swap

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Related to Swap option: swaption

swap

(operating system)
To move a program from fast-access memory to a slow-access memory ("swap out"), or vice versa ("swap in"). The term often refers specifically to the use of a hard disk (or a swap file) as virtual memory or "swap space".

When a program is to be executed, possibly as determined by a scheduler, it is swapped into core for processing; when it can no longer continue executing for some reason, or the scheduler decides its time slice has expired, it is swapped out again.

This contrasts with "paging" systems in which only parts of a program's memory is transfered.

SWAP (severe weather avoidance plan)

An approved plan to minimize the effect of severe adverse weather to traffic flows in affected terminal and/or ARTCC (air traffic control center) areas. This plan is put into operation when flight through an airspace is either not possible or is difficult. Such a plan should cause minimum disruption.
References in periodicals archive ?
Baddour, D-Methuen, chairman of the Senate Transportation Committee, said the approval of the credit proposal would "stave off potential catastrophe" for taxpayers and toll payers as payments on the swap option finance deal are expected to dramatically escalate in the coming months.
During a rare joint work session with the Lane County Board of Commissioners, the council appeared set to agree to a city-county task force that would study land swap options in the coming weeks and months.
Indian lender, IndusInd Bank (NSE: INDUSINDBK), plans to exploit Reserve Bank of India's window of swap options, to raise USD300m from overseas investors.
Dozens shouted their message in unison at the start of the meeting, calling on state officials to "tax the rich" and halt multimillion-dollar payments to banks for interest rate swap options, or "swaptions," before resorting to service cuts and higher fares.
That could include higher interest rates or equity swap options to persuade creditors to give up claims to key assets, like the profitable port operator.