user to use the pc mode to interact with the television mode such as by downloading information about a particular program from the internet it will also permit a user to use the television mode to interact with the pc mode such as by having a small television window displaying a show or video while performing normal pc operations a user can also readily switch between pc mode and television mode so that for example during commercials a user can readily switch from television mode to computer mode to perform some pc operations until the television program resumes at which time the user can switch back to television mode security device 18 described in more detail herein below generally prevents or limits access to select persons to be able to switch to or utilize the pc mode of tv pc convergence system 10 for example when powered up tv pc convergence may by default enter only television mode or only enter television mode with limited access to the computer mode that is there is restricted access to parts of the computer that are user sensitive a user must pass a security check to be able to further utilize computer 16 once passed the security check a user can readily flip between television mode and computer mode until security device 18 is reset the reset could occur when tv pc convergence system 10 is re powered up or after a time limit has elapsed as further illustrated in fig1 tv.