Jim Hall

5850 points

Minnesota

Jim Hall is an open source software advocate and developer, best known for usability testing in GNOME and as the founder + project coordinator of FreeDOS. At work, Jim is CEO of Hallmentum, an IT executive consulting company that provides hands-on IT Leadership training, workshops, and coaching.

Open Sourcerer People's Choice Award People's Choice Award 2018 Author Linux Contributor Club

Authored Content

Free education resources from Curriki and Sankoré wikis

Calculate pi by counting pixels

Happy Pi Day! Does counting pixels get you the circumference of a circle?

4 open source technologies to make writing easier

If you are getting started in technical writing, you might be interested in this list of open technologies that make technical writing easier.

How to add margin notes to a LibreOffice document

With margin notes, you can provide notes for your reader, such as extra context, errata, or pointers to other material.

Count magical bunnies with LibreOffice Calc

Follow along with this LibreOffice Calc tutorial to perform the Fibonacci Sequence calculation.

Learn to code with my retro computer program

I wrote an educational retro computer called the Toy CPU so that my students could learn about machine language.

6 articles to get you excited about programming

Whether you're just learning, returning from some time away, or a long-time expert, it's time to write some code.

Contributed Content

Our favorite Linux replacements for antiquated open source tools

We asked our community of contributors what open source tools they are using in place of those that feel outdated or antiquated.

Introduction to the Domain Name System (DNS)

Global communication in open source projects

An interview with FreeDOS Project founder Jim Hall on communicating effectively around the world.

Puzzle pieces coming together to form a computer screen

How a college student founded a free and open source operating system

An interview with FreeDOS founder Jim Hall.

Gift ideas for Sysadmin Appreciation Day

What was the best gift you received as a sysadmin? Take our poll and check out some gift ideas for Sysadmin Appreciation Day.

How did you get started with Linux?

Celebrating Penguin Awareness Day with stories about the moment we learned about Linux.

Authored Cheat Sheets and Downloads

C programming cheat sheet

By Jim Hall

C is a straightforward compiled programming language. Other programming languages borrow concepts from C, which makes C a great starting point if you want to learn programming…

Cheat sheet: awk

By Jim Hall

If you need to extract data from files, or simply display data in a new way, you need a script. AWK is a scripting language that does exactly that in a straightforward way. It…

Cheat sheet: Groff Macros

By Jim Hall

Like other text formatting systems, groff is built around macros. This flexibility means you can use the macro set best meets your needs to write your documents. A groff input…

Authored Comments

Jim Hall

2 Feb 2023

Learn Basic by coding a game

Excellent article! I'll add that for anyone who wants to try this on FreeDOS, the Bywater BASIC package is included in the FreeDOS 1.3 Bonus installation CD.

Jim Hall

19 Dec 2022

How I use my old camera as a webcam with Linux

I already have a webcam, but I loved this article so much that I think I'll try to set up my old digital camera as a webcam, just to do it. Thanks for the great article!