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User: Rick.C

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  1. Re:Base 2 - Because you can add by comparing... on Hacker's Delight · · Score: 0

    If you compare two bits, the sum is zero if they're the same (both zero or both one). If they are different, the sum is one. This simple comparison (which is also an addition) can be performed by a single XOR gate, which is like, four transistors.

    Yes, you also have to include carry-out and carry-in, but that just amounts to a few more gates. A 1-bit full-adder circuit uses only about ten or so transistors.

    That's why silicon computers use base-2: the simple math can be implemented in simple logic gates.

    Rick.C

  2. Re:no trespassing! on Killing Others' Malicious Processes · · Score: 0

    The severity of the response must be appropriate for the severity of the attack.

    If your neighbor is merely annoying you by knocking in your door, you only have the right to call the police.

    If he is punching you in the face, you have the right to punch back, but not to shoot him.

    If he has a gun, knife or other lethal weapon, you have the right to shoot him.

    So translate this into degrees of severity and/or urgency of a system attack and maybe we can come up with some appropriate responses. Maybe notifying an attacker's ISP and waiting several hours or days is OK for a "nuisance" attack, but not for an attack that keeps taking down your mission-critical system.

    Rick.C

  3. Re:Optimism: The Media Monsters Will Lose on Interview with EFF's Fred Von Lohmann · · Score: 1

    Yes, the old die, but they seem to be replaced by younger versions of their own kind.

    Having grown up in the '60s and '70s, I expected to see a day when "our government" was peopled by peace-niks and environmentalists. Instead, we are itching to invade Iraq and seem to be handing national forests over to loggers at every opportunity.

    There are exceptions, of course, but the general rule seems to be that the sons and daughters of the powerful inherit the power. Maybe it's nepotism, or maybe it's a genetic predispostion to want power. Whatever the cause, the only way to change things is for YOU to secure power and influence and then pass it on to YOUR children.

    Rick.C - .sig-less, as were my parents

  4. Higher voltage AND higher speed?? on Japan Developing Diamond-based Semiconductors · · Score: 1

    Okay, I'm not a double-E, but aren't "higher speed" and "higher voltage" at opposite ends of the trade-off spectrum? It takes a finite time for the voltage to rise from "0" level to "1" level. A higher voltage threshold for the "1" ("ON") state should translate to a longer rise-time, si?

    Isn't that why faster CPUs have lower core voltages? Sure, you also get lower heat dissipation and power consumption, but isn't the primary reason speed?

    Rick.C - "Cleanliness is next to Godliness" -- um.. you must be using a -seriously- abridged dictionary!