No, Bob does not have unrestricted access to everything on the hardware and software. While he has complete physical access to the disk and player, there may be certain files or folders that he is not able to access depending on the permissions that have been set.
What is disk?
A disk (or diskette) is a flat, spherical plate that can be used to encode and store data. Hard discs are a common component of a computer's storage system, although most other types of disk technology (floppy discs, CD-ROMs, and so on) have become obsolete. Data access from a drive is slower than data access from main memory, but disks are significantly cheaper. Disks, unlike RAM, retain data even after the computer is switched off. As a result, while disks have historically been the preferred storage medium for most types of data, they are gradually being supplanted by newer forms of storage such as flash drives, solid state drives, and cloud storage.
To learn more about disk
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