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Comment Re:Too many cores. (Score 1) 68

They've taken a crappy, underpowered chip that was trimmed to the bone to try and make something that competes with Arm, and are hacking on extras to make it sound more like a Xeon.

So it's like taking Pentium 3 and hacking on extras from Pentium 4 (the actual innovations around the core, not the GHz race) to make Pentium M, then putting several of these on a single die to make the Core series? Not a bad idea.

Or could this be Intel's trick, that they've taken a Core 2 Mobile CPU, scraped off the Penryn label, reprinted it as Atom++, and are shipping those?

I think this already happened a while ago, in a way. For instance, the original Atoms didn't have out-of-order execution, but the later ones do: It looks a bit like the Pentium brand that lives on as the low end of Cores.

BTW, I have one of the earlier in-order Atoms running happily in a server-ish machine where GPUs do all the heavy lifting. It's perfect for the job, and I guess more Atom cores would be great for a lot of server tasks, at least given enough I/O. Ideally, something like ARM or MIPS would probably be even better, but good luck finding (a) a suitable mobo with all the PCIe slots and (b) AMD/Nvidia binary drivers.

Comment Re:Some hints (Score 1) 112

(1) If you are near sighted (which I am), have your the prescription *slightlt* detuned, so it isn't perfect. Mine is detuned by I think around 0.25. This reduces eye strain by a HUGE amount. You won't be able to read highway signs from far away but who needs to do that any more with gps nav?

Ah, I was just posting about this below, so let me ask: why not have separate glasses for computer work?

Comment What about optical power? (Score 3, Informative) 112

I'm myopic, and I often read books without glasses, but the computer screen is a little too far for that. So I sometimes find it easier to use my old glasses for computing, compared to my regular glasses with a stronger correction. Around here, "computer glasses"* refer to glasses with the optical power optimized for screen distances. It's something you can get from your employer as a health benefit if you work at a screen all day.

I also use redshift on Linux to tone down the blues (the colour component) during the night, but it's a completely orthogonal issue. Plus if you're worried about computing ruining your sleep, there's also the psychological buzz, so I'm not sure which one dominates in practice.

*(One common term is "päätelasit" meaning "terminal glasses", not necessarily because you're so old they're the last glasses you'll ever need, but because our computing term-inology is ancient and we still think in terms of terminals.)

Comment Re:Pinouts (Score 1) 611

RS232 is still pretty common with the electronics hackers.

A lot of modern embedded computers such as modems/routers have a TTL level serial port somewhere on the board. It's nice to have an extra way into the machine if its network is down, for example.

or you can make one in software.

Or software-as-hardware when programming FPGAs. Many FPGA boards have one traditional RS232 port, but it's only provided with voltage converters, so you need to program the actual signaling logic. But if you only need TTL level signals, you can skip the traditional voltages and use plain FPGA pins.

Comment Re:Gravity wave != Gravitational wave (Score 4, Informative) 82

Let me wikipedia that for you: -- waves on the surface of water whose dynamics is dominated by gravity. See for smaller ripples dominated by surface tension. -- what the fucking article is about

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