Title
305-A RAMAC nameplateCatalog Number
102766479Type
Physical ObjectDescription
The object is a name plate/ patent plate for the IBM 305-A RAMAC process unit. Random Access Method of Accounting and Control [RAMAC] was the first magnetic disk storage device. The 305-A was the prototype version of which 14 units were built.The plate is black metal with white print. It is laminated in thick clear plastic.
Date
1955Manufacturer
International Business Machines (IBM)Place Manufactured
New York, N.Y., U.S.A.Identifying Numbers
| Model number | 305-A | Printed in white in the middle of the front of the card. |
| Other number | 2, 708,722 | Patent number |
Dimensions
overall: 1/8 in x 4 1/8 in x 2 3/4 inCategory
Ephemera/NameplateCredit
Gift of Bill YeeLot Number
X8358.2018