Tape Drive: Also known as a streamer, is a data storage device that reads and writes data stored on a magnetic tape or a punched tape. It is typically used for archival storage of data stored on hard drives. Tape media generally has a favorable unit cost and long archival stability.
Hard Disk Drive: A hard disk (commonly known as a HDD (hard disk drive) or hard drive (HD) and formerly known as a fixed disk) is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. Strictly speaking, "drive" refers to a device that drives (removable) media, such as a tape drive or (floppy) disk drive, while a hard disk contains fixed (non-removable) media. [1] However, in recent times, the hard disk has become more commonly known as the "hard drive."
DVD/RW: DVD+RW (and DVD+R) discs store about 4.7 GB of data (interpreted as ? 4.7 · 109, actually 2295104 sectors of 2048 bytes each).
DVD+RAM supports random write access, which means that data can be added and removed without erasing the whole disc and starting over (up to about 1000 times). DVD+RAMs can thus be treated like removable hard disks making them comparable with the CD-RW standard. (In contrast, DVD-RW discs must be erased before re-writing can take place).
Linear Mode
