Most developers use only one debugger but it is quite handy to know about others. Likewise, you might want to consider a move from gdb to Eclipse or vice-versa depending upon the platform you ...

The third installs a version of the gdb debugging tool that works with target systems regardless of the processor architecture.

Running a debugger like gdb with real-mode 16-bit code on the x86 platform is not the easiest thing to do, but incredibly useful when it comes to analyzing BIOS firmware and DOS software.