Title: Class Outline 2
Course: KVCC CPT128 > Section: Class Outlines

History of Computers Outline/Lecture notes

1.      What is a network/Why are they used?

a.      Purposes

i.           Communication

1.      The communication can take the form of pictures, text including full words and code, audio, video, and just about any other format humans can imagine. For as long as humanity has existed there has been a need to reach and find others and then be able to communicate with them.

ii.           Sharing of resources

1.      Networks allow for the sharing of data and resources across whatever medium that is being used. This could include anything from files to a device like a printer.

2.      Early communication systems

a.      Messenger and relay systems

i.           Genghis Khan relay stations around 140 miles apart

b.      Animal carriers

c.      Heliographs “Write with the sun”

d.      Flags

e.      Smoke and Fire signals

f.       Semaphore

g.      Electrical Telegraph

i.           Telegram

ii.           Cablegram – submerged cable or wire

iii.           Telex

h.      Telephone

3.      Early Computers/Main Frames

4.      First networks

a.      Sneaker net

b.      Vendor Networks

5.      Time Sharing

6.      Development of Packet Switching over Circuit Switching

7.      Arpanet – Advanced Research Projects Agency – Later added the Defense

a.      Interface Message Processors or IMPS

b.      Do it to it, Truett

8.      TCP/IP

a.      V4 created in 1978 and added to Arpanet in 1983.

9.      Email

a.      Developed in 1972 as an extension of a program to write messages to different uses sharing a terminal.

10.  Nsfnet

a.      1990 the Arpanet shutdown and all 300,000 connections were moved to the National Science Foundation Network or NSFNET. The network continued to grow and at this point there was much demand for a commercial expansion. By 1991 the demand grew until the 1991 when the NSFNET changed its policy to allow other connections beyond its original research purposes.

b.      April 30 1995 the NSFNET was dissolved.

11.  BBS Systems

12.  Modern Internet

Attached Files: | - KVCC CPT128_FundNetworkAdmin_Outline 2.pdf