Unit 1: Learning Aim A Flashcards
What are the nine online services?
Communication Real-time information Commerce Government Education Entertainment Virtual learning environment Business Download services
What is the communication online service about?
Moving data between users
What are 6 examples of the communication service?
Email Instant messaging Newsgroups Social networking (e.g. Facebook) Online conferencing Blogs
What is real-time information online service used for?
This service is used to get up-to-date information.
What are 5 examples of real-time info service?
Train timetables News services Traffic reports Flight status updates Weather
What does the commerce online service involve?
business – buying, selling and money services (e.g banks)
What 4 examples are commerce service?
Internet banking
Online auction websites (e.g. eBay)
Retail sales (e.g. HMV, Tesco.com)
Publishing (e.g. Kindle on Amazon)
What does government involve and like what?
Public services,such as government bodies, like the DVLA and local council.
What are 5 examples of government service?
Online tax returns E-voting Applications for services or grants Revenue collection Renewing car tax
What does the education service involve?
Learning and training.
What 2 examples are education service?
Online learning for learners (e.g. BBC Bitesize)
Online training
What does the entertainment service involve?
Using the internet for leisure and fun
What is the Virtual learning environment service?
A virtual classroom that allows teachers and learners to communicate with each other.
Give the 2 examples of VLE service.
Moodle
Blackboard
What does the business service involve?
Businesses using websites to make their business more efficient or to save money.
Give an example of business service.
Video conferencing (e.g. Skype)
What doe the download service involve?
Files which can be downloaded and saved onto the user’s computer.
Are the download services illegal or legal?
These are LEGAL services
Give 3 examples of download services
Downloads of Music and film
‘’ ‘’ Software
‘’ ‘’ Upgrades
What is online advertising designed to do?
It is designed to capture and hold the attention of a user to promote a product or service.
Describe the method: Pay-per-click advertising (3)
- A web page will host an advert for another organisation.
- If a user clicks on the advert, they are directed to the advertiser’s website.
- The host will receive payment for each user who clicks on the advert.
The Pay-per-click advertising is known as what model?
An affiliate model
What does file compression do to files and why?
File compression makes files SMALLER so that they take up less space in computer memory
What are the advantages of file compression? (3)
- Saving memory space on computers e.g web server
- Files will upload and download more quickly
- Files will better fit restrictions, such as the attachment limit on email
What is compression also known as?
‘Zipping’
Why is an algorithm needed in file compression?
It is used in compression to make the file smaller.
What are five examples of file extensions? (4)
1) .zip
2) .rar
3) .7z
4) .dmg
Each file extension is created using (the same/different) compression algorithm
Different
The user expanding and compressing the file must use (the same/ different) program(s)
The same
What is an INDEX?
When files are compressed, it is the last item to be compressed
What information does the INDEX contain?
It contains the information needed to expand the files to their original size
What is the difference between traditional software and online software?
Traditional software is installed on a computer whereas online software is accessed over the internet through a web browser and is available anywhere with an internet connection
What are the advantages of standalone software? (2)
- As it is installed onto the hard drive, it can be used when there is no internet access.
- It runs faster than online software with poor internet connection.
What are the advantages of online software? (4)
- Updated automatically (on the server rather than on the client )
- Backed up automatically
- Can be used on different devices ( computers, tablet, smartphone,etc.)
- Can be used on different operating systems (Windows , Mac, etc.)
What does it mean to back up files online?
It means to save files to external servers
What are the advantages of online backups ? (2)
- If the computer fails, the files are saved on servers elsewhere and would still be safe
- Cloud storage is often also backed up so there is double security
What is it important to do when backing up files?
It is important to make sure that you CAN restore the files if the original copy is deleted or corrupted.
What does collaborative working mean?
It means people working together
What allows collaborative working to happen over the internet?
Technology
What are the advantages to collaborative working?
- Users can work on the same document instead of having different versions of the same file
- Users do not need to work together, saving money, time and the environment
Why is version control important?
It is important so that a user knows which is the most up-to-date document
What is version control important for?
Collaborative working
How can version control be managed? (2)
- Locking the file and making it ‘read only’ while one user is viewing and editing it
- The software allocating version numbers and dates of editing
Levels of access
Something
What do file permissions do?
They give users a level of access to specific files
What are 3 types of file permissions?
1) Read only
2) Read/Write
3) Full control
What does ‘Read only’ mean?
Can look at a document but make no changes
What does ‘Read/Write’ mean?
Can look at a document and makes changes
What does ‘Full control’ mean?
Can do anything to a document, including deleting it
What is blog?
A web log- an online journal or diary
What is microblogging?
A website or app where short messages are exchanged (e.g twitter)
What is wiki?
A website where anyone can add and edit information
What is Podcast?
Audio or video files which are usually published in episodes
What is Chatroom?
A place on the web where users can communicate, usually through typed words (users are online at the same time)
What is Chat?
An exchange of messages, often typed, between users at the same time (real time)
What do Social networking sites do?
It can connect people with similar interests
Those involved can be in different places.
What is an online community?
A virtual community (groups of people) which only exist online
What is the online community also known as?
Network of friends
What is a virtual world?
An unreal world which is created by the computer and does not exist in the real world.
What communities need users to be involved at the same time?
Online gaming
What communities can have users interacting at different times?
A forum or a Virtual Learning Environment (VLE)
What is netiquette?
The set rules to which users confirm with online
What is netiquette short for?
Net Etiquette
Give 3 examples of netiquette.
Not using capitals (It would mean shouting)
Appreciating privacy
Not making unkind comments
What are emoticons?
They are images that represent emotions.
What are emoticons also known as?
Smilies
What is a profile?
The online presence of a user in a particular system.
Where would you find profiles? (2)
Games system
Social media website
What would the profile have? Important to know(2+1)
A name (most likely a pseudonym)
Details about the person
Important to know: It is up to the user how much they reveal
and whether they are truthful or not
What is an avatar?
A picture representing a person usually as part of a profile
What is instant messaging
A way to exchange messages instantly between two or more users.
What is used for instant messaging?
Online software MORE TEACHER??
Client ……. instant messagng
TEACHER
What is Voice over Internet Control (VoIP)? {Additional info}
A method of real-time communication over the internet E.g Skype
-The data transmitted is audio and video as two computers are connected through their unique IP addresses
What are the advantages of VoIP? 3
- Able to contact someone anywhere in the world where there is an internet connection
- Uses the internet-only so no additional cost (unlike phone calls)
- Reduces travel costs, travel time, etc.
What are the disadvantages of VoIP? 3
- Relies on the internet connection so it can be a slow connection or it can cut out
- As the audio is being converted to digital, trasmitted over the internet and converted back again, the voice quality will be affected
- Data exchanged over the internet is at risk of security threats such as hackers
What is Cloud computing?
Its where data is saved on external servers instead of the user’s hard drive
What are the external servers called?
Hosts
What are the hosts owned by?
Hosting Company
Give 3 examples of hosting company.
Dropbox
Microsoft-One D
Google Cloud
What can Cloud users access provided by the hosting company?
Data and storage
What are the benefits of the cloud storage?
{COST & AVAILABILITY}
- You only pay for the storage that you use. You do not have to provide and maintain the hardware
- Data can be available anywhere in the world where there is an internet connection
What are the drawbacks of cloud storage?
{ 4 - Reliability, security, software and potential low performance}
- It depends on how reliable the host is to access your data
- You have no control over the files stored and you have to trust the company to keep them safe.
- The company may not be using the latest, fastest version
- The speed of accessing data might be slwer than installed software
What does ubiquitous mean?
‘existing everywhere’
What is ubiquitous computing?
It is where processors are embedded into everyday objects
Examples of ubiquitous computing being useful in clothing
Processors embedded into running kit to measure distances,heartbeat etc of the wearer.
Examples of ubiquitous computing being useful in people
Pacemakers fitted to regulate heartbeats
Examples of ubiquitous computing being useful in vehicles
built-in GPS/sat nav to direct the driver
Examples of ubiquitous computing being useful in appliances
processors in washing machines to monitor load size, amount of water etc.
Examples of ubiquitous computing being useful in buildings
Processors in fire alarms to detect smoke, set off alarms and contact the fire brigade
What does RFID stand for?
It stands for Radio Frequency IDentification
RFID chips are a way of what?
They are a way to embed processors into everyday objects
What are they used for? What is it like?
They can be used to identify and track an object
A bar code, although it does not need to be scanned
