Browse Definitions :
Definition

Multics (Multiplexed Information and Computing Service)

Multics (Multiplexed Information and Computing Service) was a mainframe time-sharing operating system that was developed in the 1963-1969 period through the collaboration of the Massachusetts Institute of Technology (MIT), General Electric (GE), and Bell Labs. Multics was the first or one of the first operating systems that used page-segmented storage. The operating system was written in PL/I and ran on GE hardware. By 1970, Bell Labs had withdrawn from the project, and Honeywell, which had bought GE's computer division, continued as the hardware provider. Support from the Advanced Research Projects Agency helped sustain the project.

In 1973, Honeywell announced a commercial system, the 6180, consisting of two processors that ran at 1 MIPS each, 768 kilobytes of memory, an 8 megabyte bulk store, a 1.6 gigabyte hard disk, 8 tape drives, and two communication controllers. The price was about $7 million. Later, a multiple disk system called the New Storage System (NSS) was added. In 1977, Honeywell offered the first commercial relational database, the Multics Relational Data Store (MRDS).

Over time, Multics customers included General Motors, Ford, and Industrial Nucleonics (later AccuRay). By the late 1980s, efforts to migrate Multics to more strategic processor architectures such as Intel's had failed and Honeywell transferred maintenance to one of its last customers, the University of Calgary, which has passed it on to a local company, CGI Group Inc. As of September, 1998, CGI Group continued to operate the one remaining Multics system.

In 1969, the Multics name (pronounced MUHL-tihx) inspired the creators of a newer operating system to call it Unix.

This was last updated in November 2005

Continue Reading About Multics (Multiplexed Information and Computing Service)

SearchCompliance

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

  • information governance

    Information governance is a holistic approach to managing corporate information by implementing processes, roles, controls and ...

  • enterprise document management (EDM)

    Enterprise document management (EDM) is a strategy for overseeing an organization's paper and electronic documents so they can be...

SearchSecurity

  • denial-of-service attack

    A denial-of-service (DoS) attack is a security event that occurs when an attacker makes it impossible for legitimate users to ...

  • information security (infosec)

    Information security, often shortened to infosec, is the practice, policies and principles to protect data and other kinds of ...

  • user authentication

    User authentication verifies the identity of a user attempting to gain access to a network or computing resource by authorizing a...

SearchHealthIT

SearchDisasterRecovery

  • risk mitigation

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

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage

  • cloud storage

    Cloud storage is a service model in which data is transmitted and stored on remote storage systems, where it is maintained, ...

  • cloud testing

    Cloud testing is the process of using the cloud computing resources of a third-party service provider to test software ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close