Dr. Volkan Tunalı's Personal Blog

Computer, Technology, Science, Art

Archive for September, 2010

Storage Cost over Years

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Every time I buy a new PC, either desktop or notebook, its hard disk capacity is larger than the previous one even though the total price of the PC is about equal. The same thing may apply for the other components of the PC like main memory capacity and CPU power, but hard disk capacity is something very different.

Matthew Komorowski has collected hard drive capacity/price data and created the graph below:

Storage cost over years
Source: http://www.mkomo.com/cost-per-gigabyte

Komorowski has also drawn a conclusion about the capacity/cost trend as:

Over the last 30 years, space per unit cost has doubled roughly every 14 months (increasing by an order of magnitude every 48 months)

Moreover, he has a formula for the cost as

cost = 10-0.2502(year-1980)+6.304

Below are two pictures from computer magazines of 80s. Incredible!

Written by Volkan TUNALI

September 18th, 2010 at 12:24 pm

Quote of the Day from Antoine de Saint-Exupéry

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Saint ExuperyHere comes the quote of the day from Antoine de Saint-Exupéry who is best remembered for his novella The Little Prince (Le Petit Prince):

Perfection is achieved not when there is nothing left to add, but when there is nothing left to take away.

- Antoine de Saint-Exupéry

I like this saying because it emphasizes that simple and effective approaches should be sought to design and build anything (eg. software producsts in my profession) elegant.

Written by Volkan TUNALI

September 17th, 2010 at 3:09 pm

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