The 4070: Quad XOR. Which brings us to our logic chip du jour. The 4070 is another 14-pin wonder, just like the 40106 and the 4069UB and the power and ground pins are in the same places.

The optoelectronic logic element, Figure 1, contains three input control switches of optoelectronic pairs U1.1, U2.1 …U6.1 (optronic pairs are highlighted in color for clarity), made on transistors Q1 ...

A Photonic SRAM with Embedded XOR Logic for Ultra-Fast In-Memory Computing” was published by researchers at University of Wisconsin–Madison and USC. Abstract “Traditional von Neumann architectures ...

The realization of a universal electromechanical logic gate in a single device with AND, OR and XOR functions can enable the construction of any other logic gate. Logic circuits ...

Almost any complex calculation can be parsed into a series of smaller steps through logic gates. In the case of an XOR gate, ... two different entering digits return a 1 (see diagram).