Excellent talk.
1 day ago
January 28, 2012Pipe Logic
Delightfully useless epiphany: Suppose the null-byte is an electron. Then, /dev/zero provides an infinite supply of electrons and /dev/null has an infinite appetite for them. Let’s call these devices Vss and Vdd, respectively.
In this model, a UNIX pipe acts like a wire, that is, a conductor with parasitic capacitance. If the pipe is connected to Vss, its pipe buffer in kernel space quickly fills up with null-bytes, and the pipe acts like a negatively charged metal plate. If it is connected to Vdd, the pipe buffer is drained, and the pipe acts like a positively charged metal plate.
Pipes may thus carry logic signals: A pipe that is filled with null-bytes corresponds to a logic zero, and a pipe that is completely empty corresponds to a logic one. A pipe that contains some null-bytes, but is neither full nor empty, corresponds to a voltage in the undefined range, and will act as a one or a zero depending on how we measure it.
[Source]
1 week ago
January 21, 2012
Audio/video: 10/10 (AV masterpiece), gameplay/fun: 5/10 (short, way too easy, no bosses - no final boss!?, boring plot). Disappointment of the year. Waiting for Ezio …
2 months ago
November 6, 20113 months ago
October 30, 2011jaoz:
Sarah Blasko - All I Want | SK Session (by SoulKitchenfr)






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