IBM 1311 Disk Storage Drive

The IBM 1311 Disk Storage Drive was announced on October 11, 1962 and was designed for use with several medium-scale business and scientific computers. The 1311 was about the size and shape of a top-loading washing machine and stored 2 million characters on a removable IBM 1316 disk pack. Seven models of the 1311 were introduced during the 1960s. They were withdrawn during the early 1970s.