ARTICLE SYNOPSIS ...Hardcard offspring by Howard Falk About a year and a half ago the Hardcard appeared on the personal computer marketplace and quickly became a very popular item. Hardcard is a 10 million byte hard disk that plugs into one of the expansion slots (normally used to hold adapters for printers and displays) at the back of the IBM Personal Computer. This product sold so well that it stimulated development of many similar disks-on-a-card. In fact, there are now so many different card-mounted units available that they constitute a new category of hard disks for personal computers. From the start, the...