Several new types of business developed after World War II, often dependent on the new or improved technologies growing out of the war.
The first was space travel, partly developed in response to the `Sputnik' moment, in which space became the frontier of the Cold War with the Soviet Union.
Next, there were major developments in the jet engine, affecting plane travel.
Another major and radical technology developed within a decade after World War II was the computer, which has since transformed our world.
Microwave technology, originally investigated for military communications, helps in cooking.
Grumman Aircraft used left over production capability after the war to craft the first aluminium canoes.
Television was another major innovation.
Another very conspicuous type of business that developed right after World War II was the motel business. The word "motel" hardly existed before the war. Most travelers stayed in hotels inside towns and cities. The only motel-type businesses were typically called "auto courts" or "tourist cabins." But motels served an obvious need, and they sprang up rapidly all over the United States. Many were fairly simple places (like the Bates Motel in Alfred Hitchcock'sPsycho); others were deluxe places with swimming pools, cafes, cocktail lounges, meeting rooms, and other amenities. Automobile travel increased dramatically after World War II because the cars were better and the highways were better. People wanted the convenience of being able to park right outside their room and not have to fight city traffic. The excellent movieBonnie and Clydeshows what auto courts and tourist cabins were like before World War II. They were just little cabins. Such places have mostly disappeared by now. At first, motels were individually owned operations, but now there are corporations with hundreds of motels clear across the country.