| 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} |
| 670 | DF | .~.~.~ Addition/subtraction {11} |
| 700 | | .~.~.~.~ Binary {6} |
| 701 | DF | .~.~.~.~.~> Bipolar junction transistor only or combined with Field-Effect Transistor |
| 702 | DF | .~.~.~.~.~> Field-Effect transistor (FET) |
| 703 | DF | .~.~.~.~.~> Gate functional level |
| 704 | DF | .~.~.~.~.~> For precharging (e.g., Manchester, etc.) |
| 705 | DF | .~.~.~.~.~> Serial |
| 706 | DF | .~.~.~.~.~> Parallel {5} |