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Bring yourself up to speed with our introductory content.


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

  • Energy Star

    Energy Star is a government-backed labeling program that helps people and organizations save money and reduce greenhouse gas emissions by identifying factories, office equipment, home appliances and electronics that have superior energy efficiency. ... Continue Reading

  • Quiz: Data center energy efficiency trends

    Take this quiz on data center energy efficiency, and find out how much you know about cutting costs and saving power at your company. Continue Reading

  • green data center

    A green data center is a repository for the storage, management, and dissemination of data in which the mechanical, lighting, electrical and computer systems are designed for maximum energy efficiency and minimum environmental impact... (Continued) Continue Reading

  • Yellowdog Updater, Modified (YUM)

    Yellowdog Update, Modified (YUM) is a program that manages installation, updates and removal for Red Hat package manager (RPM) systems. YUM allows the user to update groups of machines without having to update each RPM separately. Continue Reading

  • Fedora

    Fedora is a popular open source Linux-based operating system.Continue Reading

  • fuel cell

    A fuel cell is an electrochemical cell that derives its energy from combustible substances such as hydrogen, methane, propane, methanol, diesel fuel or even gasoline... (Continued)Continue Reading

  • Categories of twisted pair cabling systems

    ANSI/EIA (American National Standards Institute/Electronic Industries Association) Standard 568 is one of several standards that specify "categories" (the singular is commonly referred to as "CAT") of twisted pair cabling systems, such as wires, ...Continue Reading

  • capacity on demand (COD)

    Capacity on demand (COD) is a purchasing option that allows companies to receive equipment with more computer processing, storage, or other capacity than the company needs at the time of purchase, and have that extra capacity remain unused and ...Continue Reading

  • motherboard tattoo

    A motherboard tattoo is a unique code that can be written in the basic input/output system (BIOS) of a computer to ensure that system restore or diagnostic compact discs (CDs) will work only on the machine or line of machines with which the CDs are ...Continue Reading

  • hot/cold aisle

    Hot aisle/cold aisle is a layout design for server racks and other computing equipment in a data center. The goal of a hot aisle/cold aisle configuration is to conserve energy and lower cooling costs by managing air flow.Continue Reading

  • Ubuntu

    Ubuntu (pronounced oo-BOON-too) is an open source Debian-based Linux distribution. Sponsored by Canonical Ltd., Ubuntu is considered a good distribution for beginners. The operating system is intended primarily for personal computers (PCs) but can ...Continue Reading

  • power usage effectiveness (PUE)

    Power usage effectiveness (PUE) is a metric used to determine the energy efficiency of a data center. PUE is determined by dividing the amount of power entering a data center by the power used to run the computer infrastructure within it. (Continued...Continue Reading

  • server sprawl

    Server sprawl is a situation in which multiple, under-utilized servers take up more space and consume more resources than can be justified by their workload.Continue Reading

  • S/390

    S/390 is IBM's large server (or mainframe) line of computer systems, which are marketed to the world's Fortune 1000 and many mid-size companies as a "tried-and-true" system with a history that stretches back to the System/360 of the early 1960s.Continue Reading