✧✦Catherine✦✧ @whitequark@treehouse.systems
Public

no, yes, not unless i look it up because the WiFi card switches it many times a second, i think QPSK is just 4-QAM, iw dev wlp59s0 link and look it up in the MCS table, yes, in which JVM? in HotSpot you could spend a decade studying it and still not know everything but the basics yes sure, at a high level but not enough to lay out standard cells without a reference on hand

(via @tef)

But does anybody really understand all of the levels? Do you know about the interrupts that fire inside of your operating system when you actually strike the enter key? Do you know which modulation scheme being used by the 802.11ax Wi- Fi protocol in your laptop right now? Could you explain the difference between quadrature amplitude modulation (QAM) and quadrature phase shift keying (QPSK), and could you determine which one your laptop is currently using? Are you familiar with the relaxed memory model of the ARM processor? How garbage collection works inside of the JVM? Do you understand how the field effect transistors inside the chip implement digital logic?
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