But good old diskettes had a physical write-protect switch. Very useful to prevent an accidental overwrite of data.
Are you sure zip-disks don't have such? It surely would make sense.
Above says it all. I'm trying to format a 100M zip disk and I cannot remove the write protection. Is there a DOS-like command that does this? The environment is an IBM 4690 POS controller, very similar to a PC with an old version of DOS. No windows. No mouse. TIA.