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.

  • C

    CHKDSK (check disk)

    CHKDSK (pronounced check disk) is a command that displays a status report for a volume, such as a disk, and can correct any errors found in that volume.

  • client-server network

    A client-server network is a communications model in which multiple client programs share the services of a common server program.

  • clock cycle

    In a computer, the clock cycle is the time between two adjacent pulses of the oscillator that sets the tempo of the computer processor.

  • cluster log (CL)

    A cluster log (CL) is a record of cluster service activity in a server member cluster.

  • cluster name object (CNO)

    A cluster name object (CNO) is an Active Directory computer object linked with the network resource Cluster Name.

  • CNAME

    A CNAME specifies an alias or nickname for a canonical name record in a domain name system (DNS) database. (Continued...)

  • cold/warm/hot server

    In the backup and recovery of a computer server, a cold server is a backup server whose purpose is solely to be there in case the main server is lost.

  • COM+

    COM+ is an extension of Component Object Model (COM), Microsoft's strategic building block approach for developing application programs.

  • command

    In computers, a command is a specific order from a user to the computer's operating system or to an application to perform a service, such as "Show me all my files" or "Run this program for me.

  • command interpreter

    A command interpreter is the part of a computer operating system that understands and executes commands that are entered interactively by a human being or from a program.

  • command line interface (CLI)

    A CLI (command line interface) is a user interface to a computer's operating system or an application in which the user responds to a visual prompt by typing in a command on a specified line, receives a response back from the system, and then enters another command, and so forth.

  • Component Object Model (COM)

    Component Object Model (COM) is Microsoft's framework for developing and supporting program component objects.

  • compound document

    In information technology, a compound document is an organized collection of user interfaces that form a single integrated perceptual environment.

  • computer

    A computer is a device that accepts information (in the form of digitalized data) and manipulates it for some result based on a program or sequence of instructions on how the data is to be processed.

  • configuration drift

    Configuration drift occurs naturally in data center environments when changes to software and hardware are not recorded or tracked in a comprehensive and systematic fashion.

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