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SOFTWARE AND HARDWARE (Computer functions (Computers carry out four…

- - - - windows
      - linux
  - - - local area networks
      - metropolitan area networks
      - wide area networks
    - - adaptor/network card
      - hub
      - transmission medium
- - - - it's the computer's main memory (Random Access Memory)
    - - fast memory installed between the RAM and the microprocessor
    - - a special read-only memory that carries out the initial check that your computer does when it's turned on
    - - we use the data storage units to save the data the RAM does not save when the computer is turned off
      - Types
        
        Optical discs
        
        Solid-state memory (flash)
        
        Magnetic disk
  - - - Slots
        
        used to expand or add new elements
      - IDE, SATA or ATA
        
        connectors
      - Chipset
        
        integrated circuits that perform related functions
      - Various input/ output ports
    - - We can physically connect the devices to the computer in many different ways using:
        
        an expansion slot. Connects sound cards, graphic cards...
        
        special connectors on the motherboard. Connects the hard disk, DVD drives...
        
        external ports on the side/back of the computer, like the USB port.
      - We need to install a driver, that allow the device to connect with the operating system. In some devices the operating system installs the drives. In others we have to use the software of the device manufacturer.