11.  Never mind the oodles of built-in software or the memory that leaves other computers in the dust.

12.  On the Internet, however, a card number follows a prescribed path and is turned into a code from the moment it leaves your computer, he added.

13.  On the chicken side, leaving the computer on means the hard drive motor is always spinning, counting down the seconds until it finally fails.

14.  One obvious drawback is that most tourists leave their computers at home when they travel.

15.  Phone companies have balked, fearing the offering would encourage users to leave their computers hooked up all the time, tying up phone circuits.

16.  Searching for gold on the Yukon Trail is not the worst way to pass a Sunday afternoon, especially when you do not even have to leave the computer.

17.  She was preparing a report on her work on Angelman syndrome, a condition that causes retardation, and had left her computer on when she went to bed.

18.  That way, you can leave the computer on all the time and let it field your calls and incoming faxes.

19.  That leaves the computers.

20.  The manual is clear and well written, and provides some tips for parents that help put the software to use after the child has left the computer.