Pc (Personal Computer)

Optical Storage Device – uses lasers and lights as its mode of saving and retrieving data.

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  Blu-ray disc – A digital optical storage device which was intended to replace the DVD format.
  
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  CD-ROM disc – An optical storage device that is read-only or cannot be modified nor deleted.
  
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  CD-R and CD-RW disc – CD-R is a recordable disc that can be written to once, while CD-RW is a rewritable disc that can be written to multiple times.
  
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  DVD-R, DVD+R, DVD-RW and DVD+RW disc – DVD-R and DVD+R are recordable discs that can be written to once, while DVD-RW and DVD+RW are rewritable discs that can be written to multiple times. The difference between the + and – is in the formatting and compatibility.
  

Flash Memory Device – is now replacing magnetic storage device as it is economical, more functional and dependable.

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  Memory card – An electronic flash memory device used to store digital information and commonly used in mobile electronic devices.
  
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  Memory stick – A memory card that is removable.
  
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  SSD – Solid State Drive – A flash memory device that uses integrated circuit assemblies to save data steadily.
  
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  USB flash drive, jump drive or thumb drive – A small, portable storage device connected through the USB port.
  

Online and Cloud – is now becoming widespread as people access data from different devices.

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  Cloud storage – Data is managed remotely and made available over a network. Basic features are free to use but upgraded version is paid monthly as a per consumption rate.
  
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  Network media – Audio, Video, Images or Text that are used on a computer network. A community of people create and use the content shared over the internet.
  

Paper Storage – method used by early computers for saving information.

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  OMR – stands for Optical Mark Recognition – A process of capturing marked data of human from forms like surveys and tests. It is used to read questionnaires with multiple choices that are shaded.
  
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  Punch card – A piece of hard paper used to contain digital information coming from the perforated holes. The presence or absence of holes in predetermined positions define the data.