in 2001, pioneer dj began producing the cdj-1000 cd player, making the use of digital music recordings with traditional dj techniques practical for the first time. as the 2000s progressed, laptop computers became more powerful and affordable. dj software, specialized dj sound cards, and dj controllers were developed for djs to use laptops as a source of music rather than turntables or cdjs. in the 2010s, like laptops before them, tablet computers and smartphones became more powerful &amp; affordable. dj software was written to run on these more portable devices instead of laptops, although laptops remain the more common type of computer for djing.