OSS ? (denkfout)

Open source software is computer software whose source code is available under a license (or arrangement such as the public domain) that permits users to use, change, and improve the software, and to redistribute it in modified or unmodified form. It is often developed in a public, collaborative manner. (source)

"...Then there's 9892454959483. This one is the source code for Microsoft Word. In addition to being "copyrighted," this one is a trade secret. That means if you take this number from Microsoft and give it to anyone else you can be punished. ..." (source)

denkfout (de)n. logical error, error which causes a program to operate incorrectly instead of how it was intended to operate (Computers); fallacy, misconception, mistake (source)

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oo, i get confused now. please somebody tell me why, so i can see this world clearly.