The trackers contained an electronic clock, calendar and light meter to pinpoint the birds' location.

This new electronic clock had no second hand judder and had a changed design, featuring two dashes at the quarter hours and single dashes elsewhere.

It appears on the huge electronic clocks counting down the minutes to that great occasion.

Computers, electronic clocks, and programmable logic controllers (used to control industrial processes) are constructed of digital circuits.

They are also used as backup power to keep the time in certain electronic clocks.