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Hardware, - Coggle Diagram

- - - - a semiconductor-based storage device, which typically uses NAND flash memory to save persistent data.
    - - a small, portable device that plugs into the USB port on your computer
    - - Standard SD cards go up to 2GB; SDHC (High Capacity) cards range from 4GB to 32GB, and SDXC (Extended Capacity) cards go from 64GB up to 1TB (with the capacity to go up to 2TB eventually).
  - - - widely used to distribute software, transfer files, and create back-up copies of data.
    - - flat circular plates made of aluminum or glass and coated with a magnetic material.
    - - revolutionized sound recording and reproduction and broadcasting.
  - - - A standard compact disc measures 4.7 inches, or 120 millimeters (mm), across, is 1.2 mm thick, weighs between 15 grams and 20 grams, and has a capacity of 80 minutes of audio, or 650 megabytes (MB) to 700 MB of data. A CD works by focusing a 780 nanometer wavelength semiconductor laser onto a single track of the disc.
    - - The DVD is a digital optical disc data storage format.