Which technology is characteristic of second-generation computing?

Microprocessors emerged in the third generation of computing, not the second. They represent an advancement where multiple transistors are integrated onto a single chip, enabling more complex and powerful computing capabilities. Thus, while essential to later developments, microprocessors are not a characteristic of second-generation computing.

Nanotechnology pertains to the manipulation of matter on an atomic or molecular scale, which is a concept that gained traction much later than the second generation of computing. This technology is not directly related to the fundamental components or characteristics of second-generation computers, which primarily utilized transistors rather than nanoscale innovations.

Artificial intelligence (AI) is a field of study that aims to create machines capable of intelligent behavior, but it is not a defining characteristic of second-generation computing. AI began to gain prominence in later generations, particularly with the advent of more sophisticated algorithms and hardware capabilities that exceeded the limitations of second-generation technology.