The Xerox Dorado was a high performance ECL personal workstation developed at PARC as a follow on research machine to the Alto. Programming environments on the Dorado included Interlisp-D, Cedar, and Smalltalk-80. The famous Smalltalk demo seen by Steve Jobs and others from Apple was done on a Dorado.

Dorado documentation at

Parallel Developments
Xerox Alto - Xerox Dorado - Three Rivers PERQ - ETH Lilith
Cedar Branch
Preceded by
Xerox Dorado Followed by
ANSI Common Lisp Branch
Influenced by
Xerox Dorado Influenced
Xerox Dorado Branch
Also includes
Xerox Dorado Included in