The board SBC Italian MK-82 was a clone of the original Ferguson BigBoard I, which was designed to fulfill the function of all-purpose programmable computer. Subsequent releases of additional items of US holders of the original card in the journal Microcornucopia cloner has allowed the Italian to make interesting and unique changes to get what in Italy was called MK-83: a card extraction identical to the MK-82 that were been implemented or Z80B Z80A processor operating at the clock frequency of the system at 4 or 6 MHz, a floppy disk controller to enable the management of double-sided double-density drives with either 8 "by 5.25" with its 50pin IDC connectors and 34pin onboard, and the ability to have an onboard memory of 256Kbyte (by 32 Ics type 4164).

They existed at least 3 different card MK83 in turn created as a variation from the card MK82 copy of the original American Ferguson Bigboard 1. What follows are the differences:

MK83 ver. A (former CNR-Pisa):

MK83 ver. B ("paid" by Fabio di Modena) .

MK83 ver. C (only wiring diagrams):

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Ade MK83 Ferguson BigBoard I Kyber Minus Bigboard_set82 Ampro Little Z80 Board

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