Linux servers Definitions

  • A


    Andrew was a joint project between Carnegie-Mellon University and IBM to set up a distributed computing environment on the CMU campus.

  • B

    bash (Bourne Again Shell)

    Bash (Bourne Again Shell ) is the free version of the Bourne shell distributed with Linux and GNU operating systems.

  • Beowulf

    Beowulf is an approach to building a supercomputer as a cluster of commodity off-the-shelf personal computers, interconnected with a local area network technology like Ethernet, and running programs written for parallel processing.

  • blade server

    A blade server is a thin, modular electronic circuit board containing one, two, or more microprocessors and memory, that is intended for a single, dedicated application (such as serving Web pages) and that can be easily inserted into a space-saving rack with many similar servers. (Continued...)

  • bogomips

    Bogomips is a measurement provided in the Linux operating system that indicates in a relative way how fast the computer processor runs.

  • boot loader (boot manager)

    A boot loader, also called a boot manager, is a small program that places the operating system (OS) of a computer into memory...

  • Bourne shell

    The Bourne shell is the original UNIX shell (command execution program, often called a command interpreter) that was developed at AT&T. Named for its developer, Stephen Bourne, the Bourne shell is also known by its program name, "sh". The shell prompt (character displayed to indicate readiness for input) used is the "$" symbol. The Bourne shell family includes the Bourne, Korn shell, bash, and zsh shells.

  • BSD (Berkeley Software Distribution)

    BSD (originally: Berkeley Software Distribution) refers to the particular version of the UNIX operating system that was developed at and distributed from the University of California at Berkeley.

  • C

    chmod (change mode)

    In a UNIX-based operating system, chmod (change mode) is a command used by a file owner or administrator to change the definition of access permissions to a file or set of files.

  • CICS (Customer Information Control System)

    CICS (Customer Information Control System) is an online transaction processing (OLTP) program from IBM that, together with the COBOL programming language, has formed over the past several decades the most common set of tools for building customer transaction applications in the world of large enterprise mainframe computing.

  • compaction

    In a data center, compaction is the reduction or consolidation of hardware to make better use of physical floor space.

  • computer-intensive

    Computer-intensive is a term that applies to any computing application that requires the resources of a lot of computers, such as grid computing.

  • COTS (commercial off-the-shelf)

    COTS (commercial off-the-shelf) describes ready-made products that can easily be obtained.


    COTS, MOTS, GOTS, and NOTS are abbreviations that describe pre-packaged software or hardware purchase alternatives.

  • CRON script

    A CRON script is a list of one or more commands to a computer operating system or application server that are to be executed at a specified time.