The Order of Secrets
Catalysts are devices that hold ‘inscribed’ abilities, basically Hacks. The energy to use them comes from the user, but this allows people with access to hidden knowledge to use Hacks without having to learn either the World Hacking skill or the ability itself.
Classic ones used a variety of methods to hold the information for the hack. These are what spawned all the legends of magic items. A Talisman, Pendant, or Wand could typically only hold one Sequence and it could not be changed without creating a new item. Later Catalysts like a clock work ‘box’ with special inscribed ‘rods’ could hold two or three sequences, one to a rod, and the rods could be switched out.
Modern Catalysts are special digital devices that can look like many different pieces of electronics, including cell phones and smart watches. These come in two forms: General Devices (GD) and Specific Devices (SD). General Devices keep ‘Sequences’ as pure ‘software’ and the circuits generate the proper sequence when activated. These can keep dozens of moderately powerful Hacks, bu they are slower to activate. Specific Devices use replaceable ‘chips’ each with it’s own Hack. This makes them fast and powerful, but four to six is the max they can handle and you have to plan ahead.