Post on 04-Jan-2016
Computers Are Your Future
Tenth Edition
Spotlight 3: Home Network
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 1
22
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Printed in the United States of America.
Copyright © 2009 Pearson Education, Inc. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice HallPublishing as Prentice Hall
Spotlight 3: Home Network
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 3
Wired Home Networks
Home networks: Provide users with the ability to share
files and other resources Can be configured as either wired or
wireless Utilize the Ethernet communications
standard to stipulate how data is transmitted
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 4
Wired Home Networks
Ethernet-connected computers transmit data in small pieces called packets that include: The data being sent The source computer address The destination address
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 5
Wired Home Networks
The Ethernet standard dictates: The wiring required The speed of data transmission over
the network The wire and transmission speeds
Cat-5 with a transmission speed of up to 100 Mbps.
Cat-6 with a transmission speed of up to 1,000 Mbps.
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 6
Wired Home Networks
Computers on an Ethernet network are linked through a communication device such as a switch or router. A switch permits the transmission of
data on a single network. A router permits the transmission of
data on multiple networks, including the Internet.
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 7
Wired Home Networks
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 8
Wired Home Networks
Each Ethernet network computer must have an internal communications device called an Ethernet network adapter (network interface card, or NIC), which permits computers to communicate with each other.
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 9
Wired Home Networks
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 10
Home power-line networks connect computers through the electrical wiring.
Wireless Home Networks
Home Wi-Fi network A wireless network Uses radio signals to transmit data Data transmission accomplished
through network access points Communications devices Wireless routers
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 11
Wireless Home Networks
Wireless home networks can be: Peer-to-peer Client/server
Peripherals must be within the range of the network router—approximately 100 to 300 feet.
Wireless networks use the 802.11 specification for wireless transmission.
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 12
Wireless Home Networks
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 13
Setting Up a Home Network
Steps to setting up a large or small network: Planning Configuration Maintenance and support
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 14
Setting Up a Home Network
Planning Decide on the network technology Determine what hardware to
purchase Configuring
Decide which computers to network Install the hardware and software Decide how to share data,
peripherals, and the InternetCopyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 15
Setting Up a Home Network
Maintaining and supporting Set up a regular
computer and network maintenance schedule
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 16
The Future of Home Networking
In the future, home networking systems: Will most likely be wireless Will provide such features as:
Controlling household appliances Preparing food Maintaining a home’s appearance Managing home network events
Temperature regulation Communication
Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 17