explanation of allocation methods for various storage devices, constraints, and the concepts of fragmentation, avoidance, and correction.

Essay should be 4 pages of content presenting an explanation of allocation methods for various storage devices, constraints, and the concepts of fragmentation, avoidance, and correction.
Essay includes a comparison table for each of the storage mediums.
The minimum concepts to cover and explain in the essay are contiguous and non-contiguous, allocation table, indexing, tape allocation, disk allocation, storage allocation, partitions, volumes, fragmentation, and defragmentation.
Your paper should conform to the APA style. You will include a title page, abstract, table of contents, and a references page in addition to the actual content pages required.