TIL all magnetic disk drives are technically #RLL drives, in that they all use a run-length-limited encoding, including older hard drives that came out before it became a thing to label hard drives “RLL”.
“RLL” is basically just a misnomer/placeholder for a hard drive that uses a newer/more complex encoding scheme than #MFM.
The rear side of one Retro HDD in zoomed detail
#RetroTechnology #RetroComputing #HDD #RLL #MFM #oxidation #O² #platter #arm #Park
The front side of one Retro HDD in zoomed detail
#RetroTechnology #RetroComputing #HDD #RLL #MFM #oxidation #O² #platter #arm #Park
The front side of a couple of retro HDDs
#RetroTechnology #RetroComputing #HDD #RLL #MFM #oxidation #O² #platter #arm #Park
Even though My Fujitsu hard drives are many decades old, the drive still spin at 10.000 RPM
Technology we could rely on in the last century.
It started with Winchester Drives then the MFM & the RLL drives, which needed manual parking & low level formatting.
Later it became the three and a half inch Magneto mechanical hard drive.
On my Amiga computers the Fujitsu HDDs spin* at a dizzying 10.000 RPM!
The Fujitsu is an Ultra Wide 68 pins SCSI HDD, with a transfer speed so high my Amiga never had to wait for data from the drive.
ARGVMI~1.PIF
Amiga4000T
ASX Mkt. Sensitive
PLA_906114
Tim Nolte