Which IDE / Code Editor was the first to introduce the code completion function?

I am trying to determine the point in time when code completion (autocomplete / intellisense / whatever) was first introduced in the IDE and any pointers would be appreciated.

Upon completion of the code here, I am referring to a function in the editor that offers methods or functions based on the code already entered, and I am interested in completing programming related to the language (not completing the style of the word processor).

I remember seeing this in Visual Studio and Microsoft Office in the early 90s, and I don’t remember when it was introduced, or whether it was really available in DOS-type IDEs such as Turbo Pascal or Turbo C + +. On suspicion, I would suggest that this was probably introduced in Smalltalk.

For those who are wondering, I need this information for a research document, and he could not find a reliable answer on the Internet.

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5 answers

The first IDE that comes to my mind is the Visual Basic IDE

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The Wikipedia article on IntelliSense contains a history section and indicates that the first use was in 1996.

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VB, Smalltalk, Emacs, Think Pascal, Sun Forte.

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, Turbo Pascal , , Windows.

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