Which of the following electronic technologies is the key technology for…

Personal Computers (PCs) emerged in the 1970s during the fourth generation of computers. This era is characterized by the development and use of microprocessors, which integrated thousands of transistors onto a single chip. This technology allowed for the creation of compact, affordable computers like the Altair 8800 and Apple I, distinguishing them from earlier generations that relied on vacuum tubes, discrete transistors, or large-scale integrated circuits.