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.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

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.

HomeRF

(HOME Radio Frequency) A wireless technology from the HomeRF Working Group, Portland, OR, founded in 1998 by Compaq, IBM, HP and others. In early 2003, the Group disbanded due to lack of interest in competing against the Wi-Fi standard. The HomeRF open standard used the Shared Wireless Access Protocol (SWAP) to transmit in the unlicensed 2.4 GHz band between mobile and desktop devices within a range of 150 feet at 1 or 2 Mbps. Up to 127 devices could be addressed.

Derived from the Digital European Cordless Telephone (DECT) standard, HomeRF used a frequency hopping technique that changed 50 times per second. Each 20 ms frame contained one CSMA/CA slot for data and six full-duplex TDMA slots for voice. See wireless LAN and Wi-Fi.

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References in periodicals archive

On all architectures, we have achieved the same result (average discounted payoff is 49.439308) based on equation (5) and base scenario for an estimation of the valuation of a portfolio of European LIBOR-based swaptions using a Monte Carlo simulation.

European Swaption by Monte Carlo Estimation on Modern Intel Architectures

The implied volatilities on swaptions also tend to be driven by different factors depending on the expiry date of the option.

Making sense of international interest rate movements

Examples of derivative instruments commonly used in the public sector include interest rate swaps, forward delivery swaps, "swaptions," and interest rate caps.

GASB 53: new standards for derivative and hedging activities in the public sector

There have been some variations on the CDS such as credit swaptions and constant-maturity credit default swaps, but the CDS has proved to be an adaptable product and is unlikely to be displaced.

Credit derivatives: an overview

have evaluated the classical CIR model using data on LIBOR, swap rates and caps, and swaptions. And they have found three-factor CIR model is able to fit the term structure of LIBOR and swap rates rather well [4].

Studying term structure of SHIBOR with the two-factor Vasicek model

They compared the number of stress episodes detected by candidate FSI series (credit weights, PC weights, equal variance weights, and equal weights) with the number detected by benchmark volatility measures (VIX, Merrill Lynch Option Volatility Estimate Index, the implied volatility of the Deutscher Aktien Index, Lehman Brothers Swaptions Volatility Index, and Barclays Swaptions Volatility index).

Disentangling diverse measures: a survey of financial stress indexes

The Merrill Lynch implied volatility measures for options and swaptions (MOVE and SMOVE) also receive large positive weights, whereas open interest in money market derivatives and repo market volume receive sizable negative weights.

Monitoring financial stability: a financial conditions index approach

The second agreement a swaption, requires adjustments to the net present value of cost flows for the national principal amount so as to achieve interest payments between a ceiling of 8.5% and floor of 5.95% in the event the loan is refinanced if the market interest rate at time of refinancing exceeds the ceiling the agreement requires the counterparty to pay the Company an amount sufficient to reduce the principal so as to achieve interest payments at a rate of 8.5% of the original principal.

Accounting for interest-bearing instruments as derivatives and hedges

To accomplish this, the company arranges for a one-year "swaption." Under the transaction, which covers one million barrels, the company is given a swap price of $11.75 on the first 500,000 barrels, which represents a discount of 75 cents per barrel from the existing market swap rate.

High cost, lower risk