This paper provides an overview of key definitions related to ChatGPT, a public tool developed by OpenAI, and its underlying technology, GPT. The paper discusses the history and technology of GPT, including its generative pre-trained transformer model, its ability to perform a wide range of language-based tasks, and how ChatGPT utilizes this technology to function as a sophisticated chatbot. Additionally, the paper includes an interview with ChatGPT on its potential impact on academia and libraries. The interview discusses the benefits of ChatGPT such as improving search and discovery, reference and information services, cataloging and metadata generation, and content creation, as well as the ethical considerations that need to be taken into account, such as privacy and bias. The paper also explores the possibility of using ChatGPT for writing scholarly papers.