A mid-range computer, is a class of computers that were developed in the mid 1960’s, and were referred to as minicomputers when they first came out. They are now usually just referred to as mid-range computers, as they are in the middle range of computing systems, between mainframe and microcomputers. The biggest difference between midrange and mainframe computers are that mid-range servers function as stand-alone PC’s while mainframes are a network host. When they came out, mid-range computers were much smaller and less expensive than larger mainframes, as they could take up one or a few 19-inch rack cabinets, while a mainframe could fill an entire room. These computers grew to eventually have pretty high processing power and capacity.