From: "Bill Degnan via cctech" <cctech at classiccmp.org>...but I bet
is more like 1976-77. What is the CPU type 1802 or something else?
It's definitely an 1802 family CPU, not sure of exact model, but i'll
find that out later when i tear it down (and document/post it here).
However, it's much newer than '77. The "MicroDisk" part of the name
refers to the two early Sony 3.5" drives mounted in the front of the
machine, so it dates from about 1984. It uses RCA Microboard cards, so
fundamentally it's very similar.
Here's a picture i took of it shortly after unboxing: