Run KitKat on your PC

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One of the problems with running newer operating systems on older PCs is they just tend to struggle under the weight. Sure, they’re designed to run in the same amount of RAM as their predecessors (at least in the case of Windows), but that doesn’t always help much.
One of the quieter and more interesting OS efforts in recent times has been the Android-x86 project. You might be having trouble getting a KitKat/Android 4.4 update for your phone or tablet, but… Read more

My new Arduino project – Big-Screen Sports Timekeeper

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A few months ago, I turned one of the Dot-Matrix Display (DMD) boards from Australian makers Freetronics into an Audio Spectrum Analyser in my APC magazine Arduino Masterclass*, but in the new October 2014 issue of APC, I’ve used it for something more traditional – a big-screen sports timekeeper.
Most local sporting clubs end up relying on a guy with a stopwatch and a whistle, but this 32×16-LED panel can be combined with a simple Arduino Uno microcontroller to create… Read more

USB charging secrets

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Everyone wants their mobile device to charge faster – but some of the things you’ll read (and sometimes even buy) do more to slow down charge speeds than anything else. There’s quite a bit of guff about the place when it comes to mobile device charging – and the best way to get informed is to understand just how USB charging works.
My story on USB Charging Secrets over at apcmag.com looks at the USB charging standards and helps you… Read more

Five zero-cost ways to boost MySQL performance

fiveways

The internet runs on databases – without them, the way we live today just wouldn’t be possible. So, it’s not surprising there’s significant demand for greater database transaction speed to cope.
You can get that speed by throwing faster hardware at your database – but that should come only after significant database performance management. It seems everyone has their own idea of how to maximise database transaction speed, but the only way to find that out quantitatively is to benchmark… Read more

How to use my APC Arduino project code

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Over the last little while, I’ve had a few readers looking for help on how to get started with Arduino projects and my APC Arduino Masterclass series in particular.
The first thing you’ll need is the Arduino integrated development environment or IDE – this is where you write your code or load my .ino source code (called ‘sketches’ in Arduino-speak) and program your Arduino Uno board. Grab this from http://arduino.googlecode.com/files/arduino-1.0.5-r2-windows.exe (Windows users, Mac OS X and Linux users can grab the… Read more

Linuxs distros and RDBMS Labs test for ITNews

itnews

After some long hours, I’ve just completed my first labs test story for Australian business tech news website itnews, looking at Linux distros and relational database management systems (RDBMSs) – MySQL and MariaDB, in particular.
All the major Linux server distros feature at least one DBMS, but working out which is the best combination would obviously take some serious time testing (hint: it does!), so I’ve taken the three most popular distros – CentOS 7.0, Debian 7.6.0 and Ubuntu Server… Read more