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Technical support (often shortened to tech support) refers to a plethora of services by which enterprises provide assistance to users of technology products such as mobile phones, televisions, computers, software products or other information, electronic or mechanical goods. In general, technical support services address specific problems with a product or service rather than the provision of training, customization, or other support services. Most companies offer technical support for the products they sell, either freely available or for a fee. Technical support may be delivered over by e-mail, live support software on a website, or a tool where users can log a call or incident. Larger organizations frequently have internal technical support available to their staff for computer-related problems. The Internet can also be a good source for freely available tech support, where experienced users help users find solutions to their problems.[not verified in body] In addition, some fee-based service companies charge for premium technical support services