Logic testers are simple but very helpful devices in testing digital circuits. A logic probe can be designed in many different ways. In this particular design, a combination of discrete and TTL logic ...

Light logic doesn’t use the conventional active devices you’d expect such as transistors, tubes, or even relays. Instead, it uses LEDs and CdS cells to make rudimentary switches.

There's a long wish list for a workable quantum computer: a viable system must be fast, compact and stable. The first integrated optical quantum logic circuits are a step in the right direction.

The researchers envision potential applications for their MOF crystals in components with integrated optical circuits, such as photonic diodes, on-chip signal processors, and optical logic gates.

In fact, there aren’t any logic chips in this circuit, either. As far as we can tell, the logic in this clock is made with resistors, diodes, caps, and neon tubes.

The researchers envision potential applications for their MOF crystals in components with integrated optical circuits, such as photonic diodes, on-chip signal processors, and optical logic gates.