This presentation provides a summary of the history and progression of computer architecture from the 1940s to present day. It begins with early mechanical computing devices like the abacus. Important early electronic computers are discussed such as the ENIAC from 1946, the EDSAC from 1949, and the UNIVAC I from 1951. The presentation then outlines the progression of technology from vacuum tubes to transistors to integrated circuits to microprocessors. Examples of important CPU architectures like the Intel Pentium are presented. Components of modern computer systems like motherboards, memory, ports, and chipsets are briefly described.