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  2. Proton-exchange membrane fuel cell - Wikipedia

    en.wikipedia.org/wiki/Proton-exchange_membrane...

    Proton-exchange membrane fuel cells ( PEMFC ), also known as polymer electrolyte membrane (PEM) fuel cells, are a type of fuel cell being developed mainly for transport applications, as well as for stationary fuel-cell applications and portable fuel-cell applications. Their distinguishing features include lower temperature/pressure ranges (50 ...

  3. Exchange rate - Wikipedia

    en.wikipedia.org/wiki/Exchange_rate

    Therefore, most carriers have a CAF charge to account for these fluctuations. Purchasing power of currency. The real exchange rate (RER) is the purchasing power of a currency relative to another at current exchange rates and prices. It is the ratio of the number of units of a given country's currency necessary to buy a market basket of goods in ...

  4. Open-Xchange - Wikipedia

    en.wikipedia.org/wiki/Open-Xchange

    Founded in 2005 by Rafael Laguna and Frank Hoberg, the software was released in December of the same year, and started as a Linux -based email and groupware program that was positioned as open-source alternative to Microsoft Exchange. [2] Andreas Gauger took over as CEO of Open-Xchange AG in May 2020.

  5. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN) or large enterprise telecommunications systems. It facilitates the interconnection of telephone subscriber lines or digital system virtual circuits, enabling telephone calls between subscribers.

  6. Microsoft Messenger service - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Messenger_service

    Microsoft Messenger service. Messenger (formerly MSN Messenger Service, [1] .NET Messenger Service and Windows Live Messenger Service) was an instant messaging and presence system developed by Microsoft in 1999 for use with its MSN Messenger software. It was used by instant messaging clients including Windows 8, Windows Live Messenger ...

  7. ActiveSync - Wikipedia

    en.wikipedia.org/wiki/ActiveSync

    ActiveSync allows a mobile device to be synchronized with either a desktop PC or a server running a compatible software product. On desktops, ActiveSync synchronizes emails, calendar, contacts and tasks with Microsoft Outlook, along with Internet bookmarks and files. ActiveSync does not support all features of Outlook.

  8. Army & Air Force Exchange Service - Wikipedia

    en.wikipedia.org/wiki/Army_&_Air_Force_Exchange...

    The Army & Air Force Exchange Service ( AAFES, also referred to as The Exchange and The PX or The BX) provides goods and services at U.S. Army and Air Force installations worldwide, operating department stores, convenience stores, restaurants, military clothing stores, theaters and more across 50 U.S. states and more than 30 countries.

  9. Extensible Storage Engine - Wikipedia

    en.wikipedia.org/wiki/Extensible_Storage_Engine

    Extensible Storage Engine ( ESE ), also known as JET Blue, is an ISAM (indexed sequential access method) data storage technology from Microsoft. ESE is the core of Microsoft Exchange Server, Active Directory, and Windows Search. It is also used by a number of Windows components including Windows Update client and Help and Support Center.