Check the listing for details. AT&T UNIX System V Release 4 Version 2.1. Condition: Brand New. Listed at 12.00 USD. UNIX System V Release 4 Version 2.1 - Command Line Interface. Estate sale find. Contains the images of the original UNIX floppy disks. Includes base system images and additional packages. Installed and tested on VirtualBox 7. Includes detailed instructions for use with VirtualBox 7 in PDF and docx format. Some are on DVDs and some are on CDs. Disk types, brands, colors, and labeling may vary from what is shown but all are verified using VirtualBox 7. A portion of every sale goes to St. Jude Children's Research Hospital. Attention: All software, including operating systems, are sold as-is and are in no way guaranteed to work with your particular PC system configuration. NOTICE: PLEASE READ THE ENTIRE DESCRIPTION AND VIEW ALL THE PHOTOS AND/OR VIDEOS CAREFULLY BEFORE MAKING A DECISION TO BID OR PURCHASE. INFORMATION IN THIS DESCRIPTION SUPERCEDES ANY INFORMATION LISTED ELSEWHERE. ONLY ITEMS DEPICTED IN THE PHOTOS ARE INCLUDED UNLESS OTHERWISE NOTED. ITEMS MAY SHIP VIA A DIFFERENT METHOD THAN LISTED. IF YOU NEED FASTER DELIVERY, PLEASE LET US KNOW BEFORE BIDDING/PURCHASING. WE WILL MAKE EVERY REASONABLE EFFORT TO ACCOMMODATE. THANKS!