"Borland Turbo C++" is the flavor of C++ that Borland provides. There are many flavors of C++ out there, e.g. Microsoft's C++, mingw32 etc... The language is the same, the only thing that differs is the compiler/linker and hence the libraries used in each one. There is no "Borland C" and "Turbo C". Borland is the company, Turbo C++ is the C++ flavor they offer (now named C++ Builder, which is the IDE to that language plus Borland's other tools)
You can find all the available C++ Builder downloads at Borland here:
http://www.borland.com/downloads/download_cbuilder.html