Complex sentence: EDVAC was delivered to the Ballistics Research Laboratory in August 1949 and after a number of problems had been discovered and solved, the computer began operation in 1951 although only on a limited basis.
Split into simpler sentences: EDVAC was delivered to the Ballistics Research Laboratory in August 1949 and after a number of problems had been discovered and solved. The computer began operation in 1951 although only on a limited basis.