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  1. Technical support - Wikipedia

    en.wikipedia.org/wiki/Technical_support

    Technical support, also known as tech support, is a call centre type customer service provided by companies to advise and assist registered users with issues concerning their technical products. [1] Traditionally done on the phone, technical support can now be conducted online or through chat. At present, most large and mid-size companies have ...

  2. Internet service provider - Wikipedia

    en.wikipedia.org/wiki/Internet_service_provider

    Internet connectivity options from end-user to tier 3/2 ISPs. An [ 1 ]Internet service provider (ISP) is an organization that provides myriad services related to accessing, using, managing, or participating in the Internet. ISPs can be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.

  3. Technology readiness level - Wikipedia

    en.wikipedia.org/wiki/Technology_readiness_level

    Technology readiness levels (TRLs) are a method for estimating the maturity of technologies during the acquisition phase of a program. TRLs enable consistent and uniform discussions of technical maturity across different types of technology. [1] TRL is determined during a technology readiness assessment (TRA) that examines program concepts ...

  4. Tier 2 network - Wikipedia

    en.wikipedia.org/wiki/Tier_2_network

    Tier 2 network. A Tier 2 network is an Internet service provider which engages in the practice of peering with other networks, but which also purchases IP transit to reach some portion of the Internet. [1] Tier 2 providers are the most common Internet service providers, as it is much easier to purchase transit from a Tier 1 network than to peer ...

  5. List of U.S. security clearance terms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._security...

    T3 or T3R - Tier 3 or Tier 3 Reinvestigation, now replace all NACLC. T5 and T5R - Tier 5 or Tier 5 Reinvestigation, now replace SSBI and SBPR respectively. Yankee White – An investigation required for personnel working with the President and Vice President of the United States. Obtaining such clearance requires, in part, an SSBI.

  6. Electronic Key Management System - Wikipedia

    en.wikipedia.org/wiki/Electronic_Key_Management...

    The Electronic Key Management System (EKMS) is a United States National Security Agency led program responsible for Communications Security (COMSEC) key management, accounting, and distribution. Specifically, EKMS generates and distributes electronic key material for all NSA encryption systems whose keys are loaded using standard fill devices ...

  7. Deployment environment - Wikipedia

    en.wikipedia.org/wiki/Deployment_environment

    In software deployment, an environment or tier is a computer system or set of systems in which a computer program or software component is deployed and executed. In simple cases, such as developing and immediately executing a program on the same machine, there may be a single environment, but in industrial use, the development environment (where changes are originally made) and production ...

  8. Internet of things - Wikipedia

    en.wikipedia.org/wiki/Internet_of_things

    e. Internet of things (IoT) describes devices with sensors, processing ability, software and other technologies that connect and exchange data with other devices and systems over the Internet or other communication networks. [1][2][3][4][5] The Internet of things encompasses electronics, communication, and computer science engineering.