Correct option is B
Integrated circuits (ICs) significantly reduced the physical size of computers by integrating multiple electronic components onto a single chip, replacing the bulkier vacuum tubes used in earlier computers. This invention was key to the miniaturization of computers.
Information Booster:
1.
Integrated circuits combine multiple transistors, resistors, and capacitors into a small, compact form, leading to faster, smaller, and more reliable computers.
2.
Vacuum tubes, used in the first-generation computers, were much larger and consumed more power.
Additional Knowledge:
·
Solid state memory and
registers are essential for modern computing, but they did not contribute as much as ICs to reducing the size of computers.