Personal computer. An electronic computer that is marketed for use in the home, notwithstanding business applications. Such computers are considered Class B digital devices. Computers which use a standard TV receiver as a display device or meet all of the following conditions are considered examples of personal computers:
(1) Marketed through a retail outlet or direct mail order catalog.
(2) Notices of sale or advertisements are distributed or directed to the general public or hobbyist users rather than restricted to commercial users.
(3) Operates on a battery or 120 volt electrical supply.