Yes, I believe swordtart is correct.
Using an Expert system requires a computer (with a sophont interface), interface software, and some Expert software.
The wafer jack is the computer, and it can talk to the user via thought. More advanced versions are the Neural Link and the Neural Jack, that can access the users neural system directly, hence move the users limbs.
Interface software can be
- Intelligent Interface: the user does the work, the computer helps.
- Digital Friend: a more social Intelligent Interface.
- Agent: an AI, the computer does the work.
- Intellect: a more social AI, the computer does the work.
The Expert software can either:
- Give the user a DM+1 on a task,
- Give the user the skill to perform the task, or
- Give an Agent the skill to perform the task without user input.
How the Expert software can help the user is limited by the way it interfaces with the sophont, i.e. the computer hardware. A text interface is more limited than a graphical interface, that is in turn more limited than a neural interface.
With a text interface (terminal, PC, Wafer Jack) it can help the user with text-based tasks, codified as INT/EDU tasks.
Specialised interfaces are somewhat fuzzy, and up to Referee fiat.
With a neural interface it can move the users limbs to perform the task, helping you with anything.
Examples:
An Expert system on a Wafer Jack can help you with paper work, maths, or languages. It cannot help you shoot or jump.
An Expert system on a smart scope can help you shoot, but nothing else, but that is my interpretation.
An Expert system on a Neural Jack can help you with anything, and with Agent software even do it for you while you concentrate on something else.
For those interested in efficiency, a TL12 Neural Comm is arguably a better option than a Wafer Jack. It is cheaper and allows thought controlled interfacing (at up to 5km) to a more powerful computer that can have the the normal infinite software storage, ...
Quite, but do you really want something with data comm capability to directly control your neural system, hence your body? If you go to a high enough TL world script kiddies might be able to hack you for fun...