CompuServe Messages

#Unformatting a disk

    08-Dec-87 08:00:12
Fm: Douglas Martin 73547,3210
To: Don Curtis/SYSOP 76703,4321
I don't remember the details, but I'm fairly sure Gabrielle is correct in what he says about "unformatting" on the IBM. The reason it works is that the disk doesn't truly get formatted in the sense of truly overwriting everything in the world unless you use the low-level formatting utility (I forget the IBM terminology, but I think you need a diagnostic disk to do it). The customary DOS FORMAT command still leaves enough when you do it to a hard disk that you really can "un-format"! For similar reasons if you have a sufficiently badly trashed IBM hard disk FORMAT isn't sufficient to "format" it again.