while going through turbo c++ and borland c++ compilers, i came across a new term debugger.I don't know anything about it and not even much of a differences between these two compilers.Can u help me? m^@$poiu

I suppose you are talking about the legacy Borland compilers as today there are others, more used translators for modern operating systems. If so, Borland C++ was the professional full package, able to generate cross-platform code, i.e. you can compile under DOS to generate a load module for Windows (3.x). Turbo C++ was a bridged version aimed to educatinal environments lacking of cross-compliler capabilities. Debuggers are tools aimed to assist in the testing phase of application development; they usually offer tracing facilities, display of registers and variables, step by step execution and other stuff that is needed to monitor a program while it's running. After the compiler has detected the formal mistakes and they are removed, you enter the tesing phase to assure your code produces the wanted results and here the debugger may help.