Learning Aim A Flashcards
Bluetooth
A short range technology (10 metres or less) that can connect multiple devices. e.g. mobile phones & speakers
Ad hoc Network
A wireless network that does not rely on fixed hardware such as routers in wired networks.
Personal Area Network
Used for data communication between devices. Connects electronic devices close to the user, such as a wireless mouse, a keyboard, and a computer.
Tethering
Where a smartphone acts as an access point, allowing other devices to connect to it to share its mobile broadband connection to the internet.
Personal hotspot
Using a phone’s internet connectivity to access the internet from the laptop.
PIN
Acronym meeting Personal Identification Number. Form of identification used for ATMs.
Encrypted
Information or data has been converted to a type of code that cannot be understood without a translation key.
USB
Universal Serial Bus.
A standard for connection sockets on computers, connecting devices such as mice, keyboards, printers, external hard drives, etc.
Insecure
A connection where data maybe intercepted by other users.
Streaming
Data is sent to your device in a continuous flow when connected to the internet.
Traditional Network
Traditional networks are made up of several PCs, routers and other devices that are connected using cables and wires.
Examples of ad hoc networks:
PAN
Open Wi-Fi
Tethering or Personal Hotspot
Benefits of ad hoc networks:
They are scalable
They are flexible
They require limited setup.
Drawbacks of ad hoc networks:
They are less secure.
They have a reduced speed.
The network can become unorganised.
Issues affecting availability:
Rural vs city locations
Developed vs developing countries
Available infrastructure
Mobile network coverage
Blackspots
Server
A computer that delivers data between machines that are connected to a local network.
Benefits of cloud storage:
1) You can access your data from any device that has an internet connection and a web browser.
2) Scalable – You can purchase more storage space easily.
3) The data and its security is managedby the provider.
Synchronising
Is when files held on two devices are updated to make sure that both have the same content.
Downloading
A file or document can be used when you are not connected to the internet.
Uploading
A file or documents can be used by you or other with access when connected to the internet.
When is cloud storage available?
- Only when there’s an internet connection.
- If the connection is broken access will be terminated.
- The speed of the connection will impact file upload speed and download stream speed.
- If there is a suitable connection, data and files in the cloud can be accessed 24/7
Drawbacks of cloud storage:
1) If there is no connection you can not access your data. Slow connection also will hinder your experience.
2) Some providers offer limited storagespace for free, but additional space can be expensive
3) You have no control where or how your data is stored. You must trust the provider to keep your data confidential.
What can be stored in the cloud?
- Images/Videos
- Emails
- Contact info
- App Back Ups
What is cloud storage?
Files and folders are stored remotely rather than on a PC or device.
The files are stored on servers so they can be accessed via the internet.
When you want to access the media, the data is downloaded or streamed to the device you wish to use it on.
It remains in the file in the cloud unless you delete it.
Data on your device can also be uploaded to the cloud.
Benefits of online applications:
- No installation
- Cost effective
- No need for updates
- Accessible from anywhere
- Direct access
Drawbacks of online applications:
Must have a reliable internetconnection.
What is file sharing?
Two or more people can work on thesame document at the same time.
Benefits of collaboration tools:
1) Add comments to documents
2) Track changes made to the document
3) Use services such as live editing
4) Use chat facilities to discuss proposedchanges to documents, plans ordrawings before these changes aremade in the file.
Stakeholders
These are people with a financialinterest or investment In a business ororganisation
Downtime
A period of time when a computerand it’s services are unavailable.
