difference between magnetic disk and magnetic tape?
Magnetic Tapes And Magnetic Disks
Magnetic tape, the recording is laid out on a very long strip of magnetic material, which is wound on a reel. That means to get a specific block of data, you have to wind or rewind the reel until you get to the proper spot. That can take a long time, many minutes. But the reel can store a lot of data. Magnetic tape has been pretty much obsoleted by other storage methods such as DVD-R, that are cheaper and can access the data quickly, and are more reliable. Magnetic disc, the recording is laid out on the surface of a spinning disc in a spiral track. This means that the data can be accessed quickly, as the record/playback heads are on an arm that can move anywhere on the disc in a brief time. These are used for file and program storage on modern computers, known as hard disk. .
For the best answers, search on this site shorturl.im/axHIV Magnetic Tapes use thin long strip like media while Magnetic Disks use circular media. On a Magnetic Tape, the tracks run Diagonal (Helical Scan) or Parallel (Linear Recording) to the edge of the tape. A linear variation is serpentine recording, in which the tracks snake back and forth from the end of the tape to the beginning. Also, data is recorded in blocks of contiguous bytes, separated by a space called an interrecord gap or interblock gap. On a Magnetic Disk, the tracks are concentric (circles within circles) to the edge of the disk. Tracks are further divided into sectors, which hold a block of data that is read or written at one time. Data bits are recorded as tiny magnetic spots on the tracks. The smaller the spot, the more bits per inch and the greater the storage.
