Abstract: A connector includes a plug and a receptacle. The plug includes a main body, a hook, a pressing member, a plurality of conductive terminals and a first magnet. The first magnet being disposed on the main body. The main body defines a receiving cavity and a through hole therein. The hook has a base received in the receiving cavity and a curved end. The pressing member passes through the through hole. The base of the hook defines a recess therein for fitting the pressing member. The receptacle is detachably coupled to the plug. The receptacle defines a plurality of insertion holes and includes a second magnet. The plurality of insertion holes are for providing electrical connection by engaging with the plurality of conductive terminals. The second magnet is for maintaining a magnetic force repulsive to the first magnet when the first part and the second part are coupled together.

Abstract: A connector includes a plug and a receptacle. The plug includes a plurality of conductive terminals and a first magnet. The receptacle is detachably coupled to the first part. The receptacle defines a plurality of insertion holes and includes a second magnet. The plurality of insertion holes are for providing electrical connection by engaging with the plurality of conductive terminals. The second magnet is for maintaining a magnetic force repulsive to the first magnet when the first part and the second part are coupled together.

Abstract: An exemplary keyboard includes a row-and-column scanning matrix and a lock switch. The row-and-column scanning matrix includes a controller including a plurality of input ports and output ports, a plurality of keys electrically connecting the plurality of input ports to the plurality of output ports of the controller via a plurality of row conductive lines and column conductive lines when actuated. The lock switch connected in series with one or more of the plurality of keys is configured for disabling the one or more of the plurality of keys when opened.