A home computer is by far the most complex item that an average consumer is likely to own. Unfortunately, many of the possible uses of the standard home computer require a level of technical understanding that the average user does not have. Also a computer requires a level of routine maintenance that is more than many people can or will deal with. Security problems abound and require a vigilance that many do not exercise. Also, the economic interests of the computer industry often do not coincide with the best interests of the consumer.