Speaking of the watch battery, this is used by the cell phone's internal clock chip.

Other devices might include temperature, fan or voltage sensors, lid switches and clock chips.

Indeed, the Compaq Computer Corporation warns that the popular SLT laptop contains a lithium battery "integral to the clock chip that is soldered to the system board."

If you want better accuracy, one good approach would be to wire a real-time clock chip up to your Stamp.

A real-time clock chip uses a quartz crystal to give it excellent accuracy.

Around 1971, the first calculator and clock chips began to show that very small computers might be possible.

This part is about as big as a quarter and contains the clock chip, crystal and a serial interface so that only one I/O pin is necessary to communicate with it.

CCD delay lines tend to be fussy about the clock signal timing, but using the matching clock chip should avoid any problems.

Turtle Beach was then acquired by Integrated Circuit Systems, a maker of clock chips for the PC market.

The fillip that Epson has added to its clock chip is a "wakeup" feature.