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General Knowledge :: Technology

  1. Which is the most commonly used input device?

  2. A.

     Key board

    B.

     Mouse

    C.

     Joystick

    D.

     Scanner


  3. The principal electronic payment system for electronic Commerce is-

  4. A.

     credit

    B.

     Digital wallet

    C.

     Electronic Cheque

    D.

     All of above