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
They even had an advertisement in an issue of "Workstation" back in 1992 or 1993.
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
], 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.
would be interested, for historical reasons, if the code could be released.
I had a license for Perspecta Presents! back in the 90's - it was indeed a product with a lot of potential.
Re the source code - I had a discussion with Larry Rowe at OSCON in 2001 and I seem to recall him saying the source code was still around and might be available if someone was willing to have a look (I reserve the right to be wrong on this :)) - stevel