The company E2V has developed a prototype device that uses a radio-frequency pulse to shut down a car’s engine at range, according to a report from the BBC. While the range of the device is fairly short, it worked on a handful of cars and motorbikes and could also potentially be used on boats.
A single bitcoin is now worth over $1,000, but the process of mining for the digital currency — in which people devote computing power to facilitate global Bitcoin transactions and secure the currency's network — is growing increasingly expensive. Serious miners have started to build dedicated facilities for the sole purpose of Bitcoin mining. Journalist Xiaogang Cao visited one such center in Hong Kong, the "secret mining facility" of ASICMINER, reportedly located in a Kwai Chung industrial building.
British artist Kyle Lambert spent quite a bit of time creating a digital painting and by the looks of it, it was time well spent. The drawing is an insanely realistic portrait of Morgan Freeman. The image you see above isn't a photo of Freeman photoshopped onto an iPad — that's Lambert's actual work of art.
Somewhere between the turkey and the eggnog, someone in your family is almost certainly going to mention their plans to pick up a cheap tablet or TV set. Or maybe someone will bring up the nearest mall electronics store’s “amazing” deals on HDMI cables.
SuperUser reader KingNestor is curious about how much RAM a 64-bit computer can hold:
I’m reading through my computer architecture book and I see that in an x86, 32bit CPU, the program counter is 32 bit.
So, the number of bytes it can address is 2^32 bytes, or 4GB. So it makes sense to me that most 32 bit machines limit the amount of ram to 4gb (ignoring PAE).
Am I right in assuming that a 64bit machine could theoretically address 2^64 bytes, or 16 exabytes of ram?!