Schematics.com is a new, free website that offers an on-line schematic entry tool. There’s not much new about that, except that designs on this new site are made freely available to the public.

Who would have thought that a circuit comprising only two 2-input NAND gates could be so complicated (or, should we say, “interesting”)? Up to this point (click here to see my earlier columns), the ...

The previous article examined the concept of logic gates. They can be made from discrete and active electronic components, although today logic gates are available within integrated circuits. In this ...