Ключевые слова: background, bar, business, button, click, computer, concept, control, electric, electricity, electronic, end, enter, error, green, hardware, icon, illustrate, illustration, internet, key, keyboard, laptop, metal, notebook, office, open, pc, power, powerful, press, push, quit, red, round, run, service, sign, start, stop, support, switch, technical, technology, terminate, termination, up, web, www,