Please enable JavaScript.

Coggle requires JavaScript to display documents.

Types of Computer (Mainframe computers Mainframe computers (It is a large,…

- - - - They can support multiple operating systems
      - They have huge amounts of storage capacity
      - They have very fast processor speeds
      - They have huge internal memories
      - They can have several CPUs
      - They often operate using time sharing or batch processing
- - - - They are more convenient than smartphones because the technology delivers notifications straight to the user's wrist
      - They are very easy to use for monitoring fitness and health regimes
    - - Smartwatches are relatively large and bulky, which can make them uncomfortable to wear
      - They tend to be rather unattractive in design
    - - Messaging via text or video
      - Weather forecasts
      - Ability to make and take phone calls
      - Fitness and health-monitoring capability
      - Intenet connectivity
      - GPS
- - - - They can be used almost anywhere because they use Wi-Fi and mobile phone networks, this is not the case of laptops or PCs, although tablets use the same technology
      - They have hundreds of Apps (such as camera facility, MP3/4 players and so on) like tablets, but it is an advantage compared to laptops
      - You can use them to make phone calls and connect to the Internet while on the move
      - Their battery life is longer than laptops'
      - They are smaller in size and lightweight compared to laptops, so it is easier to carry them round
    - - Memory size in most phones is not very large compared with PCs or laptops, although it is compatible with tablets
      - Not all website features are compatible with smartphone operating systems
      - Web browsing and photography can drain the battery quickly
      - It is much easier to the phone to be lost or stolen than laptops or PCs because of it small size
      - They have smaller screens what makes it difficult to read and keyboards make typing more difficult and slower. PCs and laptops have much bigger screens and larger keyboards
      - The data transfer rate using mobile phone networks is slower than with Wi-Fi
    - - Telephone banking (send and receive money through banking Apps)
      - Voice over Internet Protocol (VoIP) is a telephone network using the Internet
      - Calendar functions
      - Streaming of videos
      - Global Positioning System (GPS)
      - Streaming of music
      - Surf the net
      - Instant access to social networks (you can contact your friends no matter where you are in the world)
      - Send and receive mails
      - Instant messaging
- - - - Can use several Apps as standard
      - Do not generate any heat because they use solid state technology
      - Simpler to use bacause they use touch-screen technology and do not need any other input devices such as a keyboard or a mouse
      - Fully portable
      - Faster to switch on
      - When the power button is pressed it goes into standby but remains connected to the Internet, so the user still hears alerts when emails or other 'events' are received
      - Longer battery life
    - - Typing on a touch-screen can be slow and error-prone
      - Transferring of files often has to be done through an 'Apps store'; the lack of an App 'drag and drop' facility can prove irritating for users
      - They can be expensive to run if the Internet is being accessed frequently via 3G/4G/5G networks
      - Laptops tend to support more types of file format than tablets and are better quiped to run different types of software
      - They often have limited memory or storage
    - - Bluetooth technology
      - Solid state memory and cloud storage to back up and synchronise ('sync') data sources
      - Lower weight and longer battery life than laptops
      - Front and back facing cameras which are used to take photos and videos, or act as a webcam when doing videocalls
      - Sensors
        
        Proximity sensors to detect if the device is close to, for example, the ear which allows to block unintended 'touches'
        
        Accelerometer which detects movement and orientation of the device, for example, moving the display from portrait to landscape to view videos
        
        Speech-recognitions systems to enable the user to ask the device to look for things
      - High-definition, anti-glare displays
- - - - There are no trailing wires, etc.
      - They can take full advantage of Wi-Fi
      - Portability
      - They can link into any multimedia system
    - - Easier to steal
      - They have a limited battery life, so the user may need to carry a heavy adaptor
      - The keyboards and pointing devices can be awkward to use
    - - Low power consumption and long battery life
      - Lightweight to aid portability
      - The processor should not generate too much heat
- - - - PCs usually plug straight into a wall socket and the larger casings allow a better dissipation of any heat build-up
      - There is less likelihood of them being damaged because they are fixed in one location
      - The desktop tends to have a better specification for a given price
      - Internet access is also more stable because they are not moved around
      - Spare parts and connections tend to be standardised, which results in lower costs
    - - Because they are not portable, it is necessary to copy files, etc. when you want to work elsewhere
      - They tend to be more complicated since all the components need to be carried round with you and then connected to the computer by wires or wireless connections
      - PCs are not portable since they are made up of separate components