The present invention provides an electronic apparatus and an electronic system. The electronic apparatus includes: at least one programmable electric conductive unit configured to switch a good conductor mode and a normal conductor mode according to a control signal when it contacts with a second electronic apparatus so as to transmit predetermined information to the second electronic apparatus contacting with the electronic apparatus; a control unit configured generate the control signal having a predetermined frequency; and a feedback information receiving unit configured to receive feedback information transmitted by the second electronic apparatus, the feedback information being transmitted in response to the reception of the predetermined information.