COMPUTER FUNDAMENTALS

Detailed explanation-1: -Transistors made of semiconductors replaced tubes in the construction of computers. By replacing bulky and unreliable vacuum tubes with transistors, computers could now perform the same functions, using less power and space.

Detailed explanation-2: -The first generation of computers depended upon the invention of vacuum tubes; for the second generation it was transistors; for the third, it was the integrated circuit; and the fourth generation of computers came about after the invention of the microprocessor.

Detailed explanation-3: -During the 1950s, semiconductor devices gradually replaced vacuum tubes in digital computers. By 1960 new designs were fully transistorized.