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Trade exchange. An association of businesses formed for the purpose of trading with one another, using mutual credit to keep account. Typically the lead business will run the exchange, performing a brokering services and providing (or renting) an online marketplace for members to meet their reciprocal needs and register their transactions. Also ...
Intermediate frequency. In communications and electronic engineering, an intermediate frequency ( IF) is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception. [1] The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called heterodyning ...
Digital Express Group, predecessor to DIGEX, was founded by Doug Humphrey and Mike Doughney in the basement of Mr. Humphrey's townhouse in Greenbelt, Maryland in 1991, offering web hosting services and Internet access. [3] In 1995, the company raised $8 million from Grotech Capital and Venrock. [3]
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Multi-factor authentication ( MFA; two-factor authentication, or 2FA, along with similar terms) is an electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more pieces of evidence (or factors) to an authentication mechanism.
The INF Treaty banned all of the two nations' nuclear and conventional ground-launched ballistic missiles, cruise missiles, and missile launchers with ranges of 500–1,000 kilometers (310–620 mi) (short medium-range) and 1,000–5,500 km (620–3,420 mi) (intermediate-range). The treaty did not apply to air- or sea-launched missiles.
Certificate authority. In cryptography, a certificate authority or certification authority ( CA) is an entity that stores, signs, and issues digital certificates. A digital certificate certifies the ownership of a public key by the named subject of the certificate. This allows others (relying parties) to rely upon signatures or on assertions ...
An intermediate distribution frame ( IDF) is a distribution frame in a central office or customer premises, which cross connects the user cable media to individual user line circuits and may serve as a distribution point for multipair cables from the main distribution frame (MDF) or combined distribution frame (CDF) to individual cables ...