The term "drum kit" seems to have come from England. It was first created in the 1700s. In the U.S., the terms "drum set", and "trap set" were more prevalent historically.
The individual instruments of a drum kit are struck by a variety of implements held in the hand, including sticks, brushes, and mallets. Two notable exceptions include the bass drum, played by a foot-operated pedal, and the hi hat cymbals, which may be struck together using a foot pedal in addition to being played with sticks or brushes. Although other instruments can be played using a pedal, the feet are usually occupied by the bass drum and hi hat. Percussion notation is often used by drummers to signify which drum kit components are to be played. A full size drum set without all the extras has a bass drum, floor tom, snare drum, tom-toms, hi-hat cymbals, a ride cymbal and a crash cymbal.
Various music genres dictate the stylistically appropriate use of the drum kit’s components. For example, in most forms of rock music, the bass drum, hi-hat and snare drum are the primary instruments used to create a drum beat. In jazz, however, the ride cymbal and hi hats (or brushed snare drum and hi hats) usually fill this role.