David M Williams

David M Williams

David has been computing since 1984 where he instantly gravitated to the family Commodore 64. He completed a Bachelor of Computer Science degree from 1990 to 1992, commencing full-time employment as a systems analyst at the end of that year. David subsequently worked as a UNIX Systems Manager, Asia-Pacific technical specialist for an international software company, Business Analyst, IT Manager, and other roles. David has been the Chief Information Officer for national public companies since 2007, delivering IT knowledge and business acumen, seeking to transform the industries within which he works. David is also involved in the user group community, the Australian Computer Society technical advisory boards, and education.

Thursday, 20 September 2007 20:15

What's in a free software license?

“Open source” is a hot buzzword today. It’s important to understand free software is still subject to a license just like conventional shrinkwrapped packages. The big difference is these licenses convey rights which can’t be revoked. Here’s what they mean for programmers and for end users.
In the past, I have been less than flattering over Microsoft’s OpenXML document format. Make no mistake, an open file format is definitely a must-have but is OpenXML the right one? Nevertheless, OpenXML exists so let’s be pragmatic about it: OpenXML can bridge the gap between Windows and Linux. In fact, it can open up whole new opportunities for Linux coders to produce documents in a Microsoft-friendly format.
Thursday, 13 September 2007 19:55

UID and GID: the basics of Linux user admin

Whether your Linux box has hundreds of users or just one account for you and one for your dog it is important to understand how Linux user accounts work. There are GUI tools for this within GNOME and KDE but here we lift the lid on the bonnet to show what really makes a user exist, and what these commands are doing to your filesystem.

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