Personal Terminal

PET stands for PErsonal Terminal, but it can also stand for Personal Electronic Terminal. Some even call it the Personal Exploration Terminal. A PET is a handheld device that has countless features, ranging from cell phone and wireless email capabilities to television and database accessing, among other things. PETs are used for personal convenience as well as machinery maintenance with the process of jacking-in.

PET Models
There were 5 different types of PET's, with 2 upgrades of the PET. They usually are updated and/or redesigned during the game's time skip and the anime arcs.


 * Original PET: This is the first PET to have ever come out, which was simply known as a "PET". It was designed with a flip-open laptop-esque screen with its own keyboard, unique to this PET only, and it was held by a handle along the bottom, resembling the shape of a sign board on a post. It uses a retractable cord to jack-in. Though this PET did not appear in the anime, it appeared in the first 2 games and the early concept art.
 * Plug-in PET
 * Advanced PET
 * Progress PET
 * Link PET

Jacking In
Jacking In, or Plugging In (in Japan) is the term for connecting a PET to the Cyber Network. This allows the NetNavi to exit the PET and explore the Network either on his own, or to do a chore or carry out an order. Normally, humans are the ones who plug-in, but there have been records of Navis jacking themselves in.