The fun part about logic gates is that there are so many ways to make them, with each approach having its own advantages and disadvantages. Although these days transistor-transistor logic (TTL) is … ...

Figure 1 The XOR logic element and its analog using discrete elements.. The second variant of the 2XOR element is shown in Figure 2.Transistors Q1 and Q2, as well as resistor R2, serve as the 2AND ...

Physicists at the University of California, Riverside have received a $2 million research grant to work on "magnetologic gates," a brand new computing building block made from graphene and ...

Nanotechnology continues its rapid evolution as two more research groups report on the assembly of individual molecules and molecular scale structures into functional logic circuits. Researchers from ...

This allows current to flow between source and drain, making the device a NEMS field-effect transistor. Mehregany and colleagues were then able to make a NOT logic gate by combining two such switches.

Current silicon gates are pure logic -- on or off, billions of times per second. In magnetologic gates, there are two magnetic electrodes that magnetically store data -- like a hard drive ...