The Digital Research Concurrent PC DOS Version 3.2 for IBM PC & PC/XT is a rare vintage software product that allows users to run multiple DOS programs simultaneously. This software is designed specifically for IBM PC and PC/XT computers, making it a sought-after item for collectors and enthusiasts of vintage computing technology. With its unique capabilities and association with IBM, this product offers a glimpse into the early days of personal computing and provides users with a rare opportunity to experience the past of technology first-hand.Serial # 1031-0000-003156 Great Condition! 1st Edition