| 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} |
| 650 | ![]() | .~.~.~ Division {3} |
| 651 | DF | .~.~.~.~> Decimal |
| 652 | DF | .~.~.~.~> Coded decimal |
| 653 | DF | .~.~.~.~> Binary {2} |