IB Digital Society 3.4B Components of Computing Networks Notes

3.4B Components of Computing Networks

The Building Blocks

A network depends on specialised components that move data; most are invisible (in a cupboard or street cabinet) yet nothing online works without them.

Components split into two kinds: edge components (modem, router) sit at the boundary with the outside world; internal components (switch, wireless access point) connect local devices to each other.

Modem and Router

A modem is the bridge to the outside world: it converts between the home network's signals and those on the provider's line, so it actually connects a household to the internet.

A router directs data between networks and shares one connection among many devices, working out where each piece of data should go so a phone, laptop, and TV can all use it at once.

Often combined in one box, but the roles are distinct: the modem gets you onto the internet; the router shares and directs that access inside the home.

Hub and Switch

A hub broadcasts any data it receives to every connected device, whether or not it was the intended recipient: cheap and simple, but wasteful and less private.

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Note

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Tip

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Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

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Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

IB Digital Society 3.4B Components of Computing Networks Notes

3.4B Components of Computing Networks

The Building Blocks

Modem and Router

Hub and Switch

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

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3.4B Components of Computing Networks

The Building Blocks

Modem and Router

Hub and Switch

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

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Topic 1 - Introduction - Digital Society1 subtopic

Topic 2 - Concepts - Digital Society7 subtopics

Topic 3 - Content - Digital Society7 subtopics

Topic 4 - Contexts - Digital Society7 subtopics

Topic 5 - Challenges and Interventions - Digital Society (HL)3 subtopics

IB Digital Society 3.4B Components of Computing Networks Notes

Topic 1 - Introduction - Digital Society1 subtopic

Topic 2 - Concepts - Digital Society7 subtopics

Topic 3 - Content - Digital Society7 subtopics

Topic 4 - Contexts - Digital Society7 subtopics

Topic 5 - Challenges and Interventions - Digital Society (HL)3 subtopics

3.4B Components of Computing Networks

The Building Blocks

Modem and Router

Hub and Switch

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

3.4B Components of Computing Networks

The Building Blocks

Modem and Router

Hub and Switch

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account