in a room higher up that can only be entered through a window.
Go to the top floor and exit onto the roof at the opposite end to where Borov is (or was!). Turn left onto the roof of the corridor connecting the two buildings. Now look back at the side of the building that you just left. Just below you there is a builder's cradle with a crate on it, next to a boarded-up window.
[You must be registered and logged in to see this link.]Shoot the crate and the boards, jump down onto the cradle and enter the window. The computer is a large device against the wall on the right. Be sure to pick up and read the book on the floor nearby.
There are some game guides here:
[You must be registered and logged in to see this link.] Please note that Stalkersoup is constantly evolving, and some parts of these guides may now be out-of-date.