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  2. TRS-80 - Wikipedia

    en.wikipedia.org/wiki/TRS-80

    The TRS-80 Micro Computer System ( TRS-80, later renamed the Model I to distinguish it from successors) is a desktop microcomputer launched in 1977 and sold by Tandy Corporation through their Radio Shack stores. The name is an abbreviation of Tandy Radio Shack, Z80 [microprocessor]. [4] It is one of the earliest mass-produced and mass-marketed ...

  3. Carnot cycle - Wikipedia

    en.wikipedia.org/wiki/Carnot_cycle

    A Carnot cycle is an ideal thermodynamic cycle proposed by French physicist Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s. By Carnot's theorem, it provides an upper limit on the efficiency of any classical thermodynamic engine during the conversion of heat into work, or conversely, the efficiency of a refrigeration system in creating a temperature difference through ...

  4. Electrical engineering - Wikipedia

    en.wikipedia.org/wiki/Electrical_engineering

    Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph, the telephone ...

  5. Identity management - Wikipedia

    en.wikipedia.org/wiki/Identity_management

    User provisioning system. Identity management, otherwise known as identity and access management (IAM) is an identity security framework that works to authenticate and authorize user access to resources such as applications, data, systems, and cloud platforms. It seeks to ensure only the right people are being provisioned to the right tools ...

  6. Team Fortress 2 - Wikipedia

    en.wikipedia.org/wiki/Team_Fortress_2

    Team Fortress 2 ( TF2) is a 2007 multiplayer first-person shooter game developed and published by Valve Corporation. It is the sequel to the 1996 Team Fortress mod for Quake and its 1999 remake, Team Fortress Classic. The game was released in October 2007 as part of The Orange Box for Microsoft Windows and the Xbox 360, and ported to the ...

  7. Systems engineering - Wikipedia

    en.wikipedia.org/wiki/Systems_engineering

    Product Systems Engineering (PSE) is the traditional systems engineering focused on the design of physical systems consisting of hardware and software. Enterprise Systems Engineering (ESE) pertains to the view of enterprises, that is, organizations or combinations of organizations, as systems. Service Systems Engineering (SSE) has to do with ...

  8. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    Water quality. A rosette sampler is used for collecting water samples in deep water, such as the Great Lakes or oceans, for water quality testing. Water quality refers to the chemical, physical, and biological characteristics of water based on the standards of its usage.

  9. Nondestructive testing - Wikipedia

    en.wikipedia.org/wiki/Nondestructive_testing

    Nondestructive testing. X-ray vault used in Radiography. Nondestructive testing ( NDT) is any of a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. [1] The terms nondestructive examination ( NDE ), nondestructive inspection ( NDI ...