Depends on the version, but ALL the Turbo C/C++ stuff is way old. I loved Turbo C, and just quit using it this last year (ver. 1.01). There are a LOT of nice features in Pelles C, and you REALLY owe it to yourself to move into the current century IDE and compiler.
The 1.01 of C/C++ you should know that the C++ part of it has almost all been replaced by the current C++ standard. Different headers, you name it. For C, the compiler isn't bad at all, but the newer features (like using the include file windows.h, using Windows API, modern graphics, having BIG arrays, and BIG integers), just aren't there.