Which invention replaced vacuum tubes in computers?

A) Integrated circuits
B) Magnetic tape
C) Micro controllers
D) Transistors

Vacuum Tubes

Electronic devices that control the flow of electrons through a vacuum, used in early radios, televisions, and computers before the advent of semiconductor devices.

Integrated Circuits

Integrated circuits are microchips that consist of a set of electronic circuits on a small flat piece (or "chip") of semiconductor material, typically silicon, functioning as the core component in a variety of electronic devices.

Transistors

Semiconductor devices used to amplify or switch electronic signals and electrical power, fundamental components of modern electronic devices.