| 360 / | HD | DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL |
| 88 | DF | RECORD TRANSPORT WITH HEAD STATIONARY DURING TRANSDUCING {4} |
| 97.01 | DF | .~ Disk record {6} |
| 99.08 | ![]() | .~.~ Rotational drive detail {2} |
| 99.09 | DF | .~.~.~> Movable drive |
| 99.11 | DF | .~.~.~> Stationary drive |