Ключевые слова: accessory, background, black, business, button, buttons, click, closeup, communication, computer, concept, connection, device, equipment, ergonomics, finger, gray, hand, hardware, human, input, instrument, internet, isolated, job, laptop, mouse, net, network, object, office, online, optical, pc, personal, plastic, play, pointing, push, scroll, single, surfe, surfing, technology, up, view, wheel, white, wireless, work,