A universal passive logic element of positive and negative logic, made on just one transistor, is proposed. The logic element has at least two inputs, as well as three outputs: an OR, an XOR, and an ...

The optoelectronic logic element AND, OR and XOR is considered, the output signal of which can be inverted when the input control signal is applied, thereby converting the logic element into NAND, NOR ...

This post was done in partnership with The Wirecutter, a buyer's guide to the best technology. Read the full article here. If you're looking for an easy-to-use universal remote to control up to eight ...

— -- Nowadays, there's a good chance that your TV has a lot more hooked up to it than just a cable box or antenna (remember those?), especially if you're putting together a home theater. In fact, ...

Universal remotes are extremely convenient if they work correctly. But setting them up can be quite a hassle: often, you need to browse through long lists of TV models, key in the codes on the remote ...