2.1.1 Connected digital systems and smart devices

As DigiTech
2.1.1 Connected digital systems and smart devices
a) How digital systems connect

Match

Specialist hardware is used to construct networks, can you match the description to the hardware

• Stores the addresses of computers on the network and transfers data between devices.

• Copies all packets of data to all devices on the network.

• Analyses each packet of data and sends it to the computer it was intended for.

• Joins together two networks that use different base protocols, e.g., links a LAN to WAN.

• Joins together two networks that use the same base protocols, e.g., links LAN to LAN.

Router

Hub

Switch

Gateway

Bridge

• Router

• Hub

• Switch

• Gateway

• Bridge

Multiple Choice

What best describes a wireless access point?

• A device that boosts the signal of a wired connection.
• A type of router that only works with Ethernet cables.
• A device that allows wireless devices to connect to a wired network.
• A device that connects multiple wired networks together.

In comparison, a hub sends all data as bits to all ports on the hub device - sending all the bits to all devices on that LAN network. But only the device that requires the data will recognize and receive it. Why is this bad for GDPR?

Hubs

The school uses switches to direct data packets to the correct computer, they can do this as they store the devices MAC address. Without this, you would receive other peoples internet requests.

Switch

Review of specialist hardware

A device that allows wireless devices to connect to the network. You might be thinking, why do we need these as we have routes? In a large organisation (like school) as you walk around you will notice WAP which provides a

Wireless Access Point

In you bring the technology from a hub and switch together you get a router. This manages your connection to the wider world, stores the MAC address of all devices on the network and sends the information to the correct device. This is what you have at home.

Routers

Review of specialist hardware

A bridge connect two of the same protocols together. Universities uses bridges as they have one domain with multiple sites which are connected together using bridges.

Bridge

A long time ago, in a galaxy far away this would have been a seperate device in your home to connect to the internet. Now this is part of your router as a gateway connects networks of different base protocols together such as LAN and WAN. What does LAN and WAN mean?

Gateway

Review of specialist hardware

Open Ended

Mr Dawson has recently moved into a very large house, he wants to setup his home network to ensure he gets full coverage across ever square foot of land. What specialist hardware device(s) will he need? How will he connect to the network wirelessly? How will the device(s) be used to ensure no dead zones in the network?

Labelling

Match the protocol to the example use case

Drag labels to their correct position on the image

Short-range wireless technol (Bluetooth)

Cellular network (2G(GSM)/2.5G(GPRS)/3G/

802.11 (Wi-fi)

IEEE 802.3 (Ethernet)

Communication protocols (TCP/IP)

Categorize

Options (16)

Cat5 - 100 Mbps

Cat6 - 1 Gbps

Cat5e - 1 Gbps

Cat6A - 10Gps

Shared bandwidth

Slower speeds

Fibre to the cabinet

Fibre optic > cabinet > copper cable > premises

Higher speeds

Unconstrained

Fibre option > premises

Fibre to the premises

Radio waves

Microwave used to create WLANs

Satellite communication

Infrared for short range data transmission

We have a range of transmission methods, match the types / descriptions to the transmission method.

Wired

FTTC

FTTP

Wireless

They use twisted copper cables to transmit data. There are different standards of CAT cables for different requirements.

Wired

Wireless communication allows the transmission of data over the air. There are different types of transmission for the different requirements and range

Wireless

Fibre to the cabinet. This will provide fibre optic connections to a cabinet. A copper-wired connection is then connected from the cabinet to the premises, which slows down the potential top speed of the connection. The bandwidth is shared by everyone connected to the cabinet.

FTTC

Fibre to the premises – this will provide a fibre connection straight to your home or premises. Therefore, the speed is unconstrained, offering speeds far higher than FTTC.
Why will FTTP give you a higher speeds and bandwidth over FTTC?

FTTP

Open Ended

Congratulations Emily, in your new role as Media Manager you can work from home. Currently Emily has a slow internet connection at home which won't be sufficient for her new role. Compare the different types of internet connections (wireless / copper / FTTC / FTTP) she could have to her home and identify the best option for her.

Categorize

Options (20)

Digitise access to information

Email

Web browser

Search

started over 20 years ago

Digitise business process

e-commerce

Digital supply chain

Collaboration

started in the late 1990s

Digitise interactions (business and social)

social

mobility

cloud

video

started in the early 2000s

Digitise the world, connecting

People

Process

Data / Things

Here are the four phases in the evolution of the internet. Match the following options to the correct phase.

Phase 1 - Connectivity

Phase 2 - Networked economy

Phase 3 - Collaborative experiences

Phase 4 - Internet of Everything (IoE)

Interactions within the IoE

These are the three main types of interactions with IoE

1. People to People (P2P)

2. Machine to People (M2P)

3. Machine to Machine (M2M)

Machine to Machine (M2M)

Machine-to-machine (M2M) connections occur when data is transferred from one machine or 'thing' to another over a network. Machines include sensors, robots, computers, and mobile devices. These M2M connections are often called the internet of things.

An example of M2M is a connected automobile that is signaling that a driver is almost home, which prompts the home network to adjust the home temperature and lighting.

Machine-to-people (M2P) connections occur when information is transferred between a machine (such as a computer, mobile device, or digital sign) and a person, as shown in Figure 20. Whether a person gets information from a database, or conducts a complex analysis, this is an M2P connection. These M2P connections facilitate the movement, manipulation, and reporting of data from machines to help people make informed judgments. The actions that people take based on their informed judgments complete an IoE feedback loop.

Machine to People (M2P)

People to People (P2P)

People-to-People (P2P) connections occur when information is transferred from one person to another. Increasingly, P2P connections happen through video, mobile devices, and social networks. These P2P connections are often called Collaboration.

Categorize

Options (16)

Store associate mobile devices

Social Media

On-demand expert advice

Collaborative product development

Environmentally hardened mobile video device

Business-to-business (B2B) e-commerce site

Remote Expertise Collaborative Product

Development Mobile collaboration on factory floor

Telework

BYOD

Distance learning

Employee productivity

Video cameras

Social media

TelePresence as a service

Smart health

People to people covering connections and impact (This covers some knowledge of the P2P, further revision is needed)

Retail

Manufacturing

Public sector

Service provider

Categorize

Options (16)

Connected shopping carts

Kiosk

Optimised retail operations

Personalised content

Fleet/logistics systems

Distribution locations

Real-time supply chain

IT and physical security

Disaster response

Smart parking

Increased revenue/compliance

Smart public safety fleets

Automated customer notifications

Connected life

Personalised traffic report

Home security energy control

Machine to People covering connections and impact (This covers some knowledge of the M2P, further revision is needed)

Retail

Manufacturing

Public Sector

Service Provider

Categorize

Options (16)

Parking-space sensors

Mobile payments

Automated ordering process

Energy optimisation

Sensors (vibration, HVAC, lighting)

Process operation controls

Remote asset monitoring

Flexible production

Smart payments

Smart grid

Improved citizen/employee/student experience

New revenue streams

Car sensors

RFID

Smart commerce

Targeted advertising

Machine to Machine covering connections and impact (This covers some knowledge of the M2M, further revision is needed)

Retail

Manufacturing

Public Sector

Service Provider

There are four pillars of IoE. Identify each on the following slides