Secondary Storage

jake.maynard100210
Mind Map by jake.maynard100210, updated more than 1 year ago
jake.maynard100210
Created by jake.maynard100210 over 6 years ago
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Description

Mind map of secondary storage

Resource summary

Secondary Storage
  1. non-volatile
    1. When the computer is turned off the data will be saved
    2. optical
      1. Advantages
        1. good for archiving
          1. transportable
            1. durable
            2. Disadvantages
              1. requires special drives to read and write
                1. doesn't store a lot of data compared to the others
                2. Examples
                  1. CD
                    1. DVD
                  2. magnetic
                    1. Advantages
                      1. quick to access data
                        1. some are cheap e.g. floppy disk
                          1. store a large amount of data
                          2. Disadvantages
                            1. data can be altered by magnetic fields
                          3. Solid sate drive(SSD)
                            1. Advantages
                              1. No moving parts
                                1. transfer speeds are faster
                                  1. runs at the same speed no matter how much data is being accessed
                                    1. long life span
                                    2. Disadvantages
                                      1. expensive
                                        1. slow random write speeds
                                        2. Examples
                                          1. memory stick
                                            1. memory card
                                              1. phone
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