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ICT Cambridge Nationals (3.1 Data (3.1.2 Data types & how they're…

- - - - A date/time
    - - Restricts user's choice;can be used on info*-gathering document
    - - Any combo* of letters, symbols, spaces/numbers
    - - An additional component, usually found in a spreadsheet
    - - Numbers
    - - There are only 2 choices
    - - Any character
  - - - Has no meaning
      - Can be made up of letters, numbers, symbols, graphics & sound
- - - - :smiley:Questions can be modified based on answers given to previous Qs*
        :frowning_face:Can be time-consuming
    - - :smiley:Cheap if online feedback methods are used
        :frowning_face:Format of feedback needs to match processing that is carried out
    - - :smiley:Do not need human intervention (data can be sent electronically)
        :frowning_face:Sensors may stop working if there's a power cut
    - - :smiley:Can help keen customers using a business
        :frowning_face:Some people think it's an invasion of privacy
    - - :smiley:Same email can be sent to many people simultaneously
        :frowning_face:Emails may be diverted into spam/junk folders by email provider
    - - :smiley:Can show trends & patterns that help w/ decision making
        :frowning_face:Statistics show data from a sample of people rather than a true representation
    - - :smiley:Large numbers of people can be asked to fill in the same one
        :frowning_face:Badly designed question may not get data required
    - - :smiley:Data has already been collected
        :frowning_face:Data may not be exactly what is required
  - - - Voting
    - - Advertising
    - - Scan & shop
    - - Smartphones
    - - Activity tracker
- - - - :smiley:People can work remotely & collab
        :smiley:Data processed & stored
      - :frowning_face:Could be hacked
        :frowning_face:Internet required
    - - Hard disk drive using magnetic disks
        
        Uses magnetic disks to store software & data in files
        
        Storage of operating system
      - Solid state drive
        
        Uses flash memory to store software & data in files
        
        Storage of operating system
      - Optical device
        
        Uses optical media (e.g. CDs) to store software & data in files
        
        Storage of files moved to another computer
      - Flash memory devices
        
        Used in USB ports
        
        Save a file on memory stick
- - - - ANPR checks no. plate of every vehicle it sees & interacts w/ the DVLA
        
        If they have current driving licence
        
        If car is taxed & insured
        
        Owner of vehicle
        
        If vehicle has current MOT
- - - - Records are a collection of fields
- - - - How it's presented
      - Objectives defined during initiation phase of project life cycle
      - What the info* is
    - - Spreadsheet
      - Database
      - Word processor
        
        Mail merge
        
        Headers/footers
        
        Tables
        
        Reports
        
        Receipts
      - Desktop publishing (DTP) software
      - Presentation
    - - Consideration of target audience e.g. gender
    - - Ways to distribute information
    - - Restrictions on the content (user constraints)
    - - Single spreadsheet page
    - - Checks to ensure whether data is in correct format
    - - Collection of worksheets
    - - How information is accessed
    - - Data that is live & up-to-date e.g. smart motorways
- - - - Face-to-face presentation :arrow_right: A projector & screen needed to view resource, & hardware the presentation is stored on
      - Report :arrow_right: paper-based report needs no hardware to view it.
  - - - Presentation :arrow_right: If there are links to other file types, software for these will also be needed
      - Integrated document :arrow_right: Word processing software will be needed, but components from other document types will also need appropriate software
      - Multimedia resource :arrow_right: Video-playing software is needed. Some operating systems may include this. If not, users must download & install software before they can view & use the resource