Which of the Following Occurred in the 1946-1958 Generation of Computing

Multiple Choice

Which of the following occurred in the 1946-1958 generation of computing?

A) The interpersonal computing era ended and the internetworking era began.
B) The internetworking era ended.
C) The mainframe era began.
D) The mainframe era ended and the personal computer era began.
E) The personal computer era ended and the interpersonal computing era began.