This presentation is a lesson about computer networks for grade level 6-8, 9-12, and basic adult education.

1. Image Courtesy of Microsoft Clip Art
Basic Computers 101
Created by Beashua Spearman

2.  After completing this lesson, students will
be able to…
 Explain what a computer network is
 Identify the key terms related to
computer networking.
 Understand the terminology associated
with computer networking

3.  Local Area Network (LAN)
 Wide Area Network(WAN)
 Metropolitan Area Network (MAN)
 Workstation/Workgroups
 Wireless Area Network(WLAN)
 Wi-Fi
 Clusters

4.  Clients
 Hosts
 Servers
 Network interface Cables
 802.11 a
 802.11 b
 802.11 g
 802.11 n

5. Computer Networks Part I: The
Mystery of Computer Networks…
How They Work!

6.  A Network is a system of two or more
computers that are connected through a
series of cables
 Examples: Infrared light beams, satellite
connections, wireless towers, or telephone
lines
Source:
Image Courtesy of Microsoft Clip Art

7. The Local Area Network (a.k.a) LAN is
a…
 Smaller network limited to a geographic
setting.
 The computers are connected through
cables.
 Examples: 1 Home or 1 School computer
lab or library
Source:
Screen shot Image
Courtesy of Microsoft Clip
Art

8. The Wide Area Network(WAN) is…
 Any area over 30 miles
 It connects a larger geographic area
 Examples: Arkansas, the United
States, and the Global World
 Includes global networks
(e.g. The Internet)
Source:
Image Courtesy of Microsoft Clip Art

9.  The MAN network is the Metropolitan
Area Network.
 It has a span of 30 miles
 Its reach is about 2 buildings
Source:
Screenshot Courtesy of:
Learn-networking.com

10.  A Workstation is a personal home
computer
 It can be a desktop computer used in a
business.
 It connects human beings together
through the use of the desktop computer.
 E.g. A Tokyo stockbroker communicates
with a Wall Street stockbroker through
email communication.

11.  A Node is a device that is connected to a
computer
 Example: Printer, Scanner, Server, Laptop
 The Internet is not required within a
network
 Most Common Node: Desktop Style
computer(Workstation)
Source:

12.  A Cluster is a group of server operating
systems.
 Computers connected to be viewed as a
“Single System”
 Within a Local Area Network (LAN)
 Runs on its own operating system
Screenshot Courtesy of Cluster Computing

13.  Client: A Part of the network that
receives the data.
 Host: A part of the network that gives
the data.
 The data is accessed from the Host

14.  Server: The same data or information
different users receive.
 E.g. Five different people in various countries
search for the word Red Rose in the Google
Search Engine and they all receive the same
results.
 Network Interface Cables (NIC): A card
that is installed in a computer that allows
wireless or Ethernet cable usage to access
the internet.

17.  Computer Networks Part II: The
Mystery of Computer Networks… How
They Work!: A Wireless World

18.  The Wireless Network (WLAN) is the…
Image Courtesy of Microsoft Clip Art

19.  Wi-Fi is another name for the wireless
local area network.
Image courtesy of Starbucks.com

20.  802.11 a, 802.11b are the first
regulations within the wireless networking
standards.
 802.11g, 802.11n are the recent Wi-Fi
regulations within the original Wi-Fi
802.11b
 The 11 represents the speed of the
network connection.
Source: