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Kevin Wieczorkiewicz IT BTEC Englisch 154 Karten

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  1. 1communicationyou can use services like email and messaging applications to communicate with others around the world.
  2. 2real time servicesan example of a real time service would be an electrical bus stop that changes the bus time every second to make it real time.
  3. 3commerceonline shopping like amazon and ebay that let you buy things around the world using internet
  4. 4governmentto pay personal taxes online for example banks like lloyds
  5. 5educationgoogle has many education services such as meet to video call and classroom to let the teacher give students homework
  6. 6entertainmentthis could range to social media platforms like instagram to youtube where you watch videos
  7. 7businesscompanies using websites to advertise themselves while efficiently saving money
  8. 8download servicesan example of download services would be steam where you can get games online or the nintendo eshop.
  9. 9VLEalso known as virtual learning environment is where you can learn with other people around the world using the internet for example google classroom.
  10. 10pay per clickbig companies use this in order to get money every time a user clicks the link in the advertisement
  11. 114 types of adverts link, banner, pop up, emailLinks are for you to click on if you are interested
    Banners usually have distracting and flash animation to catch your attention
    Pop ups are annoying as they open a new tab on your browser
    Email spam advertisements are bad as they have your email address and can practically do anything they want with it
  12. 12why companies advertise onlinecompanies advertise online as it is easier and more efficient as people use social media a lot more often
  13. 13how online ads can be annoyingonline ads can be annoying as they pop up at random times when they are unwanted and make you wait a bit to skip or close them
  14. 14file compressionmaking the file size smaller by compressing it and changing the file type
  15. 15indexAn index is a method of sorting data by creating keywords or a listing of the data
  16. 16algorythman algorithm is a set of commands made to start something
  17. 17benefits of compressionthe benefits of compression are that it makes the file more compact and make them take up less space in your storage
  18. 18advantage of online softwareit is good as if something wrong happens to the hardware then everything is saved online
  19. 19disadvantage of online softwareyou have to wait in order to let things download
  20. 20advantage of standalone softwareyou can store it in physical form
  21. 21disadvantage of standalone softwareif anything breaks then it all gets deleted and you cant restore it
  22. 22backupto save something to the online cloud
  23. 23restoreto take something from the cloud back to the hardware
  24. 24advantages of collab workits an easy way of sharing work with people even if they arent in your area
  25. 25importance of version controlit can be used to tell what version of a document is the newest or most recent
  26. 26levels of accessits used to block certain users from viewing things they should not see online
  27. 27file permissionsettings made to control what some users can do to a file, for example edit or write and delete
  28. 28online communitiessuch as facebook, where a group of people form a community
  29. 29network of friendswhere you and your friend are connected through a network
  30. 30virtual worldeverything to do with digital spaces and software
  31. 31bloga document made by a person usually in the form of a diary describing peoples life
  32. 32microbloga small version of the blog
  33. 33chatroomalso known as a group chat, where multiple people can send messages in the same space
  34. 34wikia website used to view information, it can be edited if you are a member but its moderated so you could be banned for misuse
  35. 35podcastan audio or video talking about a hobby like topic, usually for entertainment purposes
  36. 36chata place where you and a friend can exchange messages online or with data
  37. 37what is a netiquettea netiquette is a set of rules you need to follow online, mostly used to prevent bullying on social media or hackers in videogames
  38. 38profileapersonal information you have linked to an account on social media
  39. 39avatara personalised character used for social media, can sometimes be your face or not
  40. 40what is a voipa voip is an online service used for video conferencing such as skype
  41. 41advantagesan advantage of it is that you can go on video call where ever you are
  42. 42disadvantagea disadvantage is that you need good wifi or it ends up cutting off the sound and lagging
  43. 43equipment requiredto do this you will need at least one form of camera such as the one bult into your phone plus a speaker, those make audio and video to see and hear you.
  44. 44ubiquitous computingwhere processors are built inside everyday objects like clothes or vehicles
  45. 45RFID chipsa way of embeding things to everyday objects for many uses such as letting cats go to cat flaps or shopping sensors
  46. 46cloud computingthe cloud is a place where all data online can save so if a hardware breaks then all data is still safe with your account
  47. 47benefits of cloud computingeverything can be saved so you are guaranteed to be safe
  48. 48drawbacks of cloud computingyou always need an internet connection to access these things so if the net is down all your data is unacessable
  49. 49Network InfrastructureNetwork Infrastructure
  50. 50Serverruns special software to serve other computers like file, web and email
  51. 51Clienta device that uses the service provided by a server like a computer
  52. 52Routerdevice that directs data through a network, they are smart and find the fastest route to improve the experience
  53. 53Backbonethe large cable usually fibre optic that connects many devices to the core of the internet
  54. 54ISPISP
  55. 55PoPa point of presence is an access point to the internet
  56. 56NAPa network access point is where different networks interconnect
  57. 57dial up connectionsthe cheapest way to acces the internet. it uses telephone lines therefore it is really slow and can have errors often
  58. 58broadbandit is the fastest internet possible as it uses physical wires. however due to those wires you can only use it with a personal computer
  59. 59wirelessit is the easiest way to access the internet as you can use it anywhere however it can be interrupted with any other signals making it slower than broadband
  60. 60bandwidth speedbandwidth speed
  61. 61HTTPhypertext transfer protocol handles what we do on the web and requests to load pages from a server
  62. 62HTTPSsame as http however the s stands for secure meaning its less likely to get hacked or stolen data
  63. 63FTPfile transfer protocol old protocol used to upload files from a server
  64. 64TCPtransmission control protocol its responsible for breaking data into packets
  65. 65IPinternet protocol used for handling the packets of data and sending them over the net
  66. 66web page layoutweb page layout
  67. 67hyperlinkthey connect web pages together, when you click on it you get redirected to another page
  68. 68web serverswhere websites are stored, the page gets downloaded to you pc temporeraly when you open one
  69. 69browserapps allowing users to enter a url and view a web page, the browsers uses html code to display the page
  70. 70URLURL
  71. 71URLsplit in to 3 parts. the protocol where it uses a command to load the page. a domain where and what page it is to load. a path showing what part of the page you are on
  72. 72search enginethe software used to search the web
  73. 73store and forwardinformation is sent to a station where it is kept and sent at a later time to the it's destination or to another station
  74. 74address book/ contact groupa book full of peoples numbers and emails
  75. 75CCcarbon copy, a copy of the work anyone knows who has access to
  76. 76BCCblind carbon copy, a copy of the work nobody knows who has acess to
  77. 77benefits of using an emailit is a fast and accessible way to send people messages immages or videos
  78. 78drawbacks of using emailif the other person doesn't have an email you cant send it to them
  79. 79SMTPsimple mail transfer protocol. if something doesnt send it will keep sending it until it sends
  80. 80IMAPinternet message access protocol lets you access your email on a server
  81. 81POP3post office protocol 3 is where you download emails from the server then emails could be deleted
  82. 82webmailwhere all your messages stay on a server as they are backed up
  83. 83emails clientemails downloaded to client machine
  84. 84Data packet exchange diagramData packet exchange diagram
  85. 85packet switchingthe process of data being broken down into small packets before being sent through a network
  86. 86advantages of packet switchingits a fast and convenient way of transferring data
  87. 87disadvantages of packet switchingthe speed of it depends on the internet connection therefore if your internet is bad then it will be slow
  88. 88codecsa codec is a program that compresses data to enable faster transmission and decompresses received data
  89. 89simplexsignals go in one direction eg. tv and remote
  90. 90full duplexsignals go both directions eg. mobile phone
  91. 91half duplexsignals go both directions but not simultaneously eg. walkie talkies
  92. 92serial and parallel transmitionin serial, bits of data are transferred one at a time but in parallel, bits are transferred simultaneously
  93. 93benefit and limitation of serialits good over large distances however its slower
  94. 94benefits and limitations of parallelyou can only use it over short distances however its faster
  95. 95utpunshielded twisted pair uses copper wires that are twisted together
  96. 96stpshielded twisted pair also uses copper wires however they are shielded with tinfoil to stop signals from other devices
  97. 97advantages of utp/stpcheaper than other methods and reliable. has protective foil to cancel unwanted signals
  98. 98disadvantages of utp/stpits slow and low capacity as well as being used only for short distances
  99. 99coaxial cablea solid copper wire with thick multi layer shielding used mostly for TVs
  100. 100benefits of coaxit is very reliable and secure making it the best for many uses
  101. 101drawbacks of coaxits used over short distances and its low capacity
  102. 102fibre opticstrands of glass carrying data used for the backbone of the network
  103. 103advantages of fibreits fast and can be used over longer distances with no interference
  104. 104disadvantages of fibreit is really expensive
  105. 105infareda light shot into a receiver that sends signals letting the receiver know what to do
    its reliable however if something is in the way then the signal wont work
  106. 106microwaveeg. bluetooth. a wave signal used for short distances
    it can be used wherever and physical objects dont stop the signal due to having receivers but it can be stopped by other devices
  107. 107satelliteuses satellites in space to relay data between points on earth eg. gps
  108. 108advantagesgood for very long distances
  109. 109disadvantagesreally expensive however the prices drop annually
  110. 110network interface cardwhat allows all the computers to become part of the network
  111. 111network access pointa way to access the internet. can be physical or digital
  112. 112client processinguses the clients computer to process web page data
  113. 113server processinguses web server to process web page data
  114. 114examplesinteractive calendar, widget, web form
  115. 115advantagesthe speed for client and the efficiency for server
  116. 116disadvantagesrelies on computer speed for client and security for server
  117. 117databasea structured collection of data
  118. 118tablewhere a set of data is stored
  119. 119fielda column where data is stored
  120. 120recordone row that stores data
  121. 121primary keya special field with a unique identifier
  122. 122foreign keyits use is to link to the suppliers table
  123. 123relationshipdatabases need more than one table to store all the data
  124. 124data types and usestext, number, date/time, boolean
  125. 125online and local databaselocal is a database inside a network and online is a database that can be accessed anywhere around the world
  126. 126one feature of online/local databaseshops like argos and search engines
  127. 127BDMSsoftware that allows you to make and use your own database
  128. 128SQLthe language used by BDMS to actually make and search databases
  129. 129presence checkensures data is entered into a field and not left blank
  130. 130range checkused to ensure data falls between a set range
  131. 131format checkused to ensure data is in the correct format
  132. 132check digitused to ensure the data received is the same as the data transmitted
  133. 133—bold text
  134. 134—.
  135. 135—start paragraph
  136. 136—add images
  137. 137—.
  138. 138—start list
  139. 139—.
  140. 140—start hypertext markup language
  141. 141—starts the body of the
  142. 142—start heading 1
  143. 143threats to datathreats to data
  144. 144how to protect datahow to protect data
  145. 145opportunistmake sure you are logged off and have secured passwords
  146. 146virustry deleting the virus or not downloading it in the first place and if its bad factory reset it with backups
  147. 147malwaremalicious software can be in an advert so be cautious when clicking on it
  148. 148phishingdo not press on links that are too good to be true
  149. 149accidental damagebackups on data
  150. 150hackersencryption to add more levels of security. password control
  151. 151data protection acta law that protects your data from other users unless permitted by primary user
  152. 152computer misuse acta law that makes using other peoples accounts without their permission illegal
  153. 153copyright, design acta law where if you copyright something it is yours and others can not use it without permission
  154. 154freedom of information actan act where you can have freedom to your own information and bae able to not worry about people taking it over

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BTEC IT Karteikarten am flash cards, erstellt von Kevin Wieczorkiewicz am 16/11/2021.
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