Celebrating 30 years of FreeDOS
FreeDOS is a great example of the open source model: developers working together to create new programs
How many usability testers do you need?
It doesn’t take many testers to get results that are “good enough” to improve your design.
Screencasts for usability testing
With screencasts, you can extend your usability testing.
Usability testing in open source software
Through usability testing, we can make open source software projects easier for everyone to use.
Tips on writing open source documentation
Adjust your style when writing documentation to reach a wider audience.
Open source in organizations
Open source is a power multiplier for today’s IT organizations.
Play a fun math game with Linux commands
Use these commands to generate random numbers for a fun math quiz game.
5 common C programming bugs (and how to avoid them)
Add a little extra code to your next program to avoid these common C programming mistakes.
How to run DOS apps on Linux
With QEMU and FreeDOS, you can run your favorite DOS applications and games.
Running FreeDOS on Linux
Here’s how I boot FreeDOS on my Linux desktop machine using QEMU.
Why DOS only has 16 colors
Have you ever wondered why DOS text only comes in 16 colors and 8 background colors?
Running FreeDOS on legacy hardware
How I installed FreeDOS on a 386-SX micro laptop called the Pocket386.
Using ‘awk’ to filter text
Here’s how to use awk to strip out sample code from a Markdown file.
Digging into ODT file contents
All LibreOffice files are zip file containers with XML data and metadata.
Use ‘grep’ to solve a 2-dimensional word puzzle
Regular expressions match patterns and help you solve problems.
Comparing BASIC with FORTRAN 77
I applied what I learned about BASIC to learn the FORTRAN 77 programming language.