Jumba's computer is a machine that Jumba constructed (or upgraded) to show pictures of the experiments and their information. It can also reveal an antidote for any experiment's power or effect on a person. The experiment's info can also be shown on Lilo's computer and told on Gantu's experiment analyzer.
Jumba's computer displays crude 2-D representations of the experiments, along with information on them and occasionally antidotes for the experiments' effects. Jumba also keeps self-made video journals explaining his thoughts or the results of his illegal experiments (as displayed in "Frenchfry").