Presenation_Gateway

Ping game

Instruction. Part 1

Choose your pair to play this game. Get the small piece of paper, where were hidden the names of your pair.
Say hello! And introduce yourself.
Get your address in network.
Define in pairs who is going to find data, and who will write down the data on paper.
Find the data by using your address, which is written on your paper.

You have just 5 minutes…

https://www.online-stopwatch.com/world-games-running/

Instruction. Part 2

Stop transmitting data.
Calculate the number of words, it can be prepositions, articles etc., but not symbols.
Tell about the name of topic and amount of words.
Claps three times for the winners.

Question. Guess

What is the name of the topic for today’s lesson?

Gateway

Learning objective

Network Hardware

Provides the physical interface between computer and cabling.

What is the purpose of a NIC?

In the computer, data moves along buses in parallel, as on a four-lane highway. But on a network cable, data travels in a single stream as on a one lane highway.
The NIC’s job is to translate the data from the computer into signals that can flow easily along the cable. It does this by converting digital signals into analog signals.

Network interface card (NIC)

Network interface card (NIC)

Ethernet port

Coaxial port

Wireless NIC

What is the purpose of a HUB?

Hubs are devices used to link several computers together.

HUB

A hub repeats any signal that comes in on one device and copies it to all other devices connected to the hub.
There are two types of hubs:
Passive hubs (not powered): connect all devices together.
Active hubs (powered): use electronics to amplify and clean up the signal before it is broadcast to the other devices.

Hub

What is the purpose of a SWITCH?

A switch is a computer network device that connects network segments.

SWITCH

Network switches are capable of inspecting data packets as they are received, determining the source and destination device of that packet, and forwarding it appropriately.
By delivering each message only to the connected device it was intended for, a network switch conserves network bandwidth allowing for better system performance.

SWITCH

What is the purpose of a BRIDGE?

Joins similar topologies and is used to divide LANs into segments.

BRIDGE

If a bridge knows the destination address, it is able to forward packets to that address, otherwise a bridge will forward the packets to all devices.
Filters out noise.

BRIDGE

Wired bridge

Wireless bridge

What is the purpose of a ROUTER?

A device that interconnects with two or more computer networks, which then interchange packets with each other.

Router

Routers are important devices that let messages flow between networks, rather than within networks.
Home networks use a wireless or wired Internet Protocol router. An IP router, such as a digital subscriber line (DSL) or a cable modem broadband router, joins the home’s LAN to the WAN of the Internet.
Broadband routers combine the functions of a router with those of a network switch and a firewall in a single unit.

ROUTER

What is the purpose of a MODEM?

Modern modems, modulate and demodulate the signals and build connection to the Internet

MODEM

It is a hardware component that allows a computer or other device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to a digital signal that a computer can recognize. Similarly, it converts outgoing digital data from a computer or other device to an analog signal.

MODEM

What is the purpose of a GATEWAY?

Gateways are routers that rout between networks, however, they also perform protocol conversions so that different networks can work together.

GATEWAY

A gateway is an essential feature of most routers. A gateway may contain devices such as protocol translator, impedance matching devices, rate converters, fault isolators, or signal translators as necessary to provide system interoperability.

GATEWAY

GAME. REMEMBER ALL WORDS

Network

Connector

HUB

Cable

Switch

Packet

Bridge

Signal

Ping

Modem

Card

Ethernet

Router

Firewall

Workstation

You have just 3 minutes…

https://www.online-stopwatch.com/world-games-running/

Make a presentation. Instruction

1. Divide to the groups, as the names of topology: star, bus, ring and tree.
2. Use the different resources to identify 3 advantages and disadvantages of network devices.
3. Identify in the groups, who will present advantages and disadvantages to the other groups and who is going to stay and collect all data.

Make a presentation. Instruction

You have just 5 minutes…

https://www.online-stopwatch.com/world-games-running/

Make a presentation. Instruction

Go to the other groups and introduce advantages and disadvantages of network devices. The presenters should introduce information for pupils as much as possible.
Who is stayed in the group, they need to write down all information, that they have listened. After this they will explain it for partners in their groups.

You have just 10 minutes…

https://www.online-stopwatch.com/world-games-running/

Play kahoot!

Formative Assessment

You have just 15 minutes…

https://www.online-stopwatch.com/world-games-running/

Reflection

References

https://en.wikibooks.org/wiki/A-level_Computing/AQA/Print_version/Unit_2
http://searchsoa.techtarget.com/definition/URI
http://stackoverflow.com/questions/176264/what-is-the-difference-between-a-uri-a-url-and-a-urn/1984225#1984225
https://www.youtube.com/watch?v=MwxMsaFFycg