The invention of computer makes which occupations rise and which occupations decline.

With the invention of the steam engine, emerging occupations include factory workers and steam engine technicians. Because steam has replaced traditional power, the use of animal power such as donkeys and horses has decreased, and traditional farmers have decreased.

With the invention of generators, the rising professions are power engineers, electricians and electrical appliance merchants, while the sales of traditional lighting such as kerosene lamps began to decline, and the related merchants decreased, while the use of animal power such as donkeys and horses decreased again, and the traditional farmers decreased.

With the invention of television, the emerging professions are TV screenwriter, program host, TV advertisement producer and TV actor, while the traditional drama and other industries have been hit, with fewer actors and fewer radio practitioners.

The invention of electronic computer made programmers, typists and other professions rise, while traditional word processing professions such as copywriting declined.

The invention of the automobile: the occupations directly brought are drivers, automobile maintenance workers and cleaners, while the groom and carriage manufacturers are facing losses.