The Fifth Generation of computers is characterized by its reliance on Artificial Intelligence (AI), parallel processing, and supercomputers to create systems that can learn, reason, and make decisions in a human-like manner. While significant advancements in AI have been made, particularly in areas like machine learning and natural language processing, the full realization of truly intelligent, self-organizing, and adaptive fifth-generation computing systems is still an ongoing and active area of research and development worldwide. Earlier generations (First, Third, and Fourth) represent established periods in computer history with defined technological bases like vacuum tubes, integrated circuits, and microprocessors, respectively, and are not 'under development' in the same future-oriented sense.

Alan Turing is universally acknowledged as the 'father of theoretical computer science and artificial intelligence.' His seminal work in the 1930s introduced the concept of the Turing machine, a mathematical model of computation that formalized the ideas of algorithms and computability. This theoretical framework laid the groundwork for the development of programmable computers. Additionally, his contributions to the field of artificial intelligence, particularly his famous 'Turing Test,' provided a foundational challenge for evaluating machine intelligence. While Bill Gates, Steve Jobs, and Mark Zuckerberg are significant figures in the modern computing industry and technology, their contributions are primarily in software development, personal computing, and social media, respectively, rather than the foundational theoretical underpinnings of the field.

The '1977 Trinity' refers to three groundbreaking personal computers that were introduced in that year, marking the beginning of the home computer era. These machines were the Apple II, the Commodore PET (Personal Electronic Transactor), and the Tandy/Radio Shack TRS-80. While the Altair 8800 (1975) was an early and influential microcomputer kit, and the IBM PC (1981) and Xerox Alto (1973) were significant in their own right, only the TRS-80 was part of this specific trio of mass-produced, user-friendly computers launched to the public in 1977. The TRS-80, sold through Radio Shack, was particularly successful due to its accessibility and affordability, making personal computing a reality for many consumers.

Edgar F. Codd, while working at IBM, published his groundbreaking paper 'A Relational Model of Data for Large Shared Data Banks' in 1970. This paper introduced the concept of organizing data into simple tables (relations) with well-defined relationships, along with a theoretical framework based on set theory and predicate logic. This relational model offered significant advantages in data independence, flexibility, and query capabilities compared to previous hierarchical and network models, ultimately becoming the universally accepted standard for the design and implementation of modern database management systems (DBMS).

IBM made the crucial decision to use an open architecture for its PC, using components from outside suppliers. They chose the Intel 8088 microprocessor, a decision that helped establish Intel's dominance in the PC market for decades.

Vinton Cerf and Robert Kahn are known as the "Fathers of the Internet" for their pioneering work in the 1970s on designing the TCP/IP protocol suite, which defines how data is transmitted across networks.

Blaise Pascal invented the Pascaline in the 1640s to assist his father, a tax commissioner, with tedious arithmetic calculations. Its innovative design utilized a system of interconnected gears and dials. While revolutionary for its era, the Pascaline was fundamentally engineered for direct performance of addition and subtraction. More complex operations like multiplication and division could be performed through repeated additions or subtractions, respectively, but these were not direct functions of its mechanical design. Square roots and exponents were beyond its direct capabilities.

HTTPS (Hypertext Transfer Protocol Secure) is an extension of HTTP. It is used for secure communication over a computer network and is widely used on the Internet, especially for e-commerce and online banking.

In 1995, the NSFNET, which had served as the backbone of the Internet, was decommissioned, and restrictions on carrying commercial traffic were lifted. This opened the floodgates for the commercialization and rapid growth of the Internet.

A Uniform Resource Locator (URL) is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. It is colloquially known as a web address.