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Re: If you could design a $300 homecomputer today, what would you choose?
- Subject: Re: If you could design a $300 homecomputer today, what would you choose?
- From: wbdesnoy@acs5.acs.ucalgary.ca (Byron Desnoyers Winmill)
- Date: 16 Jul 2001 14:38:10 GMT
- Followup-to: comp.sys.amiga.advocacy,comp.sys.amstrad.8bit,comp.sys.apple2,comp.sys.atari.8bit,comp.sys.atari.advocacy,comp.sys.atari.st,comp.sys.cbm,comp.sys.sinclair
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- Organization: University of Calgary
- References: <9ikva3$ple$1@nereid.worldonline.nl> <Pine.SUN.3.96.1010713122152.26976A-100000@compass.oregonvos.net> <Pine.SUN.3.96.1010713124315.26976B-100000@compass.oregonvos.net> <rcb3lt0t5lkofiocf6i3e3bap6vfivfqpi@4ax.com> <Pine.SUN.3.96.1010715133713.1337B-100000@compass.oregonvos.net> <9itqpg$poi$1@nserve1.acs.ucalgary.ca> <OMx47.16935$JN6.3470054@news1.rdc1.mi.home.com>
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william strutts (wrstrutts1@nospam.home.com) wrote:
: > Hardware:
: > - 4MB to 8MB RAM
<...>
: > - 64MB to 256MB RAM with battery backup, for
: > storing documents. Or use flash memory if
: > it is cheap enough.
: You couldn't get that much ram on a 68000 because it only
: has a 24 bit memory bus. You would have to go to a 68030
: or so to get the wider data path.
Then throw in some sort of decoder for the 64-256MB chunk. Since
it is not the main memory (that would be the 4MB chunk), it should
not make much of a difference. Indeed, it need not make any
difference to the average programmer, since it would (presumably)
be access through a set of file system calls.
Besides, isn't the 6502 limited to 64kB chunks. Apple simply
implemented some sort of paging mechanism to access the 128kB found
in later models (IIe/IIc). Likewise for the 192kB card which I
have lying around here, somewhere. (Though my understanding is
the 1MB card for the 8-bit machines used some sort of window into
memory.)
Byron.