ABSTRACT
This chapter focuses on control actions and the human responses that are most proximal to them. The first section describes the major issues that affect human response times, and concludes with an inventory of psychomotor skills; many of the latter extend beyond pushing buttons or turning knobs. Types of tactile machine controls are considered next, followed by issues pertaining to the complexity of the control actions themselves. Voice control is considered in the final section of the chapter. More controllers that are particularly germane to computer systems are covered in Chapter 11.
