IBM PC replica

On Thu, 15 Nov 2012, Ethan Dicks wrote: Well, a few changes, :-) the ORIGINAL 5150 used 4116's not 4264. and, the first row was soldered in. It was 16K - 256K. LATER 5150's, such as THIS "64KB - 256KB CPU" used 64K chips, AND could be trivially set/modified for 2 rows of 256K plus 2 rows of 64K. If one were to make an Apple][ replica, should it be a replica of the IIE or IIGS? If we're going all-out for the "nostalgia of the earliest one", then shouldn't we be replicating the earliest one? Or at least, the earliest MODEL? They're talking about a board from 1982. The ORIGINAL 5150 was released in August 1981. They have, instead, made a 1983 5150. Why are they running a 1983 copy of PC-DOS 2.10? (They probably got THEIR first 5150 in 1983) Their BASIC ROMS are real IBM, (C) 1983, and all labeled #5! BIOS ROM is currently replaced with a 28 pin chip labelled "DIAG ROM" (Like the Todd Fischer one?) I'm not concerned with the date codes of the chips, but the content of the ROMs changed. [slightly] When they release it, what ROMs are they going to ship? BASIC and BIOS infringement? Or, will they modify the circuit for EPROMs and ship a non-infringing [but SLIGHTLY incompatible] BIOS with NO BASIC??!? Although IBM published circuit diagrams, they were certainly NEVER "Open source"! -- Grumpy Ol' Fred cisin at xenosoft.com