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Submission + - Cray-1 vs Raspberry Pi (roylongbottom.org.uk)

bobdevine writes: "In 1978, the Cray 1 supercomputer cost $7 Million, weighed 10,500 pounds and had a 115 kilowatt power supply. It was, by far, the fastest computer in the world. The Raspberry Pi costs around $70 (CPU board, case, power supply, SD card), weighs a few ounces, uses a 5 watt power supply and is more than 4.5 times faster than the Cray 1"

Comment Story is fake (Score 1) 212

[QUOTE]
An earlier version of this story included an anecdote told by US Air Force Col. Tucker Hamilton in a presentation at an international defense conference hosted by the Royal Aeronautical Society (RAS), about an AI-enabled drone that “killed” its operator in a simulation. On Friday morning, the colonel told RAS that he “misspoke,” and that he was actually describing a hypothetical “thought experiment,” rather than an actual simulation. He said that the Air Force has not tested any weaponized AI in this way, either real or simulated. This story has been corrected to reflect the new context of Hamilton’s remarks.

https://www.vox.com/future-per...

Comment nosomial infections (Score 1) 58

The word of the day is "nosocomial" meaning a disease you catch inside a hospital.

Doctors are uncertain how the Wuhan coronavirus is spread. The human-to-human transmission of SARS might have spread in hospitals due to diarrhea or from other bodily fluids besides the expected aerosols.

Comment transistor size is secondary (Score 1) 133

The limits for general purpose CPUs for the about a decade has been power/heat, not transistor size. In the 1990s-2000s, performance could be increased with faster clockrates and more on-chip caches. Since about 2005, when clockrates passed 3GHz, the CPU vendors embraced multiple cores and have cut power demands.

Moore's Law can continue with 3D chips. Maybe a CPU of 2025 will be built with a first layer of transistors that covers the entire areal plane just for caching and with additional layers built vertically for other uses. If so, the number of transistors per chip might be much higher than a CPU of 2016.

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