Transistor Circuitry for Digital Computers
C. L. Wanlass · IRE Transactions on Electronic Computers · 1955
Transistor circuitry is presented that enables the construction of a digital computer which will operate at a clock frequency of 200 kc or less. The circuitry employs readily available germanium or silicon junction transistors of the type used in audio-frequency circuit work. A new system of diode gating is also presented as a necessary part of the circuit philosophy. No vacuum tubes are required or used within the computer.