Artifact Details


Living with ECHO-IV

Catalog Number



Moving image


Sutherland, James F.

Biographical Notes

There are two James Sutherlands involved with the Computer History Museum. This James (F.) Sutherland is the creator of ECHO, not the CHM docent. [AAT 2018-01-11]




From the program of the event:

"While searching for a title, Jim remembered the radio phrase, “Return with
us now to those thrilling days of yesteryear...” and thought “The Lone Computer
Ranger and Pocahontas” might work. Then, he remembered the 2004 movie
“Flight of the Phoenix” in which a group of passengers stranded in the desert after
their plane went down, put together a small plane from pieces of the damaged
plane and fly to safety. “Flight of the ECHO-IV” didn’t sound very catchy, so he
settled on simply, “Living With ECHO-IV”.
In 1955, Jim and Ruth came to Pittsburgh after they graduated from the
University of MO. Jim with BS in Electrical Engineering, and Ruth with BS in
Home Economics Education. Jim had been hired by Westinghouse in spite of an
ROTC obligation to serve four years of active duty and eight years in the reserves.
After only six months on the Graduate Student Course, Jim received orders
to report for active duty in the USAF. He and Ruth returned to the Westinghouse
GSC in 1959, and after receiving his Westinghouse five-year pen in 1960
(probably a record), Jim began work at the Westinghouse New Products
Laboratories at Cheswick, PA.
Jim was assigned to work in the logic group, building the prototype of the
Westinghouse PRODAC-IV (Programmed Digital Automatic Controller)
computer. Jim was responsible for design of the Control Unit and Indexing Unit.
The computer used transistorized NOR (Not-OR) logic elements made by
Westinghouse in Buffalo. Unfortunately, some of the elements failed randomly
after the system warmed up. After two frustrating years, it was decided to ship the
prototype to a power plant in New Jersey that urgently needed it to run their new
turbine generator.
Two years later, cabinets filled with faulty PRODAC circuit boards were
returned to the laboratory at Westinghouse Research, where Jim was working.
Management wanted to forget about the whole project and dispose of them as
quickly as possible.
Jim asked for a loan of the core memory system, power supplies, mounting
frames, and 120 of the circuit boards, so he could build a home computer. Jim's
boss thought that was great idea, and quickly signed a property pass.
Jim spent six months drawing schematics for the home computer that he
called ECHO-IV (Electronic Home Computing Operator). The "IV" in the name
came from the parts which were from the PRODAC-IV. Wiring the back frames
and installing the magnetic core memory system required six more months, and by
1966, the computer was finished, and running programs."




Gift of James F. Sutherland

Lot Number


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