Data Display Debugger (GNU DDD) is a graphical user interface (using the Motif toolkit) for command-line debuggers such as GDB, DBX, JDB, HP Wildebeest Debugger, XDB, the Perl debugger, the Bash debugger, the Python debugger, and the GNU Make debugger. DDD is part of the GNU Project and distributed as free software under the GNU General Public License.
Dual (the pacemaker, paces both the atrium and the ventricle) Dual (the pacemaker,senses both the atrium and the ventricle) Dual inhibited (what it does)
