Counter and timer boards are computer cards that perform digital counting and/or timing functions

Time delay relays and solid state timers use solid state electronic devices to provide a time delay

Single board computers (SBC) serve as the motherboard for instrumentation systems including modern PCs.

Specialty IC timing devices are specialty or proprietary products related to IC timing devices.

Data acquisition computer boards are self-contained printed circuit boards that typically plug into the backplane, motherboard, or otherwise interface directly with the computer bus

Crystals are naturally occurring materials that can be induced to resonate (vibrate) at an exact frequency.

Oscillators are devices that are used to generate repetitive signals.