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?!
A $500 “nano-camera” that can operate at the speed of light has been developed by researchers in the MIT Media Lab.
The three-dimensional camera, which was presented last week at Siggraph Asia in Hong Kong, could be used in medical imaging and collision-avoidance detectors for cars, and to improve the accuracy of motion tracking and gesture-recognition devices used in interactive gaming.
The Federal Communications Commission will propose allowing passengers to use their cellphones on airplanes, setting up a debate that will pit the technically possible against the socially tolerable.
While phone use would still be restricted during takeoff and landing, the proposal would lift an FCC ban on airborne calls and cellular data use by passengers once a flight reached 10,000 feet.
In a little booth tucked in the corner of the SC13 supercomputing conference here this week may be the next Intel.
There you'll find Max Shulaker, a Stanford University graduate student, ready to explain carbon nanotube digital circuits to anyone stopping by. Shulaker is part of team of researchers building such circuits, and will be presenting to attendees their research on "the first" computer built using carbon nanotubes, or CNTs.