Posts by Rocksandwater

Larger space junk, maybe

They are using JJJ in Geraldton and Perth transmitting on 98.9 MHz and 99.3 MHz, with a wavelength about 3 meters.

They aren't going to detect space junk below 75 cm unless they have some new trickery.

Multics Relational Data Store was first on market

Funny you mentioned Multics in the article, but did not mention that Honeywell was first to commercial market with a relational database: Multics Relational Data Store (MRDS) in 1976.

In another strange twist, the Honeywell team built a hierarchical database as a layer on top of MRDS to meet market demands: MIDS.

First mover advantage? Not.

Still need generators; PUE tricks

Must be awfully power-dense batteries in those power supplies to run servers for several DAYS of power outage, which is what generators are usually good for. Batteries in power supplies allow you to avoid external UPSes, but you still need generators.

Essentially moving the UPS inside of the server allows you to improve PUE in a tricky way. The power loss through the UPS goes away. Similar power loss is hidden by maintaining charge on the batteries inside each server, if you measure PUE at the server power cord. Nice trick!