Low Power

In the same week, I bought two computers from the same company. One was a Lenovo laptop — a nice everyday machine I picked up at Costco. The other was a Lenovo tablet, bought to be a small home server. They had the same 128 GB of storage. And the tablet cost less than a third of what the laptop did. That gap made me stop and think. Not because the laptop was a bad deal — it wasn’t. But it showed me something I’d never really thought about. For the job of being a server, most of what you pay for in a “real” computer just sits there unused. ...

Here’s a question that sounds odd at first. Could the cheapest, smallest, quietest computer in your house be your home server? Not a Raspberry Pi. Not a NAS. Not an old laptop on a shelf, fan going, getting warm. I mean an ordinary Android tablet — the kind you’d hand a three-year-old to watch cartoons. It turns out it can, and I’ve been running one this way for a while. A $100 tablet sits in my home right now, plugged into the wall. It runs a real Linux server that serves audio to a web app, over its own secure web address. It’s silent, about the size of a paperback, and it uses very little power. I’m as comfortable leaving it on as I am leaving my phone on. ...