BIOS has had the possibility to protect information on a computer by locking the records on floppy-disks since it was the only way for migrating the information. Nowadays three-inch floppies are replaced by more capacious compact media, for example, rewritable CDs or flash-cards. Nevertheless, it is possible to protect data from unauthorized copying on floppies.
A parameter that controls reading/writing of a floppy is called “Floppy Disk Access Control (R/W)” (Floppy Access Control, Diskette Write) and is located in BIOS section “Features Setup”. This parameter may have the following values:
- Read Only (Disabled) – only reading, a function of writing on a floppy is locked;
- Read/Write (Enabled) – full access to reading/writing.
There is a similar parameter for the hard disks but it cannot be found in all versions and types of BIOS.
A parameter that controls reading/writing of the hard disk is called “Hard Disk Access Control” and is also located in BIOS section “Features Setup”. This parameter may have the following values:
- Read Only – only reading, writing on a disk is locked;
- Read-Write (Enabled) – full access to reading/writing.