e source code and modify it freely. Opp.: proprietary. [Computer and Information Sciences]  
n., A computer program in which the source code is available to the general public for use and/or modification from its
original design free of charge (open). Opp: proprietary. [Computer and Information Sciences] 
recorded, usually retained in archives for their evidential, legal, informational, or historical value, in accordance with instructions
n., Freely available structures, procedures, or tools for the uniform