Dual Core is a hip hop duo composed of American rapper int eighty (David Martinjak) and British producer c64 (Chris Hunger).

Martinjak, from Cincinnati, met Hunger, from Manchester, in 2003 on an online music forum.

Hunger produces beats and sends the files to Martinjak, who records his vocals and uploads them to a server, Hunger downloads these files and uses them to mix the tracks.

[3] The song "All the Things" appears in 2016 video game Watch Dogs 2. int eighty's stage name is based on an x86 assembly instruction ("technically 'int 0x80.'")

while c64 refers to both the Commodore 64 computer and a combination of his first initial and his height (6 ft 4 in).