"Escom Inc... distributor of Microdata Minicomputer Systems.... Phoenix, Seattle, Portland, Spokane, Anchorage, and Vancouver, BC" giving their address as "12838 SE 40th Place, Bellevue, WA"
Andrew McCauley claims that the guys who formed Cosmos, had worked on Prime Information and so had written a PC version of Prime Information. They were encouraged to market it.
Mike Ruane, claims ("International Spectrum", March/April 2003) that Cosmos was founded in 1982, they attended International Spectrum, held in Reno that year, showed their demo product and got their first sales.
Mar 1983, purported first shipment of Revelation, according to Steve Kruse
Summary 1983, Project Rudolph begins, in which Microdata was attempting to provide a version of Reality on IBM PCs, and for that purpose employed the Cosmos team, apparently as contractors? [Note, the placename that Garrett cannot remember here is Lynnwood not Lindhurst -wsj]
(Source)
http://books.google.com/books?id=wS8EAAAAMBAJ&pg=PA55
Infoworld, 14 Nov 1983
http://books.google.com/books?id=fi4EAAAAMBAJ&pg=PP2
Infoworld, 24 Jan 1984
"The Spokesman-Review", 10 Feb 1984
"...Cosmos Inc. research center in suburban Lynnwood.... Morton-based Cosmos"
"The partners -- Roger Harpel, president, and Mark Peckham, Dave Ostby and his brother Paul, and Mike Nourse"
"Steve Kruse, marketing director...."
[Steve Kruse had been a journalist. According to Betty Erickson, he was a high-school friend of Rogers, and he joined Cosmos in 1983. Paul was attending the University of Washington. They met Mike in Idaho.]
[ Roger Harpel moved to Thailand about 1988/9 and disappeared. He reappeared in 2013 due to a complex legal dispute in Thailand (Source)]
In 1985 the marketing director for Cosmos was Steve Kruse, who in an article of that year states that Cosmos has been offering Revelation since March 1983.
http://sp.ntpcug.org/Newsletters/NTPCUG%20-%201986-01.pdf
Jan 1986 Roger Harpel at the North Texas PC Users Group meeting
http://books.google.com/books?id=X66gq0QCqacC&pg=PA164
PCMag, 24 Jun 1986
with Cosmos address at "19530 Pacific Hwy South, Seattle"
http://books.google.com/books?id=zzAEAAAAMBAJ&pg=PA11
Infoworld, 9 Mar 1987
an article quoting Steve Kruse and calling him "Cosmos vice president"
and quoting Jim Harding calling him "national accounts manager"
with the address at "3633 136th Place SE, Bellevue, WA"
http://books.google.com/books?id=yzAEAAAAMBAJ&pg=PA3
InfoWorld, 22 Jun 1987
"Mainframe Micros Inc of New York this week will announce that it has acquired Cosmos Inc..."
http://books.google.com/books?id=0DsEAAAAMBAJ&pg=PA17
InfoWorld, 24 Aug 1987
Now calling Steve Kruse of Cosmos "President"
but also stating "Jim Acquaviva, president of Cosmos' parent company, Revelation Technologies, Inc"
May 1988
David Ostby leaves Cosmos
http://books.google.com/books?id=KzoEAAAAMBAJ&pg=PT19
Address is now listed as "2 Park Avenue, New York City"
http://books.google.com/books?id=L1EEAAAAMBAJ&pg=PA50
1992 now putting Revelation in Stamford, Connecticut