Japan's Casio Computer Co. is going back to basics--in emerging markets, at least. While the maker of G-shock watches has decided to jump into the still-infant smartwatch market in Japan and the U.S., ...

This file type includes high resolution graphics and schematics. You can build an analog calculator using a pulse-width modulator (PWM) to perform accurate four-quadrant multiplication and division.

This summer, battle lines were drawn over a simple math problem: 8 ÷ 2(2 + 2) = ? If you divide 8 by 2 first, you get 16, but if you multiply 2 by (2 + 2) first, you get 1. So, which answer is right?