Definition: Open Source software has a very specific definition, but basically it must be distributed for free and other people must be allowed to modify or add to the software.
Open Source Software
By Christy Matte, About.com
Explore Family Computing
Must Reads
More from About.com
Work Hard, Travel Easy
The best tips for business travelers.Dog Care
Get tips on training and caring for dogs of all ages.48 Hours in Vegas
Plan a hot weekend in Sin City.Hotel Advice
The must-stay hotels worldwide.
©2008 About.com, a part of The New York Times Company.
All rights reserved.