Olivetti PC-1 BIOS ROM dumps

[itmuseum]

Hi.
Find rom dumps in the attachment
BIOS v.1.07 - EPROM AM27128A
second ROM - M2764
View attachment Olivetti PC1 BIOS v.1.07.ZIP

 

[1ST1]

Bios 1.07 looks quite old.

View attachment olivetti prodest pc1 BIOS rev1.21.zip

 

[dhau]

Hi folks, thanks for dumping the bios. If possible, can you take photos of the rom chips and post it here too? Thanks

 

[VileR]

second ROM - M2764

Ha, the 8x8 charset in this one is the Hebrew code page (862). Nice find.

Was this sourced here in Israel? I don't think I've *ever* seen a PC-1 around here.

 

[modem7]

How confident are we that the BIOS versions are 1.07 and 1.21 ?

I ask because when I look in the "1.07" BIOS code, I see

Resident Diagnostics
Rev 1.07 12/10/88

and in the "1.21" BIOS code, I see

Resident Diagnostics Rev 1.21

At face value, 1.07 and 1.21 appear to be referring to the version of the resident diagnostics portion of the BIOS.

 

[1ST1]

That version display is about the whole BIOS at Olivetti. It's like this on every machine with Olivetti's own BIOS.

 

[itmuseum]

Exactly. It has Israel keyboard
https://twitter.com/sncmuseum/status/1321833359736274946/photo/1