16000 were sold worldwide, in europe they sold similar quantity as PDP11 units).

As nuclear plant control software have been validated for these computers, devices control are interfaces with their bus, they are not easy (and very expensive) to replace (I've seen devices with memory + battery + DAT unit having same IO interface as old cartridge disks they replaced).
They have nice features considering the time they were built: failure detection and correction, high availability, realtime OS. See http://fr.wikipedia.org/wiki/Solar_(ordinateur) (sorry, found no page in english)

Comment: Complicated and out of dated (Score 1) 317

by lolop (#35088956) Attached to: 19-Year-Old Makes Homemade Solar Death Ray

He choosed a very complicated way to just build a solar oven ("four solaire" in french).
http://www.google.com/images?q=four+solaire
http://www.google.com/images?q=solar+oven

Reading the new, I thought I will see a fool building a new solar plant in his garden... Like (in smaller size) the one in Spain (PS10), or the one in france (Odeillo).
http://www.ecosources.info/images/energie_industrie/Tour-solaire-concentration-PS10.jpg
http://www.heliome-solaire.fr/l_energie-solaire/utiliser-l_energie-solaire/four-solaire-odeillo.jpg

Note: if its just to burn some stuff, my chidren use a magnifying glass and its enough.

Comment: 100y for the media - how long for read device ? (Score 1) 267

by lolop (#32688200) Attached to: SanDisk WORM SD Card Can Store Data For 100 Years

Some medical devices used Magneto-Optical media for recording huge data examination.
But... builder for media and reader said it will stop this technology (too old).

So, how long will we have de devices to read all these media ?
How long will they produce the media to fill in still running devices ?

A study for archiving nuclear location informations conclued that the better solution was... paper (not common paper, but paper with just printed and eye readable informations).

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