Most currently existing window systems are built for computers with
special purpose hardware which they directly control.  Yet many larger
computers which are used for conventional timesharing or as special
application servers, have neither the hardware required to implement a
sophisticated window system, nor have the software developed to support
such hardware were it available.  This thesis proposes a solution for
such systems: a remote window system protocol.  It allows an existing
computer with a window system (the workstation) to act as a server for
applications running on the host machine.  There are numerous advantages
to implementing a window system in this manner: no new hardware need be
developed for the host; minimal software development is required
(certainly less than development of a window system from scratch); the
host need not know any specifics of the workstation; and the host
application can be used without software changes from any type of
workstation which implements this protocol.  The protocol is built as an
extension to a standard virtual terminal protocol, and is itself quite
extensible.
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