This is the first computer I bought with my own money, as a college student. At the time this was the perfect system for a school work...no more waiting in line in the computer lab for an IBM XT or MAC SE with the other students. The Model 8525 first appeared in the Spring 1987, just after the initial PS/2 launch.
Model 1391472 model M "space saver keyboard" had no number pad.
This system shipped with DOS 3.3. I purchased the optional Windows 1.04 "Collegiate Kit" that had early versions of Winwrite and winpaint programs. To print I used an IBM ProPrinter II.