13 Dec
2022
13 Dec
'22
4:14 p.m.
Hi Bakul,
Fortune 32:16 was a 5.6Mhz machine and couldn't
process 1020KB/sec
(17 sectors/track of early ST412/ST506 disks) fast enough. As Warner
said, one dealt with it by formatting the disk so that the logical
blocks N & N+1 (from the OS PoV) were physically more than 1 sector
apart.
Sticking with ST506 hard drives, by the time the 8 MHz ARM2 from Acorn
was reading a 56 MB Rodime, it was the drive which couldn't keep up so
executables were stored compressed on disk so the CPU had something to
do, uncompressing the sector's content, while it waited for the next
sector to arrive. :-)
--
Cheers, Ralph.