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In 1996, the National Institute of Standards and Technology defined electronic data interchange as "the computer-to-computer interchange of a standardized format for data exchange. EDI implies a sequence of messages between two parties, either of whom may serve as originator or recipient. The formatted data representing the documents may be ...
The Financial Information eXchange ( FIX) protocol is an electronic communications protocol initiated in 1992 for international real-time exchange of information related to securities transactions and markets. With trillions of dollars traded annually on the NASDAQ alone, financial service entities are employing direct market access (DMA) to ...
Main distribution frame. Small, single-sided MDF for a military base, 1940s. Modern main distribution frame. In telephony, a main distribution frame ( MDF or main frame) is a signal distribution frame for connecting equipment ( inside plant) to cables and subscriber carrier equipment ( outside plant ).
Telephone exchange. A telephone operator manually connecting calls with cord pairs at a telephone switchboard. A modern central office, equipped with voice communication and broadband data capabilities. A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN ...
An optical cross-connect ( OXC) is a device used by telecommunications carriers to switch high-speed optical signals in a fiber optic network, such as an optical mesh network . In the 1980s, when transmission speeds supported by optical fibers increased from 45mb to 2.5gb, carrier networks developed and introduced digital cross connects to ...
There are two different protocols you can choose when setting up a third-party email app: POP or IMAP. POP downloads a copy of your emails from your account (mail.aol.com) to the app. This means that if you delete an email from your account after it's been downloaded, the downloaded copy remains in the app. Additionally, POP only downloads ...
The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard operators who used electrical cords or switches to establish the connections. The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges ...
Contact lenses are comparably priced to most other large online retailers. A 90-day supply of 1-day Acuvue Moist retails for $73.86. Standard shipping is free and takes 5–7 days, based on the ...