http://en.wikipedia.org/wiki/ZX_Spectrum
So, What did I win?
EDIT: (
Info below..)
I searched for the NEC D780C-1, found a reference.. found the Wikipedia page.. found the picture used by TerryP.
Here are the details I could make out based on that largely unclear image posted...
ASTEC International
NEC D(0) 23I(L/1)2B(8)C 057
NEC D780C
5RC11(LL)9E