OVERLAY

Overlay

In a general computing sense, overlaying means "replacement of a block of stored instructions or data with another." Overlaying is a programming method that allows programs to be larger than the computer's main memory. An embedded system would normally use overlays because of the limitation of physical memory, which is internal memory for a system-on-chip and the lack of virtual memory facilities.

The above text is a snippet from Wikipedia: Overlay (programming)
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overlay

Noun

  1. A piece of paper pasted upon the tympan sheet to improve the impression by making it stronger at a particular place.
  2. Odds which are set higher than expected or warranted. Favorable odds.
  3. A horse going off at higher odds than it appears to warrant, based on its past performances.
  4. A decal attached to a computer keyboard to relabel the keys.

Verb

  1. To lay, or spread, something over or across; to cover.
  2. To overwhelm; to press excessively upon.
  3. To smother with a close covering, or by lying upon.
  4. To put an overlay on.


The above text is a snippet from Wiktionary: overlay
and as such is available under the Creative Commons Attribution/Share-Alike License.

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