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Atomicity (computer science)

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== your ass stinks

'[[File:Media:your socks are old and are stinking worse than yrs old stale food ==']] completes fully, or has no lasting effect. It is a slightly ambigious term:

  • In database systems, it is one of the ACID properties. In this context, "atomic" means nothing more than the above definition.
  • In other areas of computer science such as operating systems, "atomic" also refers to the property that the changes made by an operation are only visible after it completes. That is, that there are no intermediate states visible to other threads. In database systems, this property is described separately as isolation.
  • In other areas of computer science atomic can mean the smallest addressable unit of memory. The byte is typically atomic in this sense.
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