Learning Curve

Learning Curve is a quest in Fallout 4. It is a Radiant quest chain with multiple locations being targeted.

Quick walkthrough

 * 1) Accept a patrol from Quinlan
 * 2) Go to the airport to get the Scribe companion
 * 3) Go to the target area and bring the Scribe to the marked terminal
 * 4) Return to Quinlan

Boston mayoral shelter
The shelter is west of Fort Hagen, there's a terminal in the raised office outside that can unlock the door. Once inside there's a laser turret behind the security gate and two more near the terminal.

Poseidon Reservoir
The reservoir is on the west side, south of Fort Hagen and north of Natick. The terminal needed is just inside and the the right of the door.

Gunners plaza
South of Milton General hospital and west of Hyde Park this place is the Gunner's HQ, so it appropriately crawling with them. Fight through the front door, make your way to the other side of the entry hall, go around the divider and take the right hall at the split, go into the first room, up the stairs and through the door in the corner. The terminal is in the corner of the room.

South Boston military checkpoint
Located west of The Castle and east of Big John's salvage. The terminal is in the west building. The building has a suit of power armor locked by an expert terminal behind it.

Bugs
The Scribe may not interact with the terminal when you bring them to it. IF that happens reverting to a previous save BEFORE entering the shelter should fix it, alternately leaving, waiting 3-4 days and returning may fix it as well.

One way to fix the bug is to bring up the console, target the scribe and type in "disable" and then "enable".