Fast forward-backward (write-read)

[Demian Brecht]

> This is a classic example of why the old external processing algorithms 
> of the 1960s and 70s will never be obsolete. No matter how much memory 
> you have, there will always be times when you want to process more data 
> than you can fit into memory.


But surely nobody will *ever* need more than 640k…

Right?

Demian Brecht
@demianbrecht
http://demianbrecht.github.com