Ключевые слова: accident, alert, beware, businessman, careful, caution, computer, computing, concept, cyberspace, dangerous, employee, error, exclamation, fail, hazard, information, internet, laptop, maintenance, mistake, network, notice, online, problem, process, program, repair, risk, safety, screen, security, service, sign, software, stop, support, symbol, system, technical, technology, triangle, trouble, update, virus, warn, warning, web, website,