The term DJ was first used to describe a radio announcer who will introduce and play popular gramophone records. The recording on this media, also known as “disc” which in this industry is played by the announcer, radio announcer, hence the name disc jockey and then more familiarly known as DJs or deejays. Now due to various factors, including the selected music, listeners, tuning performance, media used and the development of sound manipulation, has produced various DJ techniques.

Physical action rather than a DJ is to select and play the voice recordings called deejaying, or DJing and scope of the perfection of the play is simply a series of recordings (related pengacaraan, or make a playlist, to manipulate the recordings, using various techniques such as audio mixing, cueing, phrasing, cutting, scratching, and beatmatching, or often also refers to compose original music.

The most basic equipment needed for a DJ to carry out the action consists of:

- Sound recordings in various mediums (such as LPs, CDs, MP3 files, etc.)

- Most do not have two kinds of equipment for playback (playback) sound recordings and for the purpose of choosing to play back recordings back and forth (such as record players, compact disc players, mp3 players)

- A Sound System to strengthen and enlarge the volume (like a portable audio system, radio wave broadcaster)

- dj repair

Also, other supporting equipment such as a mixer (mixer) is used to align two or more playback devices. a microphone that is used to strengthen the human voice, and the headphones used to listen to recordings while playing

another player, without losing control of the sound you listen to his listeners, is very necessary. Various kinds of equipment can also be added, including samplers, drum machines, effects processors, slipmats, and Computerized Performance Systems.