MEGABYTES to MOTHERBOARDS: A Friendly Guide to Computer Hardware A popular IBM-PC clone, called the Leading Edge Model D, is set up here with monitor, keyboard, and 20-Mbyte Hard drive. B Y P A U L B L E C H A R C Y Z As a contractor and small business owner, you may feel that it's time to take the plunge on your first computer, but don't know where to start. This article will help you take the first steps toward making a sensible hardware purchase. For starters, you'll need to familiarize yourself with a lot of new gadgets and a strange, new language (see glossary). If it seems a bit overwhelming at first, don't