A message from my cameras!
Moderators: rjlittlefield, ChrisR, Chris S., Pau
A message from my cameras!
We are nothing without you!
Canon 5D and 30D | Canon IXUS 265HS | Cosina 100mm f3.5 macro | EF 75-300 f4.5-5.6 USM III | EF 50 f1.8 II | Slik 88 tripod | Apex Practicioner monocular microscope
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rjlittlefield
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- Joined: Tue Aug 01, 2006 8:34 am
- Location: Richland, Washington State, USA
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I use one of these things as a classroom prop in one of my math classes.
The card I use is an SD manufactured in 2007. It stores 1 GB in 1.6gm of material. This contrasts with a core memory module from a mainframe computer built in 1968. It stored 6 KB (yes, 6 thousand bytes) in 5 pounds of material.
In terms of memory density (bytes per gram), this represents improvement of a factor of roughly 250 million.
If you crunch through the math, that works out to be a doubling period of 16.8 months. When people speak of Moore's Law -- "doubling every 18 months" -- this is what they're talking about: 250 million times better, in 40 years.
This is an interesting period, isn't it?
--Rik
The card I use is an SD manufactured in 2007. It stores 1 GB in 1.6gm of material. This contrasts with a core memory module from a mainframe computer built in 1968. It stored 6 KB (yes, 6 thousand bytes) in 5 pounds of material.
In terms of memory density (bytes per gram), this represents improvement of a factor of roughly 250 million.
If you crunch through the math, that works out to be a doubling period of 16.8 months. When people speak of Moore's Law -- "doubling every 18 months" -- this is what they're talking about: 250 million times better, in 40 years.
This is an interesting period, isn't it?
--Rik