An example method occurs at a computing system comprising one or more processors, memory, a first housing that includes a primary display, and a second housing at least partially containing: (i) a physical keyboard and (ii) a respective key that is adjacent to at least one key of the physical keyboard and the respective key including a fingerprint sensor. The method includes receiving an input at the respective key, and in accordance with a determination that the input at the respective key is an input of a first type, initiating a process for logging out, restarting, and/or powering-off portable computing system. The method also includes that receiving an input at the respective key, and in accordance with a determination that the input at the respective key is an input of a second type, performing an operation associated with a fingerprint detected by the fingerprint sensor associated with the respective key.