EM4 Digital Electronics Practice Test

ENIAC’s place in computer history is about how quickly a big machine moved from plan to working hardware during WWII. Construction started in 1943 and the hardware was completed in 1945. It then began running calculations that year, with a formal dedication to follow in 1946. Because of that timeline, the commonly cited completion year is 1945 (some sources emphasize 1946 as the point at which it was fully ready for regular use). The years listed in the question don’t match that completion point: they’re eitherbefore ENIAC existed or after it had already been completed. The upshot is that ENIAC was completed in the mid-1940s, with 1945 being the typical completion year and 1946 often noted for its readiness and dedication.