| 708 / | HD | ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING | 
| 100 | DF | ELECTRICAL DIGITAL CALCULATING COMPUTER {10} | 
| 200 | DF | .~ Particular function performed {26} | 
| 490 | DF | .~.~ Arithmetical operation {27} | 
| 495 | DF | .~.~.~ Floating point {16} | 
| 496 | DF | .~.~.~.~ Compensation for finite word length {3} | 
| 499 |  | .~.~.~.~.~ Sticky bit |