Erogazione di servizi informatici volti all'allungamento del ciclo di vita delle apparecchiature elettroniche ed informatiche, al fine di limitarne l'impatto ambientale tramite la prevenzione della produzione di rifiuti elettronici.
z.B. für stromsparenden Software-Router s.a. gebrauchtes WRAP-Board oder FOX-Board (für Anderes) oder http://www.soekris.com/
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IDE to CompactFlash adapters
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https://shop.bytemine.net/alix/alix-2d13-komplettpaket-cf.html
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http://pcengines.ch/alix2d13.htm
(buckling spring mechanism) http://www.overclock.net/computer-peripherals/491752-mechanical-keyboard-guide.html auch nett: http://www.youtube.com/watch?v=9yg3s77nAMQ http://mykeyboard.co.uk/microswitch/ Tim Tyler benutzt übrigens Fußpedale am Computer für PageUp/Down
Facebook betrieb 2009 rund 30.000 Server für 300 Mio Nutzer, mittlerweile hätte sich die Zahl lt. DatacenterKnowledge.com mind. verdoppelt Wie stellt man sich 30.000 Server vor? http://dennis-wisnia.de/wordpress/wp-content/uploads/2010/06/serververgleich.png einen 50er-Block kann man sich als Rack vorstellen
This post takes a look at the speed - latency and throughput - of various subsystems in a modern commodity PC, an Intel Core 2 Duo at 3.0GHz. I hope to give a feel for the relative speed of each component and a cheatsheet for back-of-the-envelope performance calculations. I’ve tried to show real-world throughputs (the sources are posted as a comment) rather than theoretical maximums. Time units are nanoseconds (ns, 10-9 seconds), milliseconds (ms, 10-3 seconds), and seconds (s). Throughput units are in megabytes and gigabytes per second. Let’s start with CPU and memory, the north of the northbridge:
Manufacturer of computer hardware and software including SPARC processors, SPARC and Opteron powered servers and workstations, Java and the Solaris Operating Environment.
This seems difficult, at first glance, but really, it’s not. At all. From the time you get all your hardware plugged in to the time you’re doing some massive parallel processing, depending on your needs, can be anywhere from 2 hours to 10 minutes. And