Ключевые слова: abstract, analog, art, background, beloved, business, button, calculating, calculator, click, clicks, complete, concept, count, countdown, counter, digits, display, emotion, equipment, event, expression, figures, hand, hand held tally, instrument, isolate, isolated, life, machine, manual, mathematical, measurement, metal, monochrome, number, object, push, single, special, sport, still, symbol, tally, technology, time, vacation, white,