The Batcave serves as Batman's command center, where he monitors all crisis points in Gotham and the world. The cave's centerpiece is a supercomputer whose specs are on par with any of those used by leading national security agencies; it permits global surveillance and also connects to a massive information network as well as storing vast amounts of information, both on Batman's foes and his allies. A series of satellite link-ups allows easy access to Batman's information network anywhere around the globe. The systems are protected against unauthorized access, and any attempt to breach their security immediately sends an alert to Batman or Oracle. The Batcomputer is powerful beyond the realm of realistic computer systems, as Alfred Pennyworth is able to program a replication of himself (his "brain algorithms") that is capable of conversation.
Additionally, the cave features state-of-the-art facilities such as a crime lab, various specialized laboratories, mechanized workshops, personal gymnasium, a vast library, parking, docking and hangar space (as appropriate) for his various vehicles as well as separate exits for each type, trophies of past campaigns and a large bat colony. It also has medical facilities as well as various areas used in training exercises for Batman and his allies.
The cave houses Batman's vast array of specialized vehicles, foremost being the famous Batmobile in all its incarnations (mostly for nostalgia, but also for contingencies, as all are serviceable and in excellent working condition). Other vehicles within the complex include various motorcycles, air- and watercraft such as The Batwing, a single-occupant supersonic jet, and the Subway Rocket.
The cave is sometimes powered by a nuclear reactor, but most often by a hydroelectric generator made possible by an underground river. Batman has incorporated safeguards against earthquakes and even a potential nuclear catastrophe, outfitting the cave as a virtual bomb shelter or an enhanced panic room. The city's earthquake redesigned the caverns of the Batcave, with eight new levels now making up Batman's secret refuge of high-tech laboratory, library, training areas, storage areas, and vehicle accesses. It also includes an "island" computer platform (built on the spot where the Batmobiles' hydraulic turntable once was) with seven linked Cray T932 mainframes and a state-of-the-art hologram projector. There's also a selection of retractable glass maps within the computer platform. Kevlar shieldings are prepared to protect the cave's computer systems from its seismic activity. With the cave's various facilities spread amid limestone stalactites and stalagmites, Batman built retractable multi-walkway bridges, stairs, elevators, and poles to access its facilities.