Identify the correct sequence of the following technologies used in the first generation to the fourth generation of computers. Choose the correct answer from the options given below.

The first generation used vacuum tubes, so item four comes first.

The second generation used transistors, so item three comes next.

The third generation used integrated circuits, so item one follows.

The fourth generation used microprocessors, so item two comes last.

Each generation made computers smaller, faster and more reliable.

The microprocessor placed an entire processor on a single chip.