magnetic tapes are cheaper
A hard drive comes with the Computer. A hard drive is considered permanent as opposed to magnetic tape. The data in tape can be accessed only serially whereas randomly in hard drive.
what is the defference between cassette tape and hard disk
The hard disk is the device that stores the folders.
Both are magnetic media used to store information.
Hard disk has always been a hard piece of ferromagnetic metal, while the floppy disk contains only one flexible magnetic foil.
absolutely nothing
THE DIFFERENCE BETWEEN A PERMANENT HARD DISK DRIVE AND A REMOVABLE HARD DISK DRIVE A permanent drive is in housed in the system while the removable one is externally fixed. Basically they perform the same functions.
magnetic disk
A magnetic disk is a disk which stores information magnetically, and is read/written with a small magnetic head (e.g. a hard disk)An optical disk is a disk which stores information optically, usually as a series of pits and peaks, and is read/writMagnetic Storagea) Stores data in magnetic form & it doesn't use laser to read/write datab) It is affected by magnetic field.c) It has high storage capacity.d) Data accessing is high as compared to CD's and DVD's.e) Magnetic storage devices are ; Hard disk , Floppydisk, Magnetic tape etc.Optical Storagea) Stores data optically & uses laser to read/write.b) It is not affected by magnetic field.c) It has less storage than hard disk.d) Data accessing is high as compared to floppy.e) Optical storage devices are ; CD-ROM,CD-R,CD-RW, DVD etc.
Hard disk is recorded, main comes and goes.
There is difference between SATA and PATA HDD but no difference between the formatting..
Magnetic storage is used on hard drives and floppy disks. Sectors of the disk are charged magnetically and are easily changed later. Optical storage uses a laser to read data. On a cd/dvd, the laser picks up tiny marks made starting in the center and rotating outward.