White, Robert M. Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania.
- Magnetic medium
- Audio recording
- Video and data recording
- Digital recording
- Inductive readout
- Magnetoresistive readout
- Recording systems
- Magnetic recording channel
- Limits to recording density
- Perpendicular recording
- Optical storage
- Additional Reading
The technique of storing information as a magnetic pattern on a moving magnetic medium. The medium may be a disk, either flexible (floppy) or rigid, or a tape. There are various techniques for “writing” the patterns, including the use of the magnetic field generated by an electric current in a miniature coil, or the use of a laser beam to heat the material. There are several techniques for “reading” the pattern, such as measuring the voltage induced in the same or different coil by the magnetic fields associated with the pattern, measuring the change in the resistance of a metal stripe due to this field, or measuring the polarization of a laser beam upon reflection from the medium.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 45 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information