Blog

Which Browser is Fastest?

This is not an article about which browser if fastest, just an observation about some data that caught my eye. While looking at page load times in my Google Analytics account, I noticed a surprising browser ranking (based on data from 01-Jan-2012 to 08-Apr-2012): Internet Explorer, which has often been derided for being slow (as […]

Ubuntu

Ubuntu 11.10 – How to Lock Your Screen / Computer

These instructions are for Ubuntu 11.10 running the Unity interface. They may be the same for other version combinations, but no guarantee is made. Sometimes you have to leave your computer but don’t want to leave your session open for someone else to start using. One option is to log out, the other is to […]

Ubuntu

Ubuntu 11.10 – How to View / Display Hidden Files or Folders

These instructions are for Ubuntu 11.10 with the Unity interface and using Nautilus as the default file browser – this is the default Ubuntu 11.10 configuration. It may work for other version combinations, but no guarantee is made. The default settings in the Nautilus file browser prevent you from seeing certain files and folders. These […]

Ubuntu

Ubuntu 11.10 – How to Completely Uninstall / Remove the Kubuntu Desktop

These instructions are for Ubuntu 11.10 on which the Kubuntu Desktop was installed using either the Ubuntu Software Center or sudo apt-get on the command line. The instructions may be the same for other versions, but no guarantee is made. When the Kubuntu Desktop is installed in Ubuntu 11.10, it installs several additional packages and […]

Ubuntu

Ubuntu 11.10 – How to Completely Uninstall / Remove XFCE

These instructions are for Ubuntu 11.10 on which XFCE was installed using either the Ubuntu Software Center or sudo apt-get on the command line. The instructions may be the same for other versions, but no guarantee is made. When XFCE is installed in Ubuntu 11.10, it installs several additional packages and libraries. Not all these […]

Ubuntu

Ubuntu 11.10 – How to Completely Uninstall / Remove the Xubuntu Desktop

These instructions are for Ubuntu 11.10 on which the Xubuntu Desktop was installed using either the Ubuntu Software Center or sudo apt-get on the command line. The instructions may be the same for other versions, but no guarantee is made. When the Xubuntu Desktop is installed in Ubuntu 11.10, it installs several additional packages and […]

Ubuntu

Ubuntu 11.10 – How to Completely Uninstall / Remove the Lubuntu Desktop

These instructions are for Ubuntu 11.10 on which the Lubuntu Desktop was installed using either the Ubuntu Software Center or sudo apt-get on the command line. The instructions may be the same for other versions, but no guarantee is made. When the Lubuntu Desktop is installed in Ubuntu 11.10, it installs several additional packages and […]

Ubuntu

Ubuntu 11.10 – How to Completely Uninstall / Remove LXDE

These instructions are for Ubuntu 11.10 on which LXDE was installed using either the Ubuntu Software Center or sudo apt-get on the command line. The instructions may be the same for other versions, but no guarantee is made. When the LXDE interface is installed in Ubuntu 11.10, it installs several additional packages and libraries. Several […]

Mathematics

Understanding Averages – Mean, Median, and Mode

This tutorial examines the concept of the average as a single value representing a collection of values. It focusses on the mean, median, and mode. The average (especially in physics) can also mean the center or balance point, but, for most everyday use, we tend to think of the average as representative value. Average comes […]

Blog

Epson SX130 – a Review

After my laser printer died, I was in a scramble to buy a replacement printer so my daughter could get some homework printed out. It was 7 years since my last printer purchase, so I wasn’t up to date on printers and didn’t have time to thoroughly research the market. I have owned ink jet […]

C

Keyword – switch, case, default

The switch keyword is probably the least well understood of the C/C++ language keywords (although, const probably comes a close second). The keywords switch, case, and default always go together and cannot be used independently in any other context. There is a small difference in behaviour between C and C++. Most programmers will never notice […]

Blog

Windows 7 – How to Give Administrator Privilege to a Program

This tutorial is for Windows 7 with Service Pack 1. It may be the same for other Windows versions, but no guarantee is made. As a security measure, Windows 7 (by default) limits the types of changes that can be made on your computer. In general, this is a good thing because you don’t want […]