Ключевые слова: alertness, alphabet, assistance, business, button, character, colour, communication, computer equipment, computer key, computer keyboard, danger, data, equipment, global communications, information technology, input device, it, it support, keypad, letter, nobody, number, office, panic button, panicky, part of, pc, photography, problems, red, single object, technology, telephonist, terrified, text, typeset, urgency, warning symbol,