principles of technology computing fundamentals
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Principles of Technology Computing Fundamentals. Unit 4- Networks. Objectives. Identify what a network is. Describe the benefits of a network. Identify ways to connect to a network. Compare & contrast a client-server network and a peer to peer network. Describe a LAN. Describe a WAN. - PowerPoint PPT PresentationTRANSCRIPT
Principles of TechnologyComputing Fundamentals
Unit 4- Networks
Identify what a network is. Describe the benefits of a network. Identify ways to connect to a network. Compare & contrast a client-server network
and a peer to peer network. Describe a LAN. Describe a WAN. Describe the Internet Compare & contrast an Intranet & Extranet.
Objectives
Computers need to communicate with each other
2 or more connected devices◦ Share files & resources
Standards allowed them to “speak the same language”
Computer Networks
Central Storage of files
Share files, resources, printers
Maintain network centrally
Secure
Backup
Network Benefits
Unauthorized shared data
Network failure
Easy to spread malicious programs & viruses
Loss of privacy
Network Disadvantages
NIC Ethernet Cable Wireless NIC Router Cable/DSL/FiOS Modem
Networking Components
Client-Server Network Used in
business/schools
Computers & devices connect to a server
Peer to Peer Network Used at home (NO SERVER) Router allows devices to connect to each other Also allows shared Internet connection
Comcast Cable Modem◦ Through cable TV wire◦ High Speed Broadband
Verizon DSL◦ Over phone line◦ High Speed Broadband◦ Limited distance
Verizon FiOS◦ Over fiber cable line◦ High Speed Broadband◦ Limited areas
Sharing Internet at Home
Look at Modem’s WAN or INTERNET port
Comcast◦ Coax Cable Wire
Verizon DSL◦ DSL Modem connects to Phone Jack◦ Filters on phones
Verizon FiOS◦ Cable Wire
Dial-Up◦ Computer modem to phone jack
Identify what you have?
What Do You Have at Home?
Identify your Internet connection
Add a diagram to your “My Computer” PPT◦ Use pictures of your devices◦ Show wired & wireless connections◦ Show modems/routers and how they connect◦ Don’t forget cell phones, TV’s, video games,
tablets, thermostats, etc.
Assignment
Network Categorized- LAN
LAN◦ Local Area Network◦ Devices connected in small area◦ This classroom, this school, your house
Network categoriezed- WAN
WAN◦ Wide Area Network◦ Connects LANs◦ Over a large geographic area
Internet Originally for government
Largest network
What’s the most commonly used feature on the Internet?◦ Email◦ Email is stored on a server
NOT ON PC
What device allows the sharing of Internet access?◦ Router
What is the purpose of a network?◦ Sharing files & resources
How many wires are in an Ethernet cable?◦ 8
What does LAN stand for?◦ Local Area Network
Review
Intranet Looks like Internet
Private◦ Only works w/in company network◦ Great security
Handbooks, forms, news, policies
Intranet Screenshot
Extranet Private
◦ Allows outside organization to access internal info◦ Extension of intranet
Outside suppliers
Employees
Strict security◦ Username & password
Extranet Screenshots
End of Day Two
Review A room of 5 connected computers describes
a…◦ LAN
To connect to a network, your PC must have a…◦ NIC
This type of “Internet” is for internal use only within a business.◦ Intranet
Principles of TechnologyComputing Fundamentals
Unit 4- Networks