Programming History

Bill Gates Releases Early Microsoft Source Code: A Digital Artifact or Publicity Stunt?

In celebration of Microsoft’s 50th anniversary, Bill Gates has released the original Altair BASIC source code, a 157-page PDF of scanned documents from 1975. Inspired by Popular Electronics’ Altair 8800 feature, Gates and Paul Allen, lacking the necessary hardware, created a BASIC interpreter using a PDP-10 mainframe, simulating the Altair’s Intel 8080 chip. This foundational code, built over two months with Monte Davidoff, represents Microsoft’s origins before its iconic products and is available for viewing, though not readily usable by modern tools. The release offers a historical glimpse into the company’s humble beginnings.

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