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INFO 1 C4-6 - Inputs, Storage, Output (Outputs (VDU, Monitor, Data…

- - - - Keyboards
      - Pointing Devices
      - Touchscreens
    - - Optical Character Recognition
        
        Used by DVLA to recognise car regs
      - Scanner
    - - Optical Mark Reader (OMR)
      - Magnetic Ink Character Recognition
      - Bar Code Reading
      - Magnetic Stripe, Chip and PIN and Smart Cards
      - Speech Recognition
      - Digital Cameras
- - - - Floppy Disk
        
        too small and expensive for modern computing
        
        holds 1.44Mb
      - Hard Disk
        
        Main Storage for all computers. Disk can write and read.
        
        Mass storage, goes up to several Tb
      - Magnetic Tape
        
        Used for storing back ups because of the cheapness
        
        Two types DAT (Digital Audio Tape) and AIT (Artificial Intelligent Tape); these contain a chip that stores a catalogue of the data
    - - CD-ROM
        
        800Mb bought with content already on it
        
        Pre-written material
      - DVD-ROM
        
        As above, but with more storage, 4.7Gb
      - CD-R/DVD-R
        
        Write once read by many storage device (WORM). Very cheap and efficient for backing up
      - link to coggle-downloads.s3.amazonaws.com
    - - CD-RW / DVD-RW
        
        Relatively Cheap and holds about 800Mb
    - - Memory Stick
        
        Uses modern USB ports to transfer data; mass storage device, capacity always increasing
      - SSD
        
        Alternative to HDD, it is a much faster drive that has large storage capacity.
        
        emerging tech still quite expensive