For all the confused devs under age 30 in here, this is IDE meaning Integrated Drive Electronics, what later became known as ATA and then retronymmed as PATA.
Since the context is MS-DOS, Turbo Basic, Turbo Pascal, Quick Basic, Quick Pascal, QBasic, Clipper, FoxPro among a few lesser ones.
Or given the Website name, Visual Age for Smalltalk, Visual Age for C++, Borland C++ for OS/2.
Although I am not sure about the history of the term Integrated Development Environment and its acronymisation, I don't think the early IDEs were called such --- the acronym IDE was basically exclusively used for the disk interface.
https://en.m.wikipedia.org/wiki/Xerox_Development_Environmen...
You just need to dive into the Xerox Development Environment papers and documentation for the Alto (1977).
EDIT: ;-)
I do miss me some ribbon cables