The Basic Computer Network-Hardware within Mountain High School

presented by Karen Kelly for Ed Tech 541

Introduction

Demographics

Mountain High School has a• Staff ~ 45 • Student population ~ 800 • Relatively diverse population

(International Program and Student Exchange Program)

• A high percentage of students that move on to College and University after graduation.

School Objective

" To be able to provide our 21st Century learners with the tools they need to learn in today's modern world."

School Needs

“To utilize technology to improve engagement”.

So how is it connected?

How is it possible to…

Lets take a look…

First: Some basic terminology….

Network Computers linked to ‘share’ information. Minimum - 2 computers Maximum - ?

TCP/IP

Transmission Control Protocol/Internet Protocol

The standards/rules for computers so they can communicate within networks.

ISP

Internet Service ProviderRequired in order to connect to the Internet.

Example: Shaw

Second: The Goods ….

Our school uses a Local Area Network or LAN.

LAN’s typically • Have higher data transfer rates, • Are used with smaller

geographic ranges, and • Lack the need for leased

telecommunication lines.

Our school is connected to the district through a WAN (Wide Area Network)

• The connection is to the Shaw cable server.

• It connects larger geographical regions.

Each of the Personal Area Networks (or PAN) in our classrooms are connected to the LAN in our school.

All of the rooms in our school are wired with Ethernet technology and use category 5 (Cat5) cable.

This is then connected to longer coaxial (galvanic) cable that leads to the routers.

All Ethernet connections

Understand IP protocol. Are connected to a central or ‘top’ access

distribution router that connects to the the Intranet and Internet.

Intranet

• The internal school network of organizational information.

• Controlled by administration. • Specifies authorized users. • Uses the Internet Protocol and

IP based tools.• Has one web server.• Protected from being accessed

from the Internet without proper authorization.

The Internet

• Is a worldwide interconnection of networks.

• Uses Internet Protocol (IP) Suite.

• Is the communications base for the World Wide Web (WWW).

• Is not considered to be a part of the Intranet.

Basic HardwareOn Computers (or Workstations)– A NIC (Network Interface Card)– An Ethernet jack to plug in Ethernet

cable.Devices (To Interconnect network

nodes)– Cables-connect Ethernet cable from

computers to router.– File Sever – Computer at heart of

LAN which controls network.– Switches – repeat signals over short

distances to router. – Router-translates and sends info to

correct place in the world.

NIC

Ethernet Jack

Cable

Switches

Router

Basic SoftwareOn Computers– Web browser software– HTTP (Hypertext Transfer

Protocol) (An Internet-based protocol for sending and receiving webpages.)

Web browser Software

Examples: Library, 3 Computer Labs, Office, and Staff Computers in each classroom.

Have• Wired LAN connecting PC’s

running a protocol (IEEE 802.3) through a system of interconnected devices and eventually connect to the Internet.

Library

Computer Labs

The library network is a branching tree topology and controls access to resources.

All wired PC’s, have access to• Internet, • Card catalogue, and• The local printer. All user computers, have only

access to • Internet.

Branching Tree Topology

The staff computers, in each classroom, all can

• Access and use a limited part of

the school network including attendance and reporting records.

• Use Internet • Access the library, and• Use the local printer.

Several of the rooms in our school are also connected to wireless technology. (WLAN)

These devices use high-frequency radio wave ‘spread spectrum’ technology for transmission.

Wireless

Examples: Library, and Student Multipurpose Room

Have• Wireless LAN for users to

interconnect local devices and to connect to the internet.

Do Not Have• Access to a printer or• Access to the school network.

References

An educator's guide to school networks. (2010). Florida Center for Instructional Technology. Retrieved from http://fcit.usf.edu/network/

Computer network. (2010). made IT information of technology. Retrieved from http://madeit.co.cc/computer-network-part-13/

Credits for Images

Slide #1: School – Photograph Karen KellySlide #8: Simple Network - http://bit.ly/98EpHYSlide #12: LAN -http://bit.ly/aBvA1nSlide #13: WAN - http://bit.ly/aBvA1nSlide #13: PAN - http://bit.ly/a5n3acSlide #14: Ethernet - http://bit.ly/cCkoVMSlide #14: Coaxial Cable - http://bit.ly/9qf46lSlide #16: Intranet – http://bit.ly/agdcQJSlide #17: Internet - http://bit.ly/dh8MdLSlide #18: NIC - http://bit.ly/9JKk7vSlide #18: Ethernet Jack - http://bit.ly/dagih9Slide #18: Coaxial Cable - http://bit.ly/b5eXtqSlide #18: Switch - http://bit.ly/cxnYMzSlide #18: Router - http://bit.ly/9TJhs9Slide #19: Web Browsers- http://bit.ly/cCZPuHSlide #20: Library - http://bit.ly/b1hdwbSlide #20: Computer Lab - http://bit.ly/9KztBDSlide #21: Branching Tree Topology - http://bit.ly/c2kYV7Slide #23: Wireless - http://bit.ly/93c0ab

Thank You!