ICOM6012 Topic 1 Overview

Author: Yu Zhang | 168 words, 1 minutes | 2020-09-09 | Category: Notes

hku, icom6012, internet

Translations: ZH

ICOM6012 Internet Infrastructure Technologies

Topic 1 Overview

Internet’s Birthday: Sept. 2 or Oct. 29, 1969.

  • ARPANET (1969 -)
    • TCP protocol in 1974
    • “Internet = Internetworking”
  • NSFNET (1986 -)
  • The Internet (late 1980s)

Some Interesting Topics about Internet (More than Technical)

Evolution of Computers

  • Mainframe
  • Mini-Computer
  • Workstation
  • Personal Computer
  • Laptop
  • Smart Phone
  • mm-scale sensors


Semiconductors in Computers

  • Transistor: a semiconductor device used to amplify or switch electronic signals and electrical power.


  • IC: a set of electronic circuits on a small flat piece (“chip”) of semiconductor. Makes extensive use of transistors.

Electronic circuit: Processing (Computing), DC

Electrical circuit: Powering, AC

Integrated Circuit

To Make an IC

  • Design
  • Fabrication (fabrication plants/factories, “foundries” or “fabs”)


“Fabless” Chipmakers

  • Design and sells chips but outsources the fabrication
  • Create significant savings for fabless companies

Gordon Moore: Intel Founder

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Yu Zhang


Yu Zhang

Blockchain Developer, MSc Graduate in ECIC(Electronic Commerce and Internet Computing) @ The University of Hong Kong (HKU). Love to learn and build things. Follow me on GitHub