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Computing Revision (Hardware and Software (Software (Software is something…

- - - - Types of software
        
        Application software: These are the pieces of software on the computer that the user wants to use
        
        Operating software: This piece of software that each computer needs to run. it manages the hardware and the rest of the software. E.G. apps, security, management ,user interface, memory.
        
        utility software: software that is used to clean, organise ,protect your computer and to keep your computer running smoothly. if you your computer to last you need this!U
- - - - The CPU fetches from the memory or storage, however far away or near to the CPU it is the quicker the CPU will process the data. E.G. cache is on the CPU so it doesn't have to go anywhere to get the data whereas, virtual is the furthest away from the CPU so it will take longer to process the data!!!
- - - - EXAMPLES:
        
        ROM
        
        Hardrive
        
        CD/DVD/ Blu ray
        
        Cloud storage
        
        Floppy disk
        
        USB stick/ Flash drive
        
        SSD - Solid State Drive
        
        CD/DVD/Blu Ray:
        
        Basily scratched
        
        Blu Ray - requires special player
        
        Large capacity
        
        Small size
        
        Floppy Disks:
        
        Old
        
        Portable
        
        Break easily
        
        ROM:
        
        Boot-up storage
        
        How to load up computer!!!
        
        Read only memory
        
        USB Stick/ Flash Drive:
        
        External
        
        Universal
        
        Portable
        
        Newer
        
        SSD - Solid State Drive:
        
        Files
        
        Programs
        
        Software
        
        No moving parts
        
        Stores less
        
        Super quick
        
        More expensive
        
        Hardrive:
        
        Files
        
        Software
        Programs
        
        Inside it has a disk
        -Stores more
        
        Slower
        
        Cheaper
        
        Cloud storage:
        
        Secure
        
        Storing online
        
        Access anywhere as long as you have internet
  - - - EXAMPLES:
        
        RAM
        
        Random Access Memory
        
        Currently used files and currently used data!!!
        
        Close to CPU
        
        RAM gets wiped once you turn the computer off!!!
        
        Other types of memory
        
        RAM:
        
        Close to the CPU
        
        Quick
        
        Average (price)
        
        Medium sized
        
        Virtual:
        
        On the hardrive/ SSD
        
        Slowest
        
        Furthest away from the CPU
        
        Price: depends on the hardrive/ SSD
        
        Large (size) big/ biggest
        
        Cache:
        
        On the CPU
        
        Quickest ( it doesn't have to travel)
        
        closest to the CPU
        
        Most expensive
        
        Tiny