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Types of computer (Tablets (features (sensors (proximity sensors (detect…

- - - - separate monitor
      - keyboard
      - mouse
      - processor unit
  - - - spare parts and connections are usually standarized,which results in lower costs.
      - the desktop has better specification for a given price
      - power consuption si not critical as they usually plug into a wall socket.
      - since they are usually fixed in on location, is less likely for them being damaged
      - internet access is more stable because they are not moved around
    - - they are not portable as they are made up of sparate components
      - Since it's not portable, it is necesary to copy the files when you want to work elsewhere.
      - Tend to be more complicated since the components need to be carried around with you and then connected to the computer, which also clutters desk space
- - - - together in one single unit
        
        laptop advantages over PCs
        
        portability
        
        it can take full advantage of Wi-Fi
        
        Since it's one single unit, there are no trailing signals
        
        Beacuse it's portable, it can link into any multimedia system
        
        laptop disadvantages over
        
        as they are portable, they are easier to steal
        
        they have limited battery life, so the user need to carry a heavy adaptator
        
        keyboard and pointing devices sometimes can be awkward to use
- - - - Wi-Fi
      - 3G
      - 4G
      - 5G
  - - - to back up and synchronise data sources
    - - proximity sensors
        
        detect if the device is close to something
      - accelerometer
        
        detects movement and orientation of the device
      - speech-recognitions systems
        
        enable the user to ask the device to look for things
  - - - fast to switch on
      - fully portable
      - touch screen technology, so it's simple to use
        
        doesn't need any input devices
      - doesn't generate any heat
      - battery life a lot longer
      - can use several apps as standard
      - when power buttom pressed
        
        device remains connected to the internet
        
        goes into standby
    - - limited memory compared to laptop
      - expensive to run if internet access is via 3G/4G/5G
      - transfering files has to be done through app stores
        
        lack of an app "drag and drop" facility can be irritating to users
      - typing on touch screen can be slow and error-prone
      - laptops support more types of files format than tablets
        
        laptop better equipped to run different types of software
- - - - voice over internet protocol (VoIP)
  - - - pages difficult to read
      - small keyboard make typing slower and more difficult
    - - easier to lose
- - - - have several CPUs
      - very fast processor speeds
      - can support multiple operating systems
      - huge amount of storage capacity
      - huge internal memory
      - often operate using time sharing or batch processing
  - - - where huge amounts of data need to be processed every day
- - - - internet connectivity
      - make and take phone calls
      - messaging via text or video
      - weather forecasts
      - fitness and health-monitoring capability
      - GPS
    - - additional advantages
        
        more convenient than smartphones
        
        notifications goes directly to the user's wrist
        
        easy to use to monitorate fitness and health regimes
      - additional disadvantages
        
        are relatively large and bulky
        
        makes them uncomfortable to wear
        
        tend to be unattractive in design
        
        creates some reluctance for this technology to be adopted