[Steely Tom]

The 1 RU pizza box will be considered a “dish washer” in the very near future.

Please explain the meaning of the expression "dish washer" in this context. It's a new one for me.

[Alas Babylon!]

Well, I can't speak for him, but when I started using rack mounted servers in the late 90s, they looked like this (and we thought they were tiny compared to the towers we had):

Then, over the years, we standardized to 1 U server, like this:

So, the older servers look, in comparison, like "dishwashers". An 8-core 64 bit ARM processor could conceivably let you have a powerful server the size of a paperback novel, like this:

[rarestia]

Any of the old 10+ RU servers from the late 90s qualify. Compaq Proliant servers are a great example.

ProLiant 3000:

Or the mack daddy ProLiant 5500:

These things were state of the art back in the day, but they're just gigantic power and cooling hogs now.