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  2. Jerrold Electronics - Wikipedia

    en.wikipedia.org/wiki/Jerrold_Electronics

    The company was one of the earliest pioneers of community antenna television systems (cable television). The company headquarters was located at 401 Walnut Street in Philadelphia, Pennsylvania. Shapp sold the company to General Instrument in 1967. However, the Jerrold brand name continued to be used on equipment into the 1990s. [citation needed]

  3. Point of sale display - Wikipedia

    en.wikipedia.org/wiki/Point_of_sale_display

    A point-of-sale display (POS display) is a specialised form of sales promotion that is found near, on, or next to a checkout counter (the "point of sale"). They are intended to draw the customers' attention to products, which may be new products, or on special offer, and are also used to promote special events, e.g. seasonal or holiday-time sales.

  4. Wall box - Wikipedia

    en.wikipedia.org/wiki/Wall_box

    As noted, a few wall boxes are, confusingly, free-standing, such as that outside Vollams Newsagents (formerly a post-office) in Gloddaeth Street, Llandudno. These large A size boxes were designed specially to be free-standing and include additionally, a large cast-iron base and an attractive pedimented top surmounted by a ball.

  5. Converter/descrambler - Wikipedia

    en.wikipedia.org/wiki/Converter/descrambler

    A Combination Converter/Descrambler is generally called a Set-top box or STB it is a single (one-piece) system installed in a single cabinet and represents a single component that is capable of descrambling premium services, like HBO or Showtime, pay-per-view cable channels., Video on Demand, Games or other specialty pay services, and ...

  6. History of display technology - Wikipedia

    en.wikipedia.org/wiki/History_of_display_technology

    Electrically operated display devices have developed from electromechanical systems for display of text, up to all-electronic devices capable of full-motion 3D color graphic displays. Electromagnetic devices, using a solenoid coil to control a visible flag or flap, were the earliest type, and were used for text displays such as stock market ...

  7. Digital television adapter - Wikipedia

    en.wikipedia.org/wiki/Digital_television_adapter

    A digital TV converter box. A digital television adapter (DTA), commonly known as a converter box or decoder box, is a television tuner that receives a digital television (DTV) transmission, and converts the digital signal into an analog signal that can be received and displayed on an analog television set.