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Kondo, H.; et al. “Design and Construction of Magnetic Storage Devices” Handbook of Micro/Nanotribology. Ed. Bharat Bhushan Boca Raton: CRC Press LLC, 1999 © 1999 by CRC Press LLC Part II Applications © 1999 by CRC Press LLC Design and Construction of Magnetic Storage Devices Hirofumi Kondo, Hiroshi Takino, Hiroyuki Osaki, Norio Saito, and Hiroshi Kano 12.1 Introduction 12.2 Hard Disk Files Heads • Construction of the Magnetoresistive Head • The Disk • The Head-Disk Interface 12 12.3 Tape Systems The Recording Head • Magnetic Tapes • The Head–Tape Interface 12.4 Floppy Disk Files Floppy Disk Heads • Floppy Disks • High-Storage-Capacity Floppy Disks • Head–Floppy Disk Interface References 12.1 Introduction Magnetic recording is the most. | Kondo. H. ol al. Design and Constroction of Magnetic Storage Devices Handbook of Micro Nanotribology. Ed. Bharat Bhushan Boca Raton CRC Press LLC 1999 1999 by CRC Press LLC Part II Applications 1999 by CRC Press LLC 12 Design and Construction of Magnetic Storage Devices Hirofumi Kondo Hiroshi Takino Hiroyuki Osaki Norio Saito and Hiroshi Kano 12.1 Introduction 12.2 Hard Disk Files Heads Construction of the Magnetoresistive Head The Disk The Head-Disk Interface 12.3 Tape Systems The Recording Head Magnetic Tapes The Head-Tape Interface 12.4 Floppy Disk Files Floppy Disk Heads Floppy Disks High-Storage-Capacity Floppy Disks Head-Floppy Disk Interface References 12.1 Introduction Magnetic recording is the most common technology used to store many different types of signals. Analog recording of sound was the first and is still a major application. Digital recording of encoded computer data on disk and tape recorders has evolved as another major use. Hard disk drives use high signal frequencies coupled with high medium speeds and emphasize small access times together with high reliability. A third large application area is video recording for professional or consumer use. The high video frequencies are normally recorded using rotatory-head drums. Despite the availability of other methods of storing data such as optical recording and semiconductor devices magnetic recording media has the following advantages 1 inexpensive media 2 stable storage 3 relatively high data rate 4 high volumetric density. In principle a magnetic recording medium consists of a permanent magnet and a pattern of remanent magnetization can be formed along the length of a single track or a number of parallel tracks on its surface. Magnetic recording is accomplished by relative motion between a magnetic medium tape or 1999 by CRC Press .
