Because they all cheated on their coursework and got graded on a curve for exams. Source: I was a TA for an intro CS course.
Readit Newsanaphor commented on Ask HN: Why do many CS graduates lack foundational knowledge? · Posted by u/platzhirsch
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anaphor commented on Ask HN: Can you recommend a book to learn basic electrical concepts/engineering? · Posted by u/TurkishPoptart
Watch EEVblog's playlist on DC theory, and then play around with a breadboard and simulations using something like circuitjs. Get some basic tools such as a soldering iron (and solder/wick/sponge/etc), breadboard, wires, and a collection of components like resistors, capacitors, and LEDs, and so on. r/AskElectronics has a guide for all of the practical stuff you need. Pick a project you actually find interesting and work on it (after learning how to safely use your tools and components).
Lots of people get started with things like using a microcontroller to light up some LEDs and so on. That will introduce you to basic concepts like how transistors work as well if you dig into it.
https://www.youtube.com/watch?v=xSRe_4TQbuo&list=PLvOlSehNtu...
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that's because your teksavvy service is over Shaw or Telus lines. This outage was out of Teksavvy's hands: if you were in their Rogers-based territory on DOCSIS, you were down with the ship.
I have Teksavvy via Cogeco and had no issues (obviously). I just discovered Rogers owns 41% of their shares though :|
anaphor commented on Five major Canadian banks mysteriously go offline in hours-long outage finbold.com/five-major-ca... · Posted by u/_0ffh
These are just reports people made that the sites were down. Not actual data from monitoring tools or something. I used my Canadian banking website a bunch of times yesterday and had no issues. Banking websites go down for maintenance or randomly start acting slow because of the crappy infrastructure they're built on, or because of other reasons located between your computer and their servers. Nothing I've seen shows any actual evidence that anything out of the ordinary happened. Just confirmation bias.
And cut off the free dopamine sources. Make your phone's screen black and white. Use an extension to block Twitter, reddit, YouTube and HN. Learn to be bored again like when you were young.
Or block all of the non-educational youtube channels. Personally a good portion of my youtube usage is educational videos about electronics now. It feels like much less of a waste of time than twitter or instagram.
anaphor commented on Memories of the “Sneakers” Shoot (2012) web.archive.org/web/20130... · Posted by u/ColinWright
"I leave message here on service, but you do not call." XD This line was referenced in "Halt and Catch Fire." Good stuff.
They referenced the movie on Stranger Things as well with a line similar to the one River Phoenix's character says: "It's fascinating what 50 bucks will get you at the county recorder's office"
anaphor commented on Why It’s So Difficult – and Costly – To Secure Chips semiengineering.com/why-i... · Posted by u/PaulHoule
How Small Is Small? From PC Mag https://www.pcmag.com/encyclopedia/term/process-technology
To understand how tiny these transistor elements are, using state-of-the-art 5 nm feature sizes as an example, 16 thousand of them laid side-by-side are equal to the cross section of one human hair. See half-node and active area.
Semiconductor Feature Sizes (approximate for all vendors)
Nanometers Micrometers Millimeters
Year (nm) (µm) (mm)
1957 120,000 120.0 0.12
1963 30,000 30.0 0.03
1971 10,000 10.0 0.01
1974 6,000 6.0
1976 3,000 3.0
1982 1,500 1.5 **
1985 1,300 1.3 **
1989 1,000 1.0 **
1993 600 0.6 **
1996 350 0.35 **
1998 250 0.25 **
1999 180 0.18 **
2001 130 0.13 **
2003 90 0.09 **
2005 65 0.065
2008 45 0.045
2010 32 0.032
2012 22 0.022
2014 14 0.014
2017 10 0.010
2018 7 0.007
2020 5 0.005
2022 3 0.003
2024 2 0.002 ***
You can even place a backdoor on a circuit without any noticeable physical changes (other than chemical differences which are extremely hard to detect). You basically change which chemicals are used to "dope" the transistors, which changes their polarity.
It basically uses the priority queue to store all the composites up to a certain point and then you can assume the next one is prime.
I had some (admittedly not well written) code for it too https://gist.github.com/weskerfoot/4699275
It can also incorporates the wheel factorization optimization mentioned in this article.