Akihabara is a part of Tokyo. Most buildings in Akihabara have something to do with computer technology, e.g., video arcades and internet cafés. Because of this, many geeks visit Akihabara. During the Edo period (1603 - 1868), it was a residence of many lower-class samurai Akihabara was known as a high tech neighborhood since the early 20th century.
Many buildings are specialised for a branch of computer technology, e.g. nanoprobes. (Dragon Ball Z vs. Star Trek: The Way of Infinity)
During the year 2392, Ibo's brother wanted to give some stolen Starfleet documents to an agent of the Tal Shiar, but he was attacked by spies of the Kzinti. (Dragon Ball Z vs. Star Trek: The Way of Infinity)