Title: | Pre-Production Non-Functional |
Date: | c. 1983 |
Material: | Iron oxide on polyester substrate, plastic housing |
Dimensions: | Disk: 4 in. (101 mm) |
Company: | IBM Corp. |
Location: | Armonk, New York, United States |
Short-lived 4 in. floppy disk format that made no headway against the standard 3.5 in. diskette. This example is a non-working prototype.
