Final answer:
Radar was a key WWII invention that later found civilian use, alongside digital computing advancements like the ENIAC. Post-war, these technologies led to the development of various consumer electronics and household appliances.
Step-by-step explanation:
Radar was a WWII invention which was put to civilian use in recording after the war. Other important wartime technological advances included the development of early digital computing devices, such as the work by Alan Turing and his team to break the Nazi Enigma code, leading to the first rudimentary computers. Also, the introduction of the ENIAC (Electronic Numerical Integrator and Computer), developed initially for the U.S Army to calculate artillery firing trajectories, transitioned into peacetime applications. Innovations like microchip technology facilitated the creation of consumer electronics, including portable devices for personal entertainment, and revolutionized leisure activities, paving the way for products like handheld calculators, VCRs, video arcades, and microwave ovens.