Quantum something or other

aurashift · 2018-10-04, 23:15

https://m.slashdot.org/story/346744

0PolarBearsHere · 2018-10-05, 08:38

I tried to sign up, but they don't like Australians apparently.

retina · 2018-10-05, 09:08

I don't see practical any use for those D-Wave things ATM.

Perhaps one day when they (or anyone) have some real quantum computers, and can break kilobit numbers, then they'll have something interesting.

CRGreathouse · 2018-10-05, 15:36

Quote:

Originally Posted by retina

I don't see practical any use for those D-Wave things ATM.

Me either.

Quote:

Originally Posted by retina

Perhaps one day when they (or anyone) have some real quantum computers, and can break kilobit numbers, then they'll have something interesting.

If all D-Wave makes are annealers, I don't foresee them being useful. No one knows how to make problems that quantum annealers solve faster than classical computers. That sharply contrasts with the case of general quantum computation.

2018-10-05, 16:07

Quote:

Originally Posted by CRGreathouse

Me either.

If all D-Wave makes are annealers, I don't foresee them being useful. No one knows how to make problems that quantum annealers solve faster than classical computers. That sharply contrasts with the case of general quantum computation.

https://physicsworld.com/a/intel-unv...nducting-chip/

49 qubits is really a few qubits, we need millions to make a viable quantum processor.

LaurV · 2018-10-06, 02:55

Well, we can start googling about vacuum tubes and read few wiki articles about the computers of the 30's which had like 500 vacuum tubes and each 3 or 4 or 5 of them made one single bit of memory.... Then look now, 80 year later, us arguing here about terabytes of RAM...

VBCurtis · 2018-10-06, 04:56

Quote:

Originally Posted by LaurV

Well, we can start googling about vacuum tubes and read few wiki articles about the computers of the 30's which had like 500 vacuum tubes and each 3 or 4 or 5 of them made one single bit of memory.... Then look now, 80 year later, us arguing here about terabytes of RAM...

You heard it here first: LaurV says we should get quantum punch cards ready for the coming revolution.

LaurV · 2018-10-06, 08:39

Haha, a good point!

(and to make things right, I read those articles myself, you know, it is catchy

and after I posted them, I took a tour by myself... actually, those computers had memories with capacitors, and the tubes were not used for memory bits, but for processing them).

GP2 · 2018-10-06, 15:03

We can laugh at those primitive old first-generation computers, but remember that five Mersenne primes were discovered in a bit more than eight months, in 1952.

Dr Sardonicus · 2018-10-06, 23:15

Quote:

Originally Posted by GP2

We can laugh at those primitive old first-generation computers, but remember that five Mersenne primes were discovered in a bit more than eight months, in 1952.

According to an answer at quora,

Quote:

The Apollo Guidance Computer (AGC) was a built of 4100 ICs, each of which was a a 3 input RTL NOR gete for a total of approx 12,300 transistors. It ran at 43 KHz and could complete an instruction in 24 ms. for a total performance of about 41.6 Instructions per Second.

science_man_88 · 2018-10-06, 23:23

Quote:

Originally Posted by Dr Sardonicus

According to an answer at quora,

aka 1032 cycles per instruction.

2018-10-04, 23:15	#1
aurashift Jan 2015 11·23 Posts	Quantum something or other https://m.slashdot.org/story/346744

2018-10-06, 02:55	#6
LaurV Romulan Interpreter Jun 2011 Thailand 22231₈ Posts	Well, we can start googling about vacuum tubes and read few wiki articles about the computers of the 30's which had like 500 vacuum tubes and each 3 or 4 or 5 of them made one single bit of memory.... Then look now, 80 year later, us arguing here about terabytes of RAM... Last fiddled with by LaurV on 2018-10-06 at 03:03 Reason: link

2018-10-06, 15:03	#9
GP2 Sep 2003 13·199 Posts	We can laugh at those primitive old first-generation computers, but remember that five Mersenne primes were discovered in a bit more than eight months, in 1952. Last fiddled with by GP2 on 2018-10-06 at 15:03

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2018-10-05, 08:38	#2
0PolarBearsHere Oct 2015 2·7·19 Posts	I tried to sign up, but they don't like Australians apparently.

2018-10-05, 09:08	#3
retina Undefined "The unspeakable one" Jun 2006 My evil lair 6115₁₀ Posts	I don't see practical any use for those D-Wave things ATM. Perhaps one day when they (or anyone) have some real quantum computers, and can break kilobit numbers, then they'll have something interesting.

2018-10-06, 08:39	#8
LaurV Romulan Interpreter Jun 2011 Thailand 3³·347 Posts	Haha, a good point! (and to make things right, I read those articles myself, you know, it is catchy and after I posted them, I took a tour by myself... actually, those computers had memories with capacitors, and the tubes were not used for memory bits, but for processing them).