Definition: MSDN

(MicroSoft Developer Network) A Microsoft service for software developers. Launched in 1992 as a quarterly CD-ROM subscription, MSDN included technical documentation, news, patches and fixes for existing products and beta copies of upcoming releases. In 2020, MSDN became part of Microsoft Docs and then Microsoft Learn in 2022.

MSDN Magazine
A 2000 merger of Microsoft Systems Journal (MSJ) and Microsoft Internet Developer (MIND) magazines became the monthly MSDN Magazine. See Microsoft Learn.