We're back after a server migration that caused effbot.org to fall over a bit harder than expected. Expect some glitches.

The Tubes

In its simplest form a von Neumann computer has three parts: a central processing unit (or CPU), a store, and a connecting tube that can transmit a single word between the CPU and the store (and send an address to the store). I propose to call this tube the von Neumann bottleneck.” — John Backus, 1978