* Processor Run Time:: Getting the run time used by Emacs.
* Time Calculations:: Adding, subtracting, comparing times, etc.
* Timers:: Setting a timer to call a function at a certain time.
-* Terminal Input:: Recording terminal input for debugging.
-* Terminal Output:: Recording terminal output for debugging.
+* Terminal Input:: Accessing and recordingo terminal input.
+* Terminal Output:: Controlling and recording terminal output.
* Sound Output:: Playing sounds on the computer's speaker.
* X11 Keysyms:: Operating on key symbols for X Windows
* Batch Mode:: Running Emacs without terminal interaction.