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Should the datacenter be in the middle?

The other day, I landed on this article: In Focus: Subsea Network Architecture: IXPs. The article takes some time to arrive at the point that undersea internet exchanges would be a good idea. The most eyecatching part is a variation on this image:

But should the datacenter and/or internet exhange in the middle between multiple users?

Full article / permalink - posted 2023-09-07

Looking at SQLite Unicode behavior

In this post, I want to have a look at how SQLite interacts with Unicode. (Also see my post The (dark) magic of Unicode.) As explained here, SQLite doesn't have full Unicode support unless that support is explicitly included when SQLite is compiled.

So what does this mean in practice?

Full article / permalink - posted 2023-09-05

SQLite: add a powerful database engine to any app

When I was 24, I decided to give up my job and go to college and study computer science. If I'd have known how many database classes that involved, maybe I would have reconsidered.

Back then, we had a big server that ran a RDBMS (relational database management system) that hundreds of students all used together. These systems were big, complex and expensive. (Oracle made its fortune selling RDBMSes.) MySQL and PostgresQL are somewhat more streamlined free and open source RDBMSes. Much better, but firewalling, user authentication and backups are still somewhat of a headache. But hey, if you need a database, you need a database.

Enter SQLite.

Full article / permalink - posted 2023-09-04

Skyline #20, regenboog-editie

Image link - posted 2023-08-27 in

SDBox: a cheap SD card adapter for your Amiga

I was watching the videos on the BBC Master computer on the Adrian's Digital Basement Youtube channel. Adrian has cleaned up this old Acorn BBC Master, restored the keyboard to full functionality and then started to "Americanize" it by changing the power supply to use 120 V, and making the composite video NTSC rather PAL.

But what really peaked my interest is that he made a tiny little interface to hook up SD cards to the Master's user port. I think it only uses four wires. There's a very small circuit board, but that only has some resistors to adapt the user port's 5 V to the 3.3 V used by SD cards. Apparently, that's all the hardware you need for reading (and writing?) SD cards. Wow.

Could this also work on an Amiga?

Full article / permalink - posted 2023-08-21

Dynamische stroomtarieven

Aanstaande maandag is het dan zover: mijn driejarige energiecontract loopt af. Dat gaf me drie opties:

De prijzen voor vaste en variabele contracten ontlopen elkaar niet zo veel, met rond de 40 cent per kilowattuur voor het normale tarief en zo'n 36 cent/kWh 's nachts en in het weekeinde...

Volledig artikel / permalink - geplaatst 2023-07-29

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