The switching 60sThe switching 60s Telephone Telephone network is the dominating communication...

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1.7 The history of Computer Networking and the Internet 20 minutes of joy with Patric and Andreas

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Transcript of The switching 60sThe switching 60s Telephone Telephone network is the dominating communication...

Page 1: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

1.7 The history of Computer Networking and the Internet

20 minutes of joy with Patric and Andreas

Page 2: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

The switching 60’s

Page 3: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

Telephone

Telephone network is the dominating communication network

Used circuit switching

Page 4: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

Computer communication

Short bursts of information

Long inactivity periods

Packet switching More suitable for this type of communication More robust

Page 5: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

ARPAnet

Advanced Research Projects Agency at MIT The first packet switching network

IMP (Interface message processor) installed at UCLA UC Santa Barbara Stanford Univ. of Utah

Page 6: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

The 70’s

Page 7: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

1972:

ARPAnet is now consistent of 15 nodes

The first host-to-host protocol NCP (Network Control Protocol) enables

applications to be written First e-mail program

Page 8: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

New networks emerging…

ALOHAnet Enabling communication over microwaves between the Hawaiian

Islands.

Telenet Commercial packet switching network based on ARPAnet’s technology

Cyclades French packet switching network

IBM’s SNA Parallelled ARPAnet’s work

Tymnet, GE Information Services network etc. Time sharing networks

Page 9: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

Networks of networks

DARPA (Defence ARPA) funded the connection of networks

Networks of networks also called inernetting

Page 10: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

Protocols

(early version of) TCP was used for connecting the networks

Forwarding functions IP

UDP

Page 11: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

More Protocols

Ethernet protocol Enabling wired based

broadcast sharing networks

Laying the foundation for LAN

ALOHA Protocol Multiple access

protocol

Page 12: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

The 80’s

Page 13: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

More computer networks

BITNET University e-mail and file sharing

CSNET Linking researchers without access to the ARPAnet

NSFNET Connection to supercomputing centers 56kbps backbone, later 1,5Mbps and serving as

the linking backbone between regional networks

Page 14: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

Standardisation

TCP/IP replacing NCP as the standard host protocol for ARPAnet

The late 80’s: Congestion control is added to TCP DNS is invented

Page 15: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

The 90’s

Page 16: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

Commercialisation

ARPAnet closes down

NSFNET serving as backbone connecting the regional networks and opening the network for commercial purposes

In 1995 NSFNET is decomissioned and Internet Service Providers serves as the new backbones in its place

Page 17: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

Developments

The key components of the web: HTML, HTTP, web server and a web browser is developed in the early 90’s

93: web browsers with GUI.

95: Web commerce

Killer applications: E-mail The Web IM (ICQ) P2P file sharing (Napster)

Page 18: The switching 60sThe switching 60s Telephone Telephone network is the dominating communication network Used circuit switching.

The rest is history…


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