Explanation: When you "comment out" something (usually previously-executable instructions) in the computer source code, this effectively inactivates it and makes it into a comment - which is ignored by the compiler/translator/runtime environment.
For example, if your computer program has an instruction to display "Hello world" to the screen, the user will see these words displayed. If you comment out the line in the source code that contains the instruction to display "Hello world", the instruction has been inactivated and will not be displayed on the screen.
-------------------------------------------------- Note added at 3 hrs (2007-03-28 19:00:11 GMT) --------------------------------------------------