In the field Scully uses a laptop from “Manax”(?) that has a blue display. Maybe VFD or something with a backlight, or perhaps just a prop?
@th a while back gillian anderson gave an interview where she admitted she lied about her age to get that part and gave a bunch of hilarious backstory about it all :D
In the FBI office they have generic desktops and some sort of terminals. One lucky employee has a laptop, possibly a Toshiba T1200.