Hallo allemall > W dniu 2011-10-30 19:29, Michał pisze: > But playing with machines that are little known, that is really interesting. And that's why I'm playing with those newer Commodore PCs. The older ones, the PC10 and Colt, are more or less IBM compatible IMHO (I haven't really investigated them yet). But the PCxx-III are less compatible: you cannot use a PC keyboard or vica versa. Lately my 27 years old original IBM keyboard died under my hands and I plugged in the one of my PC10-III but the IBM board didn't recognize it :( I found an older C= keyboard, probably of the Colt, and that one was accepted. I already knew that the PC10-III didn't accept the IBM keyboard as well. If you look at the source code of the BIOS you'll see some strange things related to the handling of the keyboard: the use of the registers in the range $060-$063 is in some cases completely different from the ones of the IBM plus there is an extra reguster at $230 involved. I even had the idea that the PC10-III used an AT-keyboard (the layout is the same) but it didn't accept an AT-keyboard clone either. Then I remembered that some years ago I connected a PC30-III and PC40-III (80286) to my KVM switch, which was accepted by various 80286-, 80386- and newer IBM-clone boards without any problem, and it wasn't accepted by these C= PCs as well. AFAIK I haven't any technical info about my C= PCs. Anyone having this kind info, please feel free to send it to me! Many thanks in advance! -- ___ / __|__ / / |_/ Groetjes, Ruud \ \__|_\ \___| URL: Ruud.C64.org De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij overgebrachte virussen. APG Algemene Pensioen Groep NV is gevestigd te Heerlen en is ingeschreven in het handelsregister van de Kamer van Koophandel Limburg onder nummer 14099617 The information contained in this e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail; please delete in this case the e-mail and do not disclose it's contents to any person. We don't accept liability for any errors, omissions, delays of receipt or viruses in the contents of this message which arise as a result of e-mail transmission. APG Algemene Pensioen Groep NV is registered in the trade register of the Chamber of Commerce Limburg, The Netherlands, registration number: 14099617 Message was sent through the cbm-hackers mailing listReceived on 2011-10-31 13:00:08
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