Yeah, old drives didn’t autopark like the IDE drive in your spiffy 486. I had an XT growing up, and dad was militant about having us remember to park the drive when we were done with it. I think by the end of the 80s, all drives were IDE and were autoparking, so the command was deprecated.
Cool, I’ve wanted an OS ROM chip since the early nineties, and often wondered why nobody seemed to be doing it. Guess they were all along!
You technically didn’t have to park the old MFM and RLL drives, but if you didn’t, then you just had the drive heads resting on the platters after you shut them down. Then if you bumped or moved the PC at that time, it could scratch the disk like a record. If you never tried to move it, there probably wasn’t much risk.
From the sound of it, the HDD in your Tandy probably would have been an MFM or RLL drive, and depending on the drive model, it either autoparked the drive heads or didn’t. As a PC clone running MS-DOS, the command was probably supported, but maybe not needed. Or you may have just been the equivalent of one of those rebels who held down the power button every time they wanted to shut down the PC and always got away with it!
Yeah, old drives didn’t autopark like the IDE drive in your spiffy 486. I had an XT growing up, and dad was militant about having us remember to park the drive when we were done with it. I think by the end of the 80s, all drives were IDE and were autoparking, so the command was deprecated.
Damn, I had a Tandy 1000HX (very much not a 486) and never had to do that. Maybe because, despite having a hard disk, it had DOS on its own ROM.
Cool, I’ve wanted an OS ROM chip since the early nineties, and often wondered why nobody seemed to be doing it. Guess they were all along!
You technically didn’t have to park the old MFM and RLL drives, but if you didn’t, then you just had the drive heads resting on the platters after you shut them down. Then if you bumped or moved the PC at that time, it could scratch the disk like a record. If you never tried to move it, there probably wasn’t much risk.
From the sound of it, the HDD in your Tandy probably would have been an MFM or RLL drive, and depending on the drive model, it either autoparked the drive heads or didn’t. As a PC clone running MS-DOS, the command was probably supported, but maybe not needed. Or you may have just been the equivalent of one of those rebels who held down the power button every time they wanted to shut down the PC and always got away with it!
I never had to do that, because our computer didn’t have a hard drive. We booted DOS right from the floppy.