To regain operation of a Minuteman Missile guidance computer, a ferromagnetic film was sprayed onto a previously inoperable memory disk after the original coating was removed using paint remover. The coating was then polished down to provide a smooth and uniform film, 1'he permanent data required for the clock and sector channels was determined from an operable Minuteman computer. 1-his information was then recorded on the memory disk using the write heads which were part of the complete memory unit. Digital electronics using integrated circuits provided theand generated the recording data _or the memory write heads. A "memory check" program verified the uniformity of the repaired memory by alternately writing "0' s" and "1' s" on each bit location and then reading and comparing the numbers to "0's" and "l's".Ball State UniversityMuncie, IN 47306
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/180951 |
| Date | 03 June 2011 |
| Creators | Turner, James A. |
| Contributors | Errington, Paul R. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | iv, 39 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
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