Perspecta Software was a start-up company founded in 1992 by
[John Ousterhout] and [Larry Rowe]. Its first, and only, product
was ''Perspecta Presents!'', software for Unix workstations to
create and display presentations. (Think [PowerPoint]!)

The product was [Tcl/Tk]-based, even though the [canvas] [widget]
had not been released at the time.  A similar widget to the
canvas, called a ''spot'' widget, was embedded in the executable.

A paper on the language [Rush] [http://number-none.com/blow/papers/rush_tcl94.pdf], a derivative of Tcl, states:
 in Tcl, the programmer is forced to write such functions in C, negating some of the benefit of using Tcl in the
 first place. For example, the Perspecta Presents! slide-making program consists of ~29,000 lines of C code and
 only ~13,000 lines of Tcl code.

There is one example of a presentation made with Perspecta Presents! (version 1.09). It was made by [JO] and is a talk about Tcl back in 1993: http://www.see.ed.ac.uk/~dil/tcl/over.2up.ps

There is some old information about Perspecta Presents!
at http://www.rpi.edu/dept/rcs/packages/ppres/1.10/ containing much of the library Tcl code, some pictures. There are also executables of SPARC and AIX versions.

Several [Tcl'ers] would be interested, for historical reasons, if
the code could be released.
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[Category Company]