What computer is the keyboard from?

Question

Iron

I got this keyboard. I can't figure out what it was taken from.

Answer 1

The presence of color designations in the top row and the Symbol Shift button is, of course, Spectrum.
The Ext Mode button is definitely not the 48Kb model anymore, it appeared on the 128K model.
Further, a short search through the pictures gives the result - Kvant-BK MC0530, also known as "Pentagon".
Exactly the same keyboard was used in other models that were no longer mass-produced, but by all sorts of cooperatives, including those used in models with 512K memory, which already had a system unit and a separate keyboard.

Answer 2

Delta-S "locally produced (Cheboksary)

Answer 3

Late modification of a Spectrum.

Answer 4

I met this on the Russian Spectrum many years ago, in my opinion it was called robotics.