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  2. Geek Squad - Wikipedia

    en.wikipedia.org/wiki/Geek_Squad

    Geek Squad, Inc. is a subsidiary of American and Canadian multinational consumer electronics corporation Best Buy, headquartered in Richfield, Minnesota.The subsidiary was originally an independent company founded by "Chief Inspector" Robert Stephens on June 16, 1994, and offers various computer-related services and accessories for residential and commercial clients.

  3. File:'06-'07 Ford E-350 Cutaway Best Buy Geek Squad.JPG

    en.wikipedia.org/wiki/File:'06-'07_Ford_E-350...

    2006-2007 Ford E-Series Geek Squad Best Buy photographed in Montreal, Quebec, Canada. Date: 06/17/10: Source: Own work. Author: Bull-Doser: Permission (Reusing this file)

  4. Best Buy - Wikipedia

    en.wikipedia.org/wiki/Best_Buy

    Best Buy also expanded its Geek Squad market tests in March, opening Geek Squad precincts in FedEx Kinkos stores located in Indianapolis and Charlotte, North Carolina. [48] In October 2007, Best Buy became the first consumer-electronics retailer to exit the analog television market, carrying only digital products that became mandatory in June ...

  5. DC-to-DC converter - Wikipedia

    en.wikipedia.org/wiki/DC-to-DC_converter

    A DC-to-DC converter is an electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power converter . Power levels range from very low (small batteries) to very high (high-voltage power transmission).

  6. Push–pull converter - Wikipedia

    en.wikipedia.org/wiki/Push–pull_converter

    Push-pull converter (+12V → ±18V; 50W) as potted module. ① transformer; ② and ③ electrolytic capacitors vertical and horizontal mounted; ④ discrete circuit board in through-hole technology A push–pull converter is a type of DC-to-DC converter , a switching converter that uses a transformer to change the voltage of a DC power supply.

  7. Digital-to-analog converter - Wikipedia

    en.wikipedia.org/wiki/Digital-to-analog_converter

    IBM Selectric typewriter uses a mechanical digital-to-analog converter to control its typeball. A one-bit mechanical actuator assumes two positions: one when on, another when off. The motion of several one-bit actuators can be combined and weighted with a whiffletree mechanism to produce finer steps. The IBM Selectric typewriter uses such a ...