Chapter 1
Introduction
A note on the use of these PowerPoint slides:
We’re making these slides freely available to all (faculty, students,
readers). They’re in PowerPoint form so you see the animations; and
can add, modify, and delete slides (including this one) and slide content
to suit your needs. They obviously represent a lot of work on our part.
In return for use, we only ask the following:
If you use these slides (e.g., in a class) that you mention their
source (after all, we’d like people to use our book!)
If you post any slides on a www site, that you note that they are
adapted from (or perhaps identical to) our slides, and note our
copyright of this material.
Computer Network
For a revision history, see the slide note for this page.
Top-Down Approac
Thanks and enjoy! JFK/KWR 8th edition
All material copyright 1996-2020
Jim Kurose, Keith Ross
J.F Kurose and K.W. Ross, All Rights Reserved Pearson, 2020
,Chapter 1: introduction
Chapter goal: Overview/roadmap:
Get “feel,” “big picture,” What is the Internet? What is a
introduction to terminology protocol?
• more depth, detail later in Network edge: hosts, access net
physical media
course
Network core: packet/circuit sw
internet structure
Performance: loss, delay, throug
Protocol layers, service models
Security
History
,The Internet: a “nuts and bolts” view
Billions of connected mobile network
computing devices: national or globa
hosts = end systems
running network apps at
Internet’s “edge”
Packet switches: forward
local or
packets (chunks of data) Internet
regional ISP
routers, switches
home network content
Communication links provide
network
fiber, copper, radio, satellite
transmission rate: bandwidth
Networks enterprise
collection of devices, routers, network
links: managed by an organization
, “Fun” Internet-connected devices
Tweet-a-watt:
monitor energy
Pacemaker & Monitor
Amazon Echo Web-enabled toaster +
IP picture frame
weather forecaster
Internet
refrigerator
Slingbox: remote cars
control cable TV
Security Camera AR devices
sensorized,
bed
mattress
Gaming devices
Othe
Internet phones Fitbit
Introduction
A note on the use of these PowerPoint slides:
We’re making these slides freely available to all (faculty, students,
readers). They’re in PowerPoint form so you see the animations; and
can add, modify, and delete slides (including this one) and slide content
to suit your needs. They obviously represent a lot of work on our part.
In return for use, we only ask the following:
If you use these slides (e.g., in a class) that you mention their
source (after all, we’d like people to use our book!)
If you post any slides on a www site, that you note that they are
adapted from (or perhaps identical to) our slides, and note our
copyright of this material.
Computer Network
For a revision history, see the slide note for this page.
Top-Down Approac
Thanks and enjoy! JFK/KWR 8th edition
All material copyright 1996-2020
Jim Kurose, Keith Ross
J.F Kurose and K.W. Ross, All Rights Reserved Pearson, 2020
,Chapter 1: introduction
Chapter goal: Overview/roadmap:
Get “feel,” “big picture,” What is the Internet? What is a
introduction to terminology protocol?
• more depth, detail later in Network edge: hosts, access net
physical media
course
Network core: packet/circuit sw
internet structure
Performance: loss, delay, throug
Protocol layers, service models
Security
History
,The Internet: a “nuts and bolts” view
Billions of connected mobile network
computing devices: national or globa
hosts = end systems
running network apps at
Internet’s “edge”
Packet switches: forward
local or
packets (chunks of data) Internet
regional ISP
routers, switches
home network content
Communication links provide
network
fiber, copper, radio, satellite
transmission rate: bandwidth
Networks enterprise
collection of devices, routers, network
links: managed by an organization
, “Fun” Internet-connected devices
Tweet-a-watt:
monitor energy
Pacemaker & Monitor
Amazon Echo Web-enabled toaster +
IP picture frame
weather forecaster
Internet
refrigerator
Slingbox: remote cars
control cable TV
Security Camera AR devices
sensorized,
bed
mattress
Gaming devices
Othe
Internet phones Fitbit
