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Random access memory (2016)

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Re: Random access memory (2016)

#4

Utterly brilliant! Anyone studying computer engineering should understand that Turing Machines exist outside of electricity, silicon and logic gates. This should be the first lesson of the first class of any computer engineering course.

[deleted]

Re: Random access memory (2016)

#5

Utterly brilliant! Anyone studying computer engineering should understand that Turing Machines exist outside of electricity, silicon and logic gates. This should be the first lesson of the first class of any computer engineering course.

Something like that time lapse video at the end could be shown to kids even in preschool.

Re: Random access memory (2016)

#7
This is not random access; the latency depends on the position of the read/write head over the spinning platter. Other analogies may be more apt.

Also I guess they could have just as well built that with a Pick and Place machine out of an electronics manufacturing company, but I guess UdK has an emphasis on things being hand-made and looking artsy.

Re: Random access memory (2016)

#8

Utterly brilliant! Anyone studying computer engineering should understand that Turing Machines exist outside of electricity, silicon and logic gates. This should be the first lesson of the first class of any computer engineering course.

Your comment made me think of this project that used water to build logic gates and half adders: http://www.blikstein.com/paulo/projects/project_water.html

Re: Random access memory (2016)

#9
post #7

This is not random access; the latency depends on the position of the read/write head over the spinning platter. Other analogies may be more apt. Also I guess they could have just as well built that with a Pick and Place machine out of an electronics manufacturing company, but I guess UdK has an emphasis on things being hand-made and looking artsy.

Modern RAM access time is not deterministic either. Certainly not on the modern desktop.

Re: Random access memory (2016)

#10
post #7

This is not random access; the latency depends on the position of the read/write head over the spinning platter. Other analogies may be more apt. Also I guess they could have just as well built that with a Pick and Place machine out of an electronics manufacturing company, but I guess UdK has an emphasis on things being hand-made and looking artsy.

It is random access because the device doesn't have to touch every grain of sand on the way to the one it intends to deal with next.

It's very similar to a spinning-platter hard drive: latency depends on rotational velocity of the platter and radial velocity of the read/write head. That the latency is quite high in this device doesn't make it any less random-access.

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