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Sad news! UMA still has no bootable/persistent RAMDISKS!
Authored by: THEM on May 30, '02 11:27:37PM

I thought it was because the newer memory systems lose contents a lot faster when not getting power than the old memory. Not "cheaper" parts.



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Sad news! UMA still has no bootable/persistent RAMDISKS!
Authored by: geohar on May 31, '02 04:47:18AM

I'm fairly certain that bootable ram disks were never preserved in ram over a shutdown. Instead, they got written to disk and read back into ram at startup by bootstrap code. I remember seeing the files (invisible on early SE/ Plus systems). New ram technology does loose information faster than old technology, but then its also faster to access and bigger capacity and higher bandwidth. And whilst it is cheaper than ram used to be this is due to increased quality production processes (which create higher chip yeild, and hence are lower overhead in terms of cost) and because ram is comoditized (and the market has surplus - remember when a fire in Japan wiped out a whole crop, ram went ceiling high then).



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