mersenneforum.org When will HD and flash drive prices converge?
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 2007-04-27, 23:27 #1 jasong     "Jason Goatcher" Mar 2005 3·7·167 Posts When will HD and flash drive prices converge? I'm attempting to figure out approximately when hard drive and flash drive prices will converge. I'm putting this in the Hardware section because I'm convinced that people will be interested in the answer, even if they're not interested in the mathematics. Here are the facts we're dealing with: flash drive space costs approximately 5 times as much as hard drive space. hard drive space costs approximately half as much every 12 months. flash drive space costs approximately half as much every 9 months. So, assuming these are absolutes, even though we know they're just heuristics, when do they converge?
 2007-04-27, 23:54 #2 cheesehead     "Richard B. Woods" Aug 2002 Wisconsin USA 22·3·641 Posts Solve 5 * 2-M/9 = 2-M/12 where M = number of months from now
2007-04-28, 00:14   #3
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"Tim Sorbera"
Aug 2006
San Antonio, TX USA

2×5×7×61 Posts

Quote:
 Originally Posted by cheesehead Solve 5 * 2-M/9 = 2-M/12 where M = number of months from now
I ran it on my calculator, and, assuming the numbers jasong provided are perfect and constant, it will be ~83.59 months from now. That's ~12 days under 7 years, which means it will be on April 15th, 2014 that their prices converge.

 2007-04-30, 04:12 #4 moo     Jul 2004 Nowhere 809 Posts wouldn't you need to factor in the fact that new mfg methods and different technologies that would reduce the cost of production of flash drives and replacement of hard drives with something else causing there prices to go up.
2007-04-30, 06:45   #5

"Richard B. Woods"
Aug 2002
Wisconsin USA

11110000011002 Posts

Quote:
 Originally Posted by moo wouldn't you need to factor in the fact that new mfg methods and different technologies that would reduce the cost of production of flash drives and replacement of hard drives with something else causing there prices to go up.
Sure -- just give us the appropriate numbers! :-)

With what jasong gave (which may already include the factors you mention), it's ~7 years. Besides, it's only an estimate either way.

Last fiddled with by cheesehead on 2007-04-30 at 06:47

 2007-12-21, 16:54 #6 ewmayer ∂2ω=0     Sep 2002 República de California 22·3·7·139 Posts Apple to Unveil a FlashBook?
 2007-12-21, 17:43 #7 henryzz Just call me Henry     "David" Sep 2007 Cambridge (GMT/BST) 2×2,969 Posts elementary algebra
2007-12-21, 20:10   #8
ewmayer
2ω=0

Sep 2002
República de California

22×3×7×139 Posts

Quote:
 Originally Posted by henryzz elementary algebra
"Is that -40 degrees Centigrade, or Fahrenheit?"

2007-12-21, 20:53   #9
xilman
Bamboozled!

"𒉺𒌌𒇷𒆷𒀭"
May 2003
Down not across

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Quote:
 Originally Posted by ewmayer "Is that -40 degrees Centigrade, or Fahrenheit?"
Yes.

 2007-12-22, 09:30 #10 michaf     Jan 2005 479 Posts I'd say the answer is 42

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