Question 53

Microprocessors have been the defining technology of computing from 1971 to the present.

Microprocessors became the cornerstone of computing technology starting in 1971 and continue to play a crucial role in modern computing systems today.

A) 1946–1959

This time period predates the invention of microprocessors, during which early computers were primarily based on vacuum tubes and transistors, not microprocessors. Therefore, this option is incorrect.

B) 1959–1965

While this period saw advancements in transistor technology and the development of integrated circuits, microprocessors had not yet been invented. This option does not accurately represent the era defined by microprocessors.

C) 1965–1971

This timeframe includes the development of early microprocessors, but they did not become the defining technology of computing until their introduction in 1971. Hence, this option is not correct.

D) 1971–present

This option correctly identifies the time period during which microprocessors have dominated computing technology, starting with the introduction of the first commercial microprocessor, the Intel 4004, in 1971, and continuing to the present day.

Conclusion

Option D is definitively correct as it accurately captures the era when microprocessors have been central to computing technology. All other options fail to recognize the significance of microprocessors and their impact on the evolution of computing since 1971.