No, the original Display writers were dedicated
word processors. FWIW
IBM later sold software for the PC that emulated the Display
writer. As you
might guess it was called Display Write.
Not totally dedicated. IBM sold a port of the UCSD Pascal OS, and some apps
such as LogiCalc and some accounting software. Somewhere I think I might
have a brochure. This would have been around 1982(?). My recollection is
that it was an 8086, and the PC drew more than a little from its design.
Jim