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Flashcards

Unit 1 (BTEC IT) - Learning Aim A

Ema Begum IT BTEC English 64 cards

Cards in this deck (64)

  1. 1Online servicesOnline services are facilities that users can access over the internet and which allow data exchange and interaction.
  2. 2CommunicationThis service is about moving data between users. Examples include:
    - Email,
    - Instant messaging,
    - Newsgroups,
    - Social Networking,
    - Online Conferencing,
    - Blogs
  3. 3Real-time InformationThis service is used to get up-to-date information. Examples include:
    - Train timetables,
    - News services,
    - Traffic reports,
    - Flight status updates,
    - Weather
  4. 4CommerceThis service involves business buying, selling and money services such as banking. Examples include:
    - Internet banking,
    - Online auction websites (eg eBay),
    - Retail sales (eg Tesco.com),
    - Publishing (eg Kindle on Amazon)
  5. 5GovernmentThis service involves public services, such as government bodies, like the DVLA and local council. Examples include:
    - Online tax returns,
    - e-voting,
    - Applications for service or grants,
    - Revenue collection,
    - Renewing car tax
  6. 6EducationThis service involves learning and training.
    Examples include:
    - Online learning for learners
    (eg BBC Bitesize),
    - Online training
  7. 7EntertainmentThis service involves using the internet for leisure and fun. Examples include:
    - Online gaming, including multiplayer on consoles and portable devices,
    - Radio players and music websites,
    - Catch-up TV,
    - On-demand films
  8. 8Virtual learning environment (VLE) (eg Moodle, Blackboard)This service is a virtual classroom that allows teachers and learners to communicate with each other.
    Examples include:
    - Google classroom
  9. 9BusinessThis service involves businesses using websites to make their business more efficient or to save money.
    Examples include:
    - Video conferencing,
    - Collaborative working,
    - Business networks
  10. 10Online advertisingOnline advertising is designed to capture and hold the attention of a user to promote a product or service. There are several methods which can be used.
  11. 11Pay-per-click advertisingA 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. This is known as an affiliate model.
  12. 12Banner/Pop-up AdvertsBanner/Pop-up adverts can be effective in catching users' attention but can also be annoying.
  13. 13Online documents - File compressionFile compression makes files smaller so that they take up less space in computer memory.
  14. 14How are files compressed?Compression is also known as 'zipping' and is done using an algorithm. One file can be compressed or many files can be compressed into one. The file extension for these include .zip,rar, .7z and.dmg. Each file extension is created using a different compression algorithm. Therefore, the users compressing and expanding the file needs to use the same program.
  15. 15IndexWhen files are compressed, the last item in the compressed file is an INDEX. It contains the information needed to expand the files to their original size.
  16. 16How is an algorithm and index used in file compression?An algorithm is used in compression to make the file smaller. An index is included when the algorithm is used and is part of the compressed file. When the file is expanded, the index holds the information to recreate the original file.
  17. 17Advantages of File Compression- Saving memory space on computers eg web server.
    - Files will upload and download more quickly.
    - Files will better fit restrictions, such as the attachment limit on email.
  18. 18Online Software and BackupsTraditional software is installed onto a computer whereas online software is accessed over the internet through a web browser.
  19. 19Advantages of Standalone Software- 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 a poor internet connection.
  20. 20Online SoftwareOnline software is accessed through a web browser and is available anywhere that has an internet connection.
  21. 21Advantages of Online Software- Updated automatically (on the server, rather than on the client).
    - Backed up automatically.
    - Can be used on different devices (computer, tablet, smartphone, etc.)
    - Can be used on different operating systems (Windows, Mac, etc.)
  22. 22Online BackupsBacking up files online means saving them to an external server.
  23. 23Advantages of Online Backups- If the user's 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.
    - If files become corrupt you can just restore it because of the backup.
    - If files are accidentally deleted you can easily restore the files.
  24. 24Backup and RestoreIf you are backing up a file it is important to make sure that can restore these files if the original copy is deleted or corrupted. When you are answering questions about backups, make sure you write about making a second copy and restoring it.
  25. 25Collaborative working onlineCollaborative working means people working together. Technology allows collaborative working to happen over the Internet. Users can work on the same project or even the same document - and they could be in different countries.
  26. 26Advantages of collaborative working- Users do not need to travel to work together, saving money, time and the environment.
    - Users can work on the same document instead of having different versions of the same file.
  27. 27Version ControlThis is important so that a user knows which is the most up-to-date document. This is especially important for collaborative working. Version control can be managed by:
    - locking the file and making it 'read only' while one user is viewing or editing it.
    - the software allocating version numbers and dates of editing.
  28. 28Levels of AccessDifferent users can have different levels of access. This could be set with a username and password. For example, at school or college, you will have different access to your teachers on your school network and this is set when you log on.
  29. 29File PermissionsFile permissions give users a level of access to specific files.
  30. 30Read OnlyCan look at a document but make no changes.
  31. 31Read/WriteCan look at a document and make changes.
  32. 32Full controlCan do anything to a document, including deleting it.
  33. 33Online CommunicationCommunicating online means transferring data from one user to another or many. Often this is done through specialist software or websites, including social media. Communicating online includes instant messaging. Online communication requires rules and involves users in developing a profile for their online presence.
  34. 34Publishing InformationInformation can be published online through social media.
  35. 35BlogA weblog - an online journal or diary.
  36. 36MicrobloggingA website or app where short messages are exchanged (eg Twitter).
  37. 37WikiA website where anyone can add edit information.
  38. 38PodcastAudio or video files which are usually published in episodes.
  39. 39ChatroomA place on the web where users can communicate, usually through typed words (users online at the same time).
  40. 40ChatAn exchange of messages, often typed, between users at the same time
    (in real-time).
  41. 41Social NetworkingSocial networking sites can connect people with similar interests. Those involved can be in different places.
  42. 42Online CommunityAn online community is a virtual community (a group of people) which only exists online. It is also known as a network of friends.
  43. 43Online CommunitiesThese often exist in a virtual world. This is an unreal world which is created by the computer and does not exist in the real world. Some communities need users to be involved at the same time, such as some online gaming, whereas others can have users interacting at different times, such as a forum or a Virtual Learning Environment (VLE).
  44. 44Advantages of VLE (for learners)Learners can submit through a VLE as a saved digital copy and it can be scanned through plagiarism software and then backed up. They can also create wikis that can be shared with their peers and support learning in their classroom.
  45. 45Advantages of VLE (for teachers)Teachers can share resources on VLE, which means learners and other teachers can access them, such as worksheets, assignment briefs and support materials. They can also access them from school or at home.
  46. 46NetiquetteNetiquette is the set of rules to which users should behave when they are online.
    It is short for net etiquette. This would also include not using capitals (as it means shouting), appreciating privacy and not making unkind comments.
  47. 47EmoticonsEmoticons, also known as smilies, are images that represent emotions.
  48. 48ProfileA profile is the online presence of a user in a particular system, for example on a game system or social media website. The profile will include a name (which may be a pseudonym) and details about the person. It is up to the user how much they reveal and whether they are truthful or not.
  49. 49AvatarAn avatar is a picture which represents a person, usually as part of a profile.
  50. 50Instant MessagingInstant messaging is a way to exchange messages instantly between two or more users. Usually, online software is used to make connections between the users and provide an environment where they can chat, share files such as images, and use emoticons.
  51. 51Client and Server Roles in Instant MessagingThe chat program is processed on the user's computer (the client). Each person chatting holds a local copy on their own computer. Other processing may be carried out on the server, for example when users are logged in.
  52. 52Advantages of Social Networking- Able to communicate in real-time.
    - Cheap to use.
    - Able to do video conferencing/sharing/gaming.
  53. 53Disadvantages of Social Networking- Viruses could spread.
    - Need internet access.
    - May lead to misunderstanding.
  54. 54Voice Over Internet Protocol (VoIP)VoIP is a method of real-time communication over the Internet, for example, Skype. The data transmitted is audio and video as two computers are connected through their unique IP addresses.
  55. 55Advantages of VoIP- Able to contact someone anywhere in the world where there is an internet connection.
    - Uses internet-only so no additional costs (unlike phone calls).
    - Reduces travel costs, travel time etc.
  56. 56Disadvantages of VoIP- Relies on Internet connection so it can be a slow connection or it can cut out.
    - As the audio is being converted to digital, transmitted over the internet and converted back again, the voice quality can be affected.
    - Data exchanged over the internet is at risk of security threat such as hackers.
  57. 57Cloud ComputingCloud computing is where data is saved on external servers of the user's hard drive. The EXTERNAL SERVERS are called HOSTS and are owned by a HOSTING COMPANY. Some well-known examples are Dropbox, Microsoft-One D and Google Cloud. Cloud users can access software, data and storage provided by their hosting company.
    Users usually access the cloud through a web browser or mobile app - they do not directly access the servers.
  58. 58Benefits of Cloud Storage- You only pay for the storage that you use. You do not have to provide and maintain the harware.
    - Data can be available anywhere in the world where there is an internet connection.
  59. 59Non Benefits of Cloud Storage- 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 slower than using the installed software.
  60. 60How is data stored in installed software?In installed software, data is saved to the computer's hard drive.
  61. 61Ubiquitous ComputingUbiquitous means 'existing everywhere'. Ubiquitous computing is where processors are embedded in everyday objects.
  62. 62Radio Frequency Identification Chips (RFID)RFIP chips are a way to embed processors into everyday objects. They can be used to identify and track an object. It is similar to a bar code, although it does not need to be scanned.
  63. 63The Internet of ObjectsThe internet of objects is a concept which looks at the internet as 'thing' rather than data. As more objects have processors built-in, this creates a network of physical items. This includes devices, products and even people themselves.
  64. 64Use and Benefit of an RFID Chip- RFID chips are used for security. There will be scanners near each exit so if a person steals something and tries to take it through an exit without paying the alarms will sound.
    - The benefits of RFID are that items do not need to be scanned like a bar code, they can be scanned just by walking through the sensors.

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BTEC IT Flashcards on Unit 1 (BTEC IT) - Learning Aim A, created by Ema Begum on 10/12/2020.
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Ema Begum · Dec 2020
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Dec 10, 2020
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