Terms for Chapter 3 Discovering computers

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Terms for Chapter 3 Discovering computers
2013-09-09 19:35:05

Chapter 3
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  1. Virtualization
    is the practice of sharing or pooling computing resources, such as servers and storage devices.
  2. Server virtualization
    uses software to divide a physical server logically into many virtual servers.
  3. Server Farm
    is a network of several servers together in a single location.
  4. Mainframe
    Is a large, expensive, powerful server that can handle hundreds or thousands of connected users simultaneously.
  5. SuperComputer
    is the fastest, most powerful computer- and the most expensive.
  6. Terminal
    is a computer, usually with limited processing power, that enables users to send data to and/or receive information from a server, or host computer.
  7. Thin client
    is a terminal that looks like a desktop but has limited capabilities and components.
  8. Special-purpose Terminals
    perform specific tasks and contain features uniquely designed for use in a particular industry. Three widely used special-purpose terminals are point-of-sale terminals, ATM's, and self-service kiosks.
  9. POS terminal
    records perchases, process credit or debit cards, and updates inventory.
  10. Bar Code Reader
    is an input device that uses laser beams to read bar codes on products.