My own experience in Turbo Pascal started with (I think) version 4 when I got an 80286 machine in 1987. In that time frame Borland was coming out with a new version every year that radically improved the language, it got OO functionality in 5.5, inline assembly in 6, etc. I remember replacing many of the stdlib functions such as move and copy w/ ones that were twice as fast because the used 16 bit instructions that were faster on the 80286. With the IDE and interactive debugger it was one my favorite programming environments ever.
Having been a Borland's compilers fanboy since Turbo BASIC, all the C++ and TP versions for MS-DOS, a few ones on Windows 3.x, Borland C++ 4.5, and first editions of Delphi and C++ Builder, until their management messed up, it kind of sadens me the zig-zag turns we have had since the 2000 with VMs and interpreted languages, until we finally got the renaissance of AOT toolchains.
If only Native AOT was as easy to produce a binary as a plain Turbo Pascal 6 project using Turbo Vision.
TurboPascal was released at the tail end of 1983 targeting CP/M and the Z80. It was hugely popular on the platform.