INTRODUCTION TO THE INTERNET Internet Protocol Cameras Training: Session 1

Introduction Tell us about yourself!

Session Agenda ActivityTime Introductions, Agenda, and Materials8:30-8:45 Discussion: Web Browsers and URLs8:45-9:00 Activity 1: IP Addresses and follow-up discussion9:00-9:15 Activity 2: Discovery – Internet and Networking Terms9:15-9:35 Discussion: Internet and Networking Terms9:35-10:05 Break10:05-10:20 Video: Warriors of the Net and Follow-Up Discussion10:20-10:40 Discussion: IP Cameras and Surveillance10:40-11:00 Activity 3: Class Discussion – Why IP Cameras?11:00-11:15 Q&A11:15-11:30

Discussion Web Browsers & URLs

Mozilla Firefox Internet Explorer Web Browsers  Graphical interface used to access resources on the World Wide Web

Uniform Resource Locator (URL)  Easy to remember web address  Typed into address bar or accessed via hyperlink Protocol Domain

Activity 1: URLs and IP Addresses  Access your web browser  Type each of the following IP addresses in the address bar and press the ENTER key     

Activity 2: Internet & Networking Terms Take the next 20 minutes to search for Internet and Networking Terms

Group 1: Internet & Networking Terms 1) a/b/g/n _____5) Server _____ 2) Client _____6) Switch _____ 3) Intranet _____7) WEP and WPA _____ 4) Packet _____ a. Specifications for Wireless Local Area Networks; data is transmitted over either the 2.4 GHz band or the 5 GHz band at various speeds (up to 100 mbps) b. Security standards for wireless networks; provides data encryption c. On the Internet, this device determines the output port to use so data packets continue to travel to their correct destination d. In a client/server relationship, the program or device that actually makes the request e. Internal or private network accessed within the confines of a company or organization f. Small amount of computer data sent over a network; each one contains address of its origin and its destination g. In a client/server relationship, the device that provides the information

Group 2: Internet & Networking Terms 1) DNS _____5) Ping _____ 2) Hot Spot_____6) TCP/IP _____ 3) IP _____7) Web Browser _____ 4) Node _____ a. A node that provides Wireless access to the Internet for users of portable computer devices; often available for a fee in public places b. Short for domain name system; helps match names of sites to their IP addresses c. Test to see if a system on the Internet is working; tests and records the response time of the server d. Stands for Internet Protocol; provides a standard set of rules governing how data is transmitted through the Internet; routes the data e. A connection point on a network f. Program people use to access the World Wide Web; it interprets coded pages to return formatted text, graphics, and links g. Stands for Transmission Control Protocol/Internet Protocol; breaks information into packets on the sending end and reassembles them on the receiving end

Group 3: Internet & Networking Terms 1) Backbone _____5) IP Address _____ 2) Domain Name_____6) MAC Address _____ 3) Host _____7) Port _____ 4) HTTP _____ a. Name that identifies a web site b. A computer that is connected to a TCP/IP network; has a unique IP address c. Main network connection composing the Internet; moves data along at very high speeds and for very long distances d. Hardware identification number that uniquely identifies each device on a network; manufactured into the device and cannot be changed; sample format: ab e. Numeric address that identifies each sender or receiver of information on the Internet; included in data packets; sample format: f. Hypertext Transfer Protocol; protocol for transferring data on the World Wide Web; browsers send HTTP requests to web servers g. Endpoint to a logical connection; the way a client program specifies a particular server program on a computer in a network; has number preassigned based on the type of traffic

Group 4: Internet & Networking Terms 1) Bandwidth _____5) Proxy Server _____ 2) DHCP_____6) UDP _____ 3) Hub _____7) WiFi _____ 4) LAN _____ a. The amount of data you can send through a network or modem connection b. Central connection point for all the computers in a network c. Dynamic Host Configuration Protocol; dynamically assigns IP addresses to networked computers d. Local Area Network; computer network limited to small area, such as an office or a building e. Wireless Fidelity; refers to wireless network devices that conform to the standards f. Server that computers must go through before gaining access to the Internet; often used to filter what can be viewed on the Internet g. User datagram protocol; part of TCP/IP; considered 'stateless' because it doesn't acknowledge the packets have been received; usually used for streaming media, such as video

Group 5: Internet & Networking Terms 1) Bridge _____5) URL _____ 2) Internet_____6) WHOIS _____ 3) Latency _____7) Wireless Network _____ 4) Mbps _____ a. Network where data is transmitted through radio signals instead of through cables b. Internet service that finds out information about a domain name or IP address c. Stands for megabits per second; measurement of how fast data is transmitted across a network; not the same thing as megabytes d. Uniform resource locator; address of a specific web site or file on the Internet; not all of them begin with http e. Communications network made up of a countless number of computers and networks f. Amount of time it takes for a packet of data to move across a network connection g. Connects two or more LANs together; doesn't analyze data - just transports it

Group 6: Internet & Networking Terms 1) Cache _____5) Router _____ 2) Ethernet Network_____6) WAN _____ 3) Firewall_____7) World Wide Web _____ 4) Network Interface Card _____ a. Network where data is transmitted through cables b. Limits the data that can pass through it and protects a networked server or client machine from damage by unauthorized users; can be hardware or software based c. Card that makes the connection between the computer and the network cable d. Stores recently retrieved information so it can be accessed again very quickly e. Wide-Area network; similar to a LAN, but much larger f. Actually a subset of the Internet; consists of pages that can be accessed using a web browser g. Routes data (hence the name) from a local area network (LAN) to another network connection; wireless routers typically include a firewall and allow users to share an Internet connection

Discussion Internet and Networking Terms

High Level Overview

Brief Internet History  Origins stretched back as far as World War II  Actually launched in 1969 as ARPAnet  Computer usage began to grow in late 1970s  Domain Name System introduced in 1984  First dial-up Internet Access: 1990  World Wide Web introduced in 1991  First web browser – 1993  First version of Internet Explorer

Networks in General  Simple network definition  Reason for networking

Accessing the Internet  Computer with network access  Dial-up, Cable, DSL, FIOS, Satellite  Web browser software installed

Looking At Networks  Local Area Networks  Wide Area Networks  Nodes  Routers  Internet Backbone

Data Transmission Speeds  Data transmission speeds – think Mbps  Latency & Bandwidth – determine network speed

Wireless Networks   Wi-Fi  Routers  Firewalls  Security

Break 15 minute break

Video Warriors of the Net

IP Cameras – What Are They?  Internet Protocol Cameras  Shared on network  Assigned an IP address like any network device

IP Cameras for Surveillance  Advantages of IP Cameras  Why not USB cameras?  Why not CCTV?

Activity 3: Class Activity  Your supervisor has asked you not only about the pro’s and con’s of using IP cameras in surveillance, but also how data is transmitted through the network. List some key points you would want to mention.

Wrap Up Any Questions?