Title
Disk recording density mementoCatalog Number
102741261Type
Physical objectDescription
The object consists of a disk and a paper envelope. The disk is printed to show the the relative amount disk real estate consumed by IBM storage producats during the period 1956 - 1991.Date
Circa 1991Manufacturer
IBM CorporationDimensions
overall: 1/8 in x 3 3/4 in x 3 3/4 inCategory
Ephemera/otherCredit
Gift of James N. PorterLot Number
X6504.2012
