Excess Adobe Photoshop Lightroom and the difference with the Ordinary

Lightroom whose full name Adobe Photoshop Lightroom is a software program made by Adobe that is specifically intended for the world of photography. This software is designed as an auxiliary tool for managing, processing and editing digital photos on computers. If so is not the same as the regular Adobe Photoshop? Of course different, because Photoshop is a graphics editing program. Therein lies