A great product that is too expensive now..
My first paid-for application on a PC was written in Turbo Pascal running under MSDos 3.3. Back then we only needed 512Kb of memory and a couple of floppy disks to make a PC useful. TurboPascal compiled fast and produced single executables. I also used TurboC/C++ too. Borland was a real pioneer that is often overlooked in my view. Sadly, I still have the disks....
Later on I used Delphi to write Windows applications and it was a great product and reasonably priced. I stopped upgrading after 2009 as it's future was uncertain with each new owner and I was using Linux platforms more often.
I did look at upgrading in 2013 but Embarcadero has really stiffened up the prices. The cheapest option is now £1399 initial payment with £399 per year after that using the, now popular, subscription model.
Thankfully the open source Lazarus fulfils my needs at a much more sensible price!