COMM 226 Chapter Notes - Chapter 4: Central Processing Unit, Computer Hardware, Usb
7 May 2015
School
Department
Course
Professor
Document Summary
At your next family gathering, ask your older relatives about the technologies that existed back then. Depending on their ages, socioeconomic status, and where they grew up, their answers will vary. You might comfortable with technologies such as mobile phones, tablets, mp3. Players, and internet enabled services that include youtube, facebook, Your grandparents grew up being familiar with cars, the telephone, the television and air travel. Q2) where all of this information technology stuff come from: early computers: 1939-1952. Were financed by the united state military: mainframes: 1952-present. First digital computers large, room-sized devices based on now obsolete vacuum tube technology, were called mainframes. Mainly used by business and government: 1st generation. Transistors, which is smaller, easier to maintain and more reliable. A typical second generation mainframe would often include a central processing unit(cpu), short term memory and long term memory. The firs microcomputers = mits altair 8800 developed 1975.
