[prr]

$3 560 000 divided by 2, 12 times :-)

The effect of Moore's "law" is that processing power doubles approximately every 2 years, while the cost halves.

If 1 "unit" of processing currently costs $1; in 2 years time, 2 units will cost $1. Or that 1 unit costs 0.50.

[T-hawk]

Moore's law is that the density of discrete components (transistors, storage cells) increases. Cost and speed are knock-on effects. It just so happens that density does drive CPUs to be faster for the same production cost and storage to be either more capacious or physically smaller. But some aspects of computing performance don't benefit from density, like memory response time for example.