Generations of Computers
The transistor was invented in 1947 but did not see widespread use in computers until the late 1950s.Transistors replaced vacuum tubes and ushered in the second generation of computers. Second-generation computers still relied on punched cards for input and printouts for output.
Alan Mathison Turing, (23 June 1912 – 7 June 1954) was a British pioneering Computer scientist, mathematician, logician, cryptanalyst and theoretical biologist. He was highly influential in the development of computer science, providing a formalisation of the concepts of algorithm and computation with the Turing machine, which can be considered a model of a general purpose computer. Turing is widely considered to be the father of theoretical computer science and artificial intelligence.
Sir Timothy John Berners-Lee (born 8 June 1955), also known as TimBL, is an English computer scientist, best known as the inventor of the World Wide Web. He made a proposal for an information management system in March 1989, and he implemented the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server via the Internet sometime around mid-November of that same year.
In this generation, there were developments of large-scale integration or (1000 devices per chip) and very large-scale integration or VLSI (10000 devices per chip). These developments enabled the entire processor to fit into a single chip and in fact, for simple systems, the entire computer with processor; main memory and I/O controllers could fit on a single chip.