Saturday, January 16th, 2021

Time	Event
12:02a	Xbox's 'Instant On' Feature Could Consume 4 Billion kWh By 2025 An anonymous reader quotes a report from Ars Technica: The "instant on" feature that's activated by default on new Xbox Series S/X consoles could suck up a total of 4 billion kWh -- the equivalent of a year's operation for a large power plant -- from US owners alone through 2025. That's according to a preliminary report released this week from the Natural Resources Defense Council, an environmentally focused nonprofit advocacy group. As the name implies, the "instant on" feature of the Series S/X (and the Xbox One before it) lets users skip the usual startup time when turning the console back on. That saves about 10 to 15 seconds of waiting per power cycle on the Series S/X, down from about 45 seconds on the Xbox One. "Instant on" standby also lets the system check periodically for system updates in order to download and install them in between play sessions. But leaving the "instant on" feature active means the Xbox Series S/X draws nine to 10 watts of power 24 hours a day -- even when it's not being actively used -- compared to less than 1W if the standby settings are switched to "energy saving" mode. The Xbox Series S/X initially drew 25 to 28W of "instant on" standby power at launch, but a recent firmware update caused a dramatic reduction, placing the new systems below the ~13W drawn by the Xbox One's "instant on" mode. The PlayStation 5, by contrast, uses between 1 and 2 watts when sitting idle in "rest mode." Read more of this story at Slashdot. (Comment on this)
12:45a	Apple Plans First iMac Desktop Redesign In Nearly a Decade In addition to upgraded MacBook Pros, Bloomberg reports that Apple is also "planning the first redesign of its iMac all-in-one desktop computer since 2012," as it shifts away from Intel to its own silicon. From the report: The new models will slim down the thick black borders around the screen and do away with the sizable metal chin area in favor of a design similar to Apple's Pro Display XDR monitor. These iMacs will have a flat back, moving away from the curved rear of the current iMac. Apple is planning to launch two versions -- codenamed J456 and J457 -- to replace the existing 21.5-inch and 27-inch models later this year, the people said, asking not to be identified because the products are not yet announced. The new models will use next-generation versions of Apple's Mac processors like the upcoming 2021 MacBook Pros. The iMac redesign will be one of the biggest visual updates to any Apple product this year, according to people familiar with the company's roadmap. Apple is also working on a pair of new Mac Pro desktop computers, its priciest Mac machines that don't come with a screen included, the people said. One version is a direct update to the current Mac Pro and will continue to use the same design as the version launched in 2019. Apple has discussed continuing to use Intel processors for that model rather than moving to its own chips. The second version, however, will use Apple's own processors and be less than half the size of the current Mac Pro. The design will feature a mostly aluminum exterior and could invoke nostalgia for the Power Mac G4 Cube, a short-lived smaller version of the Power Mac, an earlier iteration of the Mac Pro. Apple has also reportedly started development of a cheaper external monitor to sell alongside the Pro Display XDR. "The cheaper monitor would feature a screen geared more for consumer than professional use and wouldn't have the brightness and contrast ratio of the top-tier offering," reports Bloomberg. Read more of this story at Slashdot. (Comment on this)
1:00p	Quixotic Californian Crusade To Officially Recognize the Hellabyte An anonymous reader quotes a report from The Register: In 2010, Austin Sendek, then a physics student at UC Davis, created a petition seeking recognition for prefix "hella-" as an official International System of Units (SI) measurement representing 10^27. "Northern California is home to many influential research institutions, including the University of California, Davis, the University of California, Berkeley, Stanford University, and the Lawrence Livermore and Lawrence Berkeley National Laboratories," he argued. "However, science isn't all that sets Northern California apart from the rest of the world. The area is also the only region in the world currently practicing widespread usage of the English slang 'hella,' which typically means 'very,' or can refer to a large quantity (e.g. 'there are hella stars out tonight')." To this day, the SI describes prefixes for quantities for up to 10^24. Those with that many bytes have a yottabyte. If you only have 10^21 bytes, you have a zettabyte. There's also exabyte (10^18), petabyte (10^15), terabyte (10^12), gigabyte(10^9), and so on. Support for "hella-" would allow you to talk about hellabytes of data, he argues, pointing out that this would make the number of atoms in 12 kg of carbon-12 would be simplified from 600 yottaatoms to 0.6 hellaatoms. Similarly, the sun (mass of 2.2 hellatons) would release energy at 0.3 hellawatts, rather than 300 yottawatts. [...] The soonest [a proposal for a "hella-" SI could be officially adopted] is in November 2022, at the quadrennial meeting of the International Bureau of Weights and Measures (BIPM)'s General Conference on Weight and Measures, where changes to the SI usually must be agreed upon. The report notes that Google customized its search engine in 2010 to let you convert "bytes to hellabytes." A year later, Wolfram Alpha added support for "hella-" calculations. "Sendek said 'hellabyte' initially started as a joke with some college friends but became a more genuine concern as he looked into how measurements get defined and as his proposal garnered support," reports The Register. He believes it could be useful for astronomical measurements. Read more of this story at Slashdot. (Comment on this)
6:08p	Superconducting Microprocessors? Turns Out They're Ultra-Efficient Long-time Slashdot reader AmiMoJo quotes IEEE Spectrum: Computers use a staggering amount of energy today. According to one recent estimate, data centers alone consume two percent of the world's electricity, a figure that's expected to climb to eight percent by the end of the decade. To buck that trend, though, perhaps the microprocessor, at the center of the computer universe, could be streamlined in entirely new ways. One group of researchers in Japan have taken this idea to the limit, creating a superconducting microprocessor — one with zero electrical resistance. The new device, the first of its kind, is described in a study published last month in the IEEE Journal of Solid-State Circuits ... The price of entry for the niobium-based microprocessor is of course the cryogenics and the energy cost for cooling the system down to superconducting temperatures. "But even when taking this cooling overhead into account," says Christopher Ayala, an Associate Professor at the Institute of Advanced Sciences at Yokohama National University, in Japan, who helped develop the new microprocessor, "The AQFP is still about 80 times more energy-efficient when compared to the state-of-the-art semiconductor electronic device, [such as] 7-nm FinFET, available today." Read more of this story at Slashdot. (Comment on this)

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