allocation unit
- noun
- Specialized
:
unidad de asignación
- The allocation unit determines how files are stored.
Examples
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When a file is saved, it occupies one or more allocation units depending on its size.
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Each allocation unit on this hard drive is 4 kilobytes in size.
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Changing the allocation unit size can impact disk performance and storage efficiency.
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An allocation unit is essential for file management.
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The allocation unit on the hard drive determines how much space can be used by each file.
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When saving large files, selecting a smaller allocation unit can increase the efficiency of disk usage.
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Each file stored on the disk occupies at least one allocation unit, even if it is smaller than that.
How Large
Surface Forms
Morphology
The constituents 'allocation' (the act of assigning resources) and 'unit' (a single component) combine to give a clear general idea: a discrete piece used for allocation, so a learner can infer it relates to a chunk of resource. However, the precise technical sense — that it is the smallest allocatable group of disk sectors — is domain-specific and not fully predictable from everyday knowledge of the parts, so it is only partially transparent.
Etymology
Allocation unit comes from a simple image: allocation means giving out and a unit is a small box or space. Each box is 'allocated' to one 'file', so a file must take whole boxes, which is why an allocation unit is the 'smallest amount of disk space' a file can use.