Part of the Business terms glossary:

1) In information technology, a product or system is described as open when its workings are exposed to the public and capable of being modified or improved by anyone. The alternative is a proprietary product or system. Also see open source.

2) In programming, to open (verb) a file or unit of data is to make it accessible for reading and writing. An open file is one that is ready to be read or written to.

This was last updated in April 2005
Posted by: Margaret Rouse

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