Browse Definitions :
Definition

distributed

Contributor(s): Ivy Wigmore

Distributed, in an information technology (IT) context, means that something is shared among multiple systems which may also be in different locations. 

In distributed computing, processing and data are spread out over multiple computers, usually over a network. Years ago -- prior to low-cost computer power on the desktop -- computing was organized in centralized "glass houses" (so-called because the computers were often shown to visitors through picture windows). Today, most enterprises locate applications and data where they can operate most efficiently, to some mix of desktop workstations, local area network servers, regional servers, Web servers, and other servers. 

The cloud model, in which data and applications are served to users over the Internet, is a  particular implementation of distributed computing, as is grid computing, in which large numbers of often geographically dispersed systems work together to perform compute-intensive tasks. 

The Distributed Computing Environment (DCE), a standard developed in the early 1990s, was influential for subsequent distribution models. Current models for distributed computing include client-server, clustered, n-tier and peer-to-peer (P2P).  

A few examples of distributed systems:

In a distributed database, portions of the database are stored on multiple computers within a network. Users have access to the portion of the database at their location so that they can access the data relevant to their tasks without interfering with the work of others.

A distributed antenna system (DAS) is a network of relatively small antennas installed throughout a building to serve as repeaters. A DAS is designed to overcome the problem of isolated spots of poor coverage inside a large building.

Distributed learning systems involve remote instructional delivery that may include Web-based content, streaming video, videoconferencing and other combinations of electronic and traditional educational models.

A distributed file system (DFS) is a client/server-based application that allows clients to access and process data stored on the server as if it were on their own computer.

A distributed denial-of-service (DDoS) attack is a DoS attack in which a multitude of compromised systems attack a single target, thereby causing denial of service for users of the targeted system.

This was last updated in February 2015

Continue Reading About distributed

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

SearchSecurity

  • buffer underflow

    Buffer underflow, also known as buffer underrun or buffer underwrite, is a threat to data that typically occurs when the ...

  • digital signature

    A digital signature is a mathematical technique used to validate the authenticity and integrity of a message, software or digital...

  • denial-of-service attack

    A denial-of-service attack is a security event that occurs when an attacker prevents legitimate users from accessing specific ...

SearchHealthIT

SearchDisasterRecovery

  • virtual disaster recovery

    Virtual disaster recovery is a type of DR that typically involves replication and allows a user to fail over to virtualized ...

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

SearchStorage

  • secondary storage

    Secondary storage is storage for noncritical data that does not need to be frequently accessed.

  • Pure Storage

    Pure Storage is a provider of enterprise data flash storage solutions designed to substitute for electromechanical disk arrays.

  • yobibyte (YiB)

    A yobibyte (YiB) is a unit of measure used to describe data capacity as part of the binary system of measuring computing and ...

Close