1. |
Plastic ribbon serves as the primary component of magnetic tape memory. |
The metal or plastic circular disk having coating of magnetic oxide serves as the key component of Magnetic disk memory. |
2. |
The cost of magnetic tape is less. |
The cost of magnetic disk is high. |
3. |
Reliability of magnetic tape is less. |
Reliability of magnetic disk is more. |
4. |
Access time for magnetic tape is more. |
Access time for magnetic disk is less. |
5. |
Data transfer rate for magnetic tape is comparatively less. |
Data transfer rate for magnetic disk is more. |
6. |
Magnetic tape is used for backups. |
Magnetic disk is used as a secondary storage. |
7. |
In magnetic tape data accessing rate is slow. |
In magnetic disk data accessing rate is high or fast. |
8. |
In magnetic tape data can’t be updated after fed-up of data. |
In magnetic disk data can be updated. |
9. |
Magnetic tape is more portable. |
Magnetic disk is less portable. |
10. |
Magnetic tape contains reels of tape which is in form of strip of plastic. |
Magnetic disk contains round platters which is made up of plastic or metal. |
11. |
1 track is kept for parity check in magnetic tapes so it is not used for storing data. |
In magnetic disk, the topmost surface of top plate and bottommost surface of last plate in a platter are not used for storing data as scratching issue can be there for both surfaces. |
12. |
In magnetic tape for data recording, magnetic material is coated on only one side of the tape. |
While in magnetic disk for data recording, magnetic material is coated on both side of the platters. |
13. |
Tape drives are used for reading and writing of data from magnetic tapes. |
Disk drives are used for reading and writing of data from hard disks. |
14. |
The storage components of magnetic tapes, are in contact with external devices in tape drives. |
Magnetic discs are not touched by any external devices |
15. |
Hold less data as compared to magnetic disk. |
Capacity to hold more data per unit volume. But these need to be kept in a vacuum in order to reduce air friction. |
16. |
Storing of data takes place in the form of records in magnetic tapes that are further organized in blocks. |
Storing of data takes place in the form of files, folders or directories on the disk. |