Windows Server Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing Microsoft Windows Server and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

  • E

    Exchange Online

    Exchange Online is the hosted version of Microsoft's Exchange Server messaging platform that organizations can obtain as a stand-alone service or via an Office 365 subscription.

  • Exchange Remote Connectivity Analyzer (ExRCA)

    The Exchange Remote Connectivity Analyzer (ExRCA) is a Web-based tool that helps Exchange administrators identify and troubleshoot connectivity issues in their deployments.

  • Exchange Server 2013 Service Pack 1 (SP1)

    Exchange Server 2013 SP1 is a service pack for Exchange Server 2013 that includes a number of new and updated Exchange Server 2013 features and capabilities.

  • Exchange staged migration

    The staged Exchange migration process transfers data and mailboxes from one Exchange server to another, either on-premises or in the cloud.

  • Exchange Web Services (EWS)

    Exchange Web Services (EWS) is an application program interface (API) that allows programmers to access Exchange items such as calendars, contacts and email in Exchange Server 2007 and higher.

  • extended desktop

    Extended desktop is a feature in a computer that allows a user to extend viewing capabilities by using two or more monitors at the same time.

  • F

    failover cluster

    A failover cluster is a group of servers that work together to maintain high availability of applications and services.

  • fatal exception

    In a computer error message, a fatal exception indicates an exceptional situation requiring that the program responsible for the situation be closed.

  • favicon (favorite icon)

    A favicon (for "favorite icon") is a customized image that Microsoft Internet Explorer 5.0 (and above) uses, if it is available, as an icon to go with a user-specified bookmarked site on the Links bar at the top of a Web browser window.

  • File Server Resource Manager (FSRM)

    File Server Resource Manager is a features set in the File and Storage Services server role that helps admins classify and manage stored data in file servers for data management.

  • floating point unit (FPU)

    A floating point unit (FPU), also known as a math coprocessor or numeric coprocessor, is a specialized coprocessor that manipulates numbers more quickly than the basic microprocessor circuitry. The FPU does this by means of instructions that focus entirely on large mathematical operations.

  • FOPE (Forefront Online Protection for Exchange)

    FOPE (Forefront Online Protection for Exchange) is a discontinued cloud service for organizations using Exchange Server or Exchange Online.

  • fragmentation

    In some operating system's file systems, a data file over a certain size is stored in several "chunks" or fragments rather than in a single contiguous sequence of bits in one place on the storage medium, a process that is called fragmentation.

  • G

    general protection fault (GPF)

    General protection fault (GPF, sometimes seen as general protection error) the name of an error caused when an application program (for example, Microsoft Word or the Netscape Web browser) tries to access storage that is not designated for its use.

  • geo-replication

    Geo-replication is a type of data storage replication in which the same data is stored on servers in multiple geographic locations.

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