Cara (Will's sister) and the nice Erudite members tell Tris that there's no need to put the data she wants on a disc. She can store it in the cloud. Well, they call it a "data network" (40.5), but that's basically what it is.
The Erudite decide to play the Q to Tris's James Bond and give her some nifty gadgets. One shatters windows, and the other is basically a taser.
Tris is warned that "it would be extremely painful, and then it would disable you" (40.47) if she touched it.
On the way to the city, Tris asks Fernando, an Erudite, if he knew Caleb. He did, and he tells Tris not to judge him too harshly.