Swallow!
1943
Yes, called the EINAC
John Presper Eckert was a coinventor of eniac computer in the 1940's
J. Presper Eckert and John W Mauchly
John Presper Eckert & John W. Mauchly
Dr. John Mauchly and Dr. Presper Eckert Mauchly imagined it and Eckert worked out everything else
machine developed by Dr.john mauchly and j. presper eckert
Dr. John Mauchly and Dr. Presper Eckert da ka sayun oiue
I'm not sure any records of initial power up still exist. Were you asking about ENIAC, BINAC, or UNIVAC I?
ENIAC was built in the Moore School of Electrical Engineering of the University of Penn. Designed and built under the supervision of John Mauchly and J. Presper Eckert
John Mauchly and John Presper Eckert invented the EDVAC
They created the ENIAC (Electrical Numerical Integrator And Calulator). When the ENIAC was first turned on the city of PA to experience blowouts.