is a simple shared blackbord written in tcl.
It runs on a single computer,
and opens windows on multiple displays;
all communication is via X protocol.
All participants of a conversation should do
They can draw curves and broken lines with mouse,
and type texts.
Greyboard has several advantages as compared to the standard UNIX talk:
- Not only text but also simple drawings can be used
- More than two persons can take part in the discussion
- Nothing is deleted automatically;
if you don't delete anything by hand,
you have a complete transcript of the discussion at the end