Ключевые слова: alphabet, backgrounds, black, business, button, close, closeup, communication, communications, computer, concepts, control, data, desk, desktop, device, education, electrical, equipment, global, ideas, information medium, input, internet, key, keyboard, keypad, laptop, macro, modern, no people, object, office, oops, part, pc, push, selective focus, sign, single, symbol, table, technology, text, typing, up, word, working,