Which of the following technology was introduced in the development of third generation of computers ?

The third generation of computers is defined by the use of integrated circuits, which packed many transistors onto a single chip.

Integrated circuits made these machines smaller, faster, cheaper and more reliable than before.

Transistors belong to the second generation, replacing the bulky components of the first.

Vacuum tubes were the switching technology of the first generation of computers.

MICR is a character recognition technology, not a defining feature of any computer generation.

The fourth generation later brought the microprocessor, integrating a whole CPU on one chip.