October 1, 1974: DG announces the Eclipse...
Suddenly other computers do not seem so bright!
The small form factor S/100 "S" for "Scientific"
and the larger form factor S/200.
Typical configurations included rack-mounted computer with magnetic tape and disk drive.
1975: A year later the C/300 is delivered "C" for "Commercial" with commercial instruction set enhancements.
1976: The main memory capacity is doubled in the S/230 and C/330 delivered the next year.
1977: The Eclipse S/130 consolidated most features into a new "baseline" package. It was also the first machine with front console LEDs!
1978: The maturing Eclipse line was expanded with the S/250,
and the C/350 which had I/O processor options,
and the C/150 - the S/130 derivative with "Commercial" instruction set enhancements.
The M/600 represented the ultimate reach of the Eclipse architecture by including demand paging hardware support.
1979:The Eclipse S/140 re-implemented the Eclipse design with technology shared with the Nova 4. But sadly it had no console lights and switches.
1982: The Eclipse design was reduced to a "microEclipse" chipset and packaged in small "micro product" form factor S/20 and
and "standard" form factor S/120 configurations.
1984: The microEclipse was used as the processor for the new separate Desktop Generation product line - an attempt to compete with the new thing called a "PC".
1984 and 1985: The last of the Eclipse systems - the S/280 and C/380 - used technology refresh and advanced design to create the fastest Eclipses ever produced.
1988: The last Eclipse product was the microEclipse based DG/500 which had a desktop form factor.
The DG Lineage: first the 16-bit Nova,then the 16-bit Eclipse,finally the 32-bit MV.
So the story continues...
