falava's comments

falava | 8 years ago | on: Reversible Computing (2016) [video]

> why does bit erasure end up in energy expenditure

Following this explanation from the link:

"Theoretically, room‑temperature computer memory operating at the Landauer limit could be changed at a rate of one billion bits per second with energy being converted to heat in the memory media at the rate of only 2.85 trillionths of a watt (that is, at a rate of only 2.85 pJ/s). Modern computers use millions of times as much energy."

I understand that to flip a 1 to a 0 it is necessary to dissipate that energy into heat.

Edit: But also I'm not sure how reversibility avoids that.

falava | 9 years ago | on: Ask HN: Non-technical readers of HN, why are you here?

See also this:

https://en.wikipedia.org/wiki/Hacks_at_the_Massachusetts_Ins...

> Hacks at the MIT are practical jokes and pranks meant to prominently demonstrate technical aptitude and cleverness

Edit: And this...

https://en.wikipedia.org/wiki/Hacker_culture

> Therefore, the hacker culture originally emerged in academia in the 1960s around the MIT's Tech Model Railroad Club (TMRC) and MIT AI Laboratory.

> Richard Stallman explains about hackers who program:

> What they had in common was mainly love of excellence and programming. They wanted to make their programs that they used be as good as they could. They also wanted to make them do neat things. They wanted to be able to do something in a more exciting way than anyone believed possible and show "Look how wonderful this is. I bet you didn't believe this could be done."

falava | 9 years ago | on: Ask HN: Non-technical readers of HN, why are you here?

There is a book writen by Paul Graham, creator of HN: Hackers and Painters[1]

And there is one tradition to call a hacker to someone who hacks(with software and hardware)[2], doing clever and/or ugly things, and that is not exactly to be a programmer (and also not exactly a security breaker, the other tradition for the hacker name[3])

I think that following the first tradition, the name of the site is well deserved.

[1] http://www.paulgraham.com/hackpaint.html

[2] https://www.merriam-webster.com/dictionary/hack

[3] http://duartes.org/gustavo/blog/post/first-recorded-usage-of...

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