There were two lisp machine manufacturers that evolved from an MIT lab, one was Symbolics (a company in which I owned stock, and for which a high school buddy worked for several years, and which was based in Chatsworth California for about 8 years) and Lisp Machines Inc, about which I know very little except to say that these companies were constantly at eachothers throats, and who's corporate heads were both former co-workers at MIT. If you want more details, I can accomodate by asking this old high school buddy. As for if any such machines remain, I imagine so, since for one, a Mac compatible version from Symbolics (an single board micro, plugged into the Mac backplane/motherboard) was available up to a few years ago I recall it, I will post an additional message. As a side note, the mathematics processor known as Macsyma (the original product - reverse engineered by Stephen Wolfram to produce Mathematica) was a lisp based product, and sold by Symbolics. As I understand, it is really Macsyma that gave birth to Symbolics, for their lisp machines were originally designed to support Macsyma applications. William R. Buckley -----Original Message----- From: Mike <dogas(a)leading.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Monday, November 30, 1998 1:59 PM Subject: Re: What's a Lisp Machine? over