Jochen wrote:
>Loading the OS from (slow access) EPROM to (fast access) RAM >is of benefit. Yep, and it takes just a memory copy from ROM to RAM, which the OS can apply to itself at startup. BTW the Q60 with its 32 bit wide ROM bus isn't much slower than RAM. >SMSQ/E is so small, that the speed you gain >will outweight the memory loss easily. That was done on other >systems to gain speed. The "old" code is erased anyway, so does >not take up any additional RAM. Problem is boot speed if upgrade is on (hard)disk instead of ROM. If you load the new OS from disk, using an older version of the OS, you always need to boot the whole OS twice. This would happen on Qxx if upgrades come only on (hard)disk. On the other hand, SMSQ/E could be (almost) as fast as a simple loader. AFAIK it just wastes time with ineffient hardware initialization. Peter
