Digimon Analyzer

The Digimon Analyzer is a directory that give info about a digimon such as its name, level, attribute, type, and attacks. In the first Digimon series, it is accessed through Izzy's laptop computer. In the third, it's accessed through a tamer's D-Power Digivice.

Fire Rebellion Storyline
While not really used, the Digimon Analyzer is still accessed by Izzy's computer. In LOTM: Fire Rebellion: Season 6, the Digimon Analyzer is no long accessed trough a carried computer and is instead accessed through a Direct Neural Interface, or DNI for short.