IC Multiplexers

I added a new page to cover IC Multiplexers, and a few multiplexer graphics. I also started with a definition of multiplexers and added many of the common part numbers for integrated circuit multiplexers. I'll be adding more part numbers over the next few days. The new page is added off the Multiplexer Dictionary page.

At the same time a few other graphics were added to the site.

On a side issue, I noted that a few of my key words are seeing a decline over the last year;
Can Bus. also Canbus, and USB Interface.