A key advantage of using this laser surgery is the cauterization produced around the excision. This leads to a bloodless surgery, something which caused great pain and fear in the past. Finally, the third, and most common, robot developed after the Second World War was the computer. This machine could also perform certain tasks upon request. The problem of losing information and organizing daily schedules were somewhat alleviated by computers.
Industries use robots to perform dangerous, fatiguing, and boring tasks.
Computers have many uses in an industrial society. Doctors use computers to monitor body temperature. This allows the doctor to leave one patient so he can tend to other patients. Lasers here solve the problem of trying to find one doctor for each patient ever admitted. Computers are also used in helping air traffic controllers track airplanes over major airports, keeping reservations for hotels and theaters, and keeping mathematical and statistical analysis for scientists in laboratories.