What technological advancement was achieved with the creation of ELIZA in 1966?

The creation of ELIZA in 1966 marked a significant advancement in the field of artificial intelligence and computer programming, particularly in the realm of natural language processing. ELIZA was designed to simulate conversation in a way that mirrored therapeutic techniques pioneered by Carl Rogers, which focused on non-directive and client-centered communication. Through scripted dialogue, it could engage users in a manner that reflected therapeutic practices, allowing it to appear as if it was providing counseling. This innovation laid the groundwork for future developments in computer-mediated communication in mental health settings.

In contrast, other options do not accurately reflect the capabilities or purpose of ELIZA. For instance, real-time video consultations and online diagnostic tools represent developments that came much later with advances in technology and the internet. Similarly, automated appointment booking services are practical applications that evolved after ELIZA's inception. Thus, the focus of ELIZA was primarily on text-based interaction that resembled simulated therapeutic dialogue, aligning it closely with the techniques of Carl Rogers.