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Flashcards do conjunto (142)
- 1CommunicationWhere you communicate with others online.
E.g. Snapchat, Discord, Messenger - 2Real Time ServicesOnline services that update themselves regularly.
E.g. Stock Market, News, Flight Tracker, Train Timetables - 3CommerceAn online commerce is when you are able to buy something on the internet.
E.g. Auction, Ebay, Amazon. - 4GovernmentThings that the government can do online.
E.g. Tax returns, Signing benefits, - 5EducationWhere you can educate yourself online.
E.g. BBCBitesize - 6EntertainmentOnline entertainment is when you watch videos on the internet.
E.g. YouTube, Netflix, ITV Hub - 7BusinessWhat you can do for your business online.
E.g. Setting up a business, Arranging meetings, Advertising - 8Download ServicesServices that you are able to download things online.
E.g. Music, Video, Podcast - 9VLE (Virtual Learning Environment)Where you can work from home.
E.g. Drive, Classroom - 10PayPerClick (affiliate model)Payperclick is when a person who owns a company gets paid every time their advert is clicked.
The affiliate model is when other people are able to advertise their own business on someone else's website but the owner of that website gets pay back. - 11Four Types of Online AdvertisingBanners
Pop ups
Hyper links
Emails - 12Why companies advertise onlineSo people can see their advert as many people use the internet.
- 13How online advertising can be annoying (drawbacks)It can disturbs others when they are doing something.
- 14Online CommunitiesA group of people who communicate online about a certain topic.
- 15Network of friendsA network of friends is when you have friends online.
E.g. Snapchat, Instagram, Facebook - 16Virtual WorldThe virtual world is a simulation.
- 17BlogA blog is an online journal.
- 18Micro-blogYour current status on a social media.
E.g,. Twitter - 19ChatroomA chatroom is a place you can go to talk to different people or your friends.
- 20WikiA website where you can get information. People who have a wiki account can edit a wiki.
- 21PodcastA downloadable audio file.
- 22ChatChat is a part of a game or website where you can talk to either employees or other people.
- 23Online SoftwareOnline Software is when you are able to download things straight from your computer.
- 24Advantages of online softwareSaves automatically, Back up automatically and sometimes free.
- 25Disadvantages of online softwareCan get hacked with personal information leaked.
- 26Standalone SoftwareWhen you buy the software on a disc and download it onto your computer.
- 27Advantages of standalone softwareMore safe, quicker to install. Don't have to have internet connection.
- 28Disadvantages of standalone software.Have to keep saving every 10-15 minutes, if you lose power you lose all your work.
- 29Backup and RestoreThis is when you lose and regain it all your work is still there with all the new changes. This is usually on online software.
- 30File CompressionIs when you want to shrink a file to make more storage space.
- 31The role of IndexIs to make the file go back to its original size.
- 32AlgorithmAlgorithm is a sequence of numbers followed by some calculations.
- 33The benefits of file compression.More storage space, easier to upload and download.
- 34Advantages of Collaborative workingMultiple people working on it at the same time which means that the work can get completed quicker. Can get feedback on your work to make improvements.
- 35The importance of version control and how it can be used.It is used to make improvements. It is important because you can go back to the older or new version to see what you have done.
- 36Levels of AccessThe level of access are:
View only
Edit
Comment - 37File PermissionThe permissions you are given when you are able to look at a file.
- 38ServerA server is where the data is stored.
- 39ClientThe client is the device you use the internet on. E.g. Computer.
- 40RouterA router is a device that connects to the web.
- 41BackboneThe backbone is a big fiber optic cable that connects a number of devices in the core to the internet.
- 42ISP (Internet Service Provider)A company that you pay a monthly subscription for the internet.
The role of a ISP is to provide access to the web, give you VOIP and Email - 43ISP Network Diagram
- 44Connecting to the Internet
- 45Point of PresenceCables that are connected from one country from another for interconnection.
- 46Network Access PointWhere you are able to connect to your internet service provider from a different location.
- 47Advantages of Dial-up connectionUses phone lines,
Cheaper than broadband
You can use it without broadband. - 48Disadvantages of Dial-upNot as fast as broadband,
Poor connection,
Can't use phone whilst using the internet. - 49Advantages of BroadbandFast connection,
Can use phone without dial-up,
Still use phone lines - 50Disadvantages of BroadbandPoor connection in certain areas for example areas outside the city,
Can be affected by having thick walls,
Bad weather can affect your broadband. - 51Advantages of wirelessDon't need to use a Ethernet cable.
Can walk around with clients instead of getting tangled in wires. - 52BandwidthBandwidth is the time taken to download or upload data.
- 53Disadvantages of wirelessBad weather can affect the connection,
You will get slower connection if you have thick walls in your home,
Can be expensive,
Not available in rural areas. - 54Hypertext Transfer Protocol (Http)Used for loading up pages by requesting data from the provider and sending it to your client.
- 55Hypertext Transfer Protocol Secure (HTTPS)HTTPS is the protection of web pages. often shown as a lock to show a web page is secure.
This is often used on websites such as Amazon and other commerce sites. - 56File Transfer Protocol (FTP)FTP is when it lets you transfer files from the internet.
- 57Transmission Control Protocol (TCP)Transmission control protocol is when it transmits data packets to your client.
- 58Internet Protocol (IP)Internet protocol is when data is sent from one computer to another from the internet.
- 59ProtocolA protocol is something that is done when another thing happens.
- 60HyperlinksHyperlinks are used to take you to a web page or to take you to a different part of the web page.
Hyperlinks can be used in power points, word documents and web pages.
- 61BrowsersBrowsers are computer programs that take you to the web pages you search.
- 62Web ServersWeb servers store the data from the web pages you search.
- 63URL's (Uniform Resource Location)A URL is the web address to the website you have searched for.
There are three parts of URL's and they are Protocol, Domain and Path.
- 64Protocol in URL'sThe protocol in URL's is to show if the website is secure or not.
- 65DomainThe domain is the websites address so it takes you to the correct website.
- 66PathThe path is at the end of the URL which tells you which part of the website you want to go to.
- 67Search Engine Diagram
- 68Client SideThe person using the device to search.
- 69Search EngineA program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.
- 70Server SideThe server side refers to operations that are given by the client.
- 71Spider/Web CrawlerA web crawler is an internet bot that systematically searches the web.
- 72IndexThe index is everything on the database.
- 73DatabaseThe database is where all the data stored.
- 74Sponsored link resultsThis is where adverts are shown on the search page based on the keywords you have used.
- 75AdvertsAdverts are the pop up links that come up on the search page.
- 76PopularityHow many times a web page is visited by clients.
- 77Store and ForwardStore is where you are able to store emails.
Forward is where you can send emails to people. - 78Address book/ContactsThis is where you put different people onto your email so you can send emails to them more quickly.
- 79CC (Carbon Copy)A carbon copy is when people are able to see the other people you have sent an email.
- 80BCC (Blind Carbon Copy)Blind carbon copy is when if you send an email to multiple people the person who sees that email can't see who you also sent the email to.
- 81Benefits of using email.Quicker to send messages,
Can send the same message to multiple people at once. - 82Drawbacks of using email.Some drawbacks are:
Can't access your email without internet connection
You are able to receive spam messages.
If you miss a single character out of a persons email address the message will not send. - 83SMTP (Simple Mail Transfer Protocol)It is a communication protocol for email. This sends emails to the server.
- 84IMAP (Internet Message Access Protocol)Used for webmail. Pulls mail from the server when suggested but saves it to the server.
- 85POP3 (Post Office Protocol 3)Pulls the mail from the server to the client when requested.
- 86WebmailWebmail is mail that uses internet.
- 87Email ClientThe email client is the device used to access your email.
- 88Data Exchange Data Packet Diagram.
- 89Packet SwitchingPacket switching is the process of data being broken into 'packets' before being sent through a network and then reassembled at the other end. This method is used on the internet.
- 90Advantages of packet switchingSends data across a network efficiently.
It means big files which would otherwise clog up the network, can be sent whole. - 91Disadvantages of packet switching.if one or more packets are lost or corrupted during transmission, the whole file will not be received correctly.
- 92What are codecs?A codec is a device or computer program for encoding or decoding a digital data stream or signal.
- 93SimplexSignals go in one direction at a time. e.g Remote control for your TV.
- 94Full DuplexSignals go in both directions at the same time. e.g. Mobile phone.
- 95Half-DuplexSignals go in both directions to monitor and send instructions but do not go at the same time. e.g. Two-way radios, walkies talkies
- 96Serial Transmission ModeBits of data are transferred one at a time over a wire.
Benefit is that it is good over large distances.
The limitation is that it is complex because data has to be broken into individual bits. - 97Parallel Transmission ModeBits of data are transferred simultaneously over a wire - a whole byte can be transferred at the same time.
One benefit is that it is faster because more bits are transferred per second.
The limitation is that shorter distance maximum about 5 meters. - 98UTP (Shielded Twisted Pair)Made up of pairs of copper wires twisted together.
One benefit is that it is cheaper than other methods.
One drawback would be that it is only able to be used in short distances. - 99STP (Shielded Twisted Pair)Shielded cable has a protective layer around the copper wires to protect it from interference.
One benefit is that it is reliable. - 100InfraredAn infrared light is invisible to the eye and it is used to transfer data.
An advantage of infrared is that it is reliable.
The drawbacks are that it is short range, devices must be in line of sight, can suffer from interference.
An example: TV Remote Control. - 101BluetoothBluetooth uses short wavelengths to transmit data. It is invisible to the human eye.
An advantage would be that it is good for longer distances.
A drawback would be that it can suffer from interference from other devices.
Example: connecting a wireless keyboard to a computer. - 102SatellitesA satellites are use in space to relay data between different points Earth.
An advantage of satellites is that it is good for very long distances.
A drawback would be that they are very expensive.
We use satellites for GPS (global position system) devices, TV broadcasting and satellite phone calls. - 103Network Interface CardIt's the hardware for receiving wireless signals. It is built into modern devices e.g phone, tablets.
It connects to the NAP. - 104Network Access PointWhere you are able to get a connection from a different location.
A lot of places have it e.g cafe and libraries. - 105Client side processingClient-side processing is where the interactivity on a web page is downloaded and processed using the client's side.
An example is a rollover image on a web page.
The benefits of client side processing is that it is fast and has good security.
The drawbacks are that it is browser specific and the speed of your computer. - 106Server side processingSever side processing is where the interactivity on a web page is processed on the web server.
An example would be a form completed online which is filled in then submitted to the server where results are processed and stored.
The benefits are that it is efficient and it is browser independent.
The drawbacks are security and server overload. - 107DatabaseA place where your name, date of birth, phone number etc is stored.
- 108TableA table stores about a single item or person.
- 109FieldFields are the columns in the table.
- 110RecordA row about a single person or item in a table is called a record.
E.g. Surname, name, date of birth. - 111Primary KeyUnique piece of data which identifies one record.
E.g. Student ID number. - 112Foreign KeyThe same as the primary key in a different table and creates a relationship. A key field becomes a foreign key when the unique data comes up in a different table.
- 113RelationshipA relationship is where your record is linked with multiple tables. A relationship comes in three different ways:
One-to-many relationship.
One way relationship.
Two way relationship. - 114Types of database and uses.Text: You can use text for any type of characters.
Numeric: This is used for numerical value.
Date/time: This is used for dates and times.
Boolean: This is used for yes/no also known as true/false. - 115Key Field Diagram
- 116Local DatabaseA local database is stored and accessed on its own network. This means the data is more protective as data is not moving across the internet.
A feature of a local database is the people in the network can access it such as a surgery. - 117Online DatabaseAn online database uses the internet to share access to it from locations all around the world. It can be accessed on the move through wireless internet where there is an internet connection.
A feature of this is that your details can be shared to multiple businesses. - 118Database Management Systems (DBMS)This is a software that allows you to create and use your own databases. It creates tables and fields and can sort data.
- 119Structured Query Language (SQL)This is the language that can be used to create databases.
- 120Hypertext markup Language (HTML)The language used to create web pages.
- 121HTML Tags
- 122—Is what the user sees.
- 123Threats to data
- 124How to protect data
- 125How to stop OpportunistWhenever you are leaving your computer or going to stop using it, make sure you log off so nobody can get into it.
- 126How to stop a virusUse an anti-virus software but make sure you keep it up to date.
- 127How to stop MalwareDon't download anything that you are not sure that it is safe.
- 128How to stop PhishingDon't use your email for every log in you use on different websites.
- 129How to stop accidental damageUnderstand what you are doing or how to stop a problem that is occurring. Also having a backup software.
- 130How to stop HackersDon't put in your email and password for websites that do not require them.
- 131Freedom of Information Act 2000Provides public access to information held by public authorities.
It does this by:
public authorities are obliged to publish certain information about their activities and members of the public are entitled to request information from public authorities. - 132Copyright, Designs and Patents ActCopyright gives the creators of some type of media rights to control how they're used and distributed. Music, Books, videos and software can all be covered by copyright law.
- 1338 Principles of the Data Protection Act
- 134Computer Misuse Act 19901. Accessing computer material without permission.
2. Accessing computer material without permission with intent to commit further criminal offences.
3. Altering computer data without permission. - 135Computer Misuse Act 1990- Methods of access data.Phishing - Where you are asked for personal information. One way to stop phishing is to not use the same email for every website.
Piggyback - Where someone gains illegal entry to a restricted site.
Pharming - when you visiting a website you are directed to a fake website. - 136Technology used for MonitoringTechnology can be used to monitor people's movement and communications.
- 137CCTVSchools, buses, hospitals have CCTV.
This is where they have hidden cameras recording continuously throughout the day. - 138GPS DevicesPhones and any device will track your location everywhere you go.
- 139Airport passenger listsThis shows if you are able to fly or are able to enter the country.
- 140Monitoring EmailThe government monitors peoples emails to see if they are planning an attack or doing something illegal.
- 141andCreate a table
- 142Ubiquitous Computing/Internet everything.
Informações
- Descrição
- Unit 1 FlashCards sobre Sem título, criado por Liam Underwood em 14-10-2019.
- Criado por
- Liam Underwood
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