They are used by drives intended for laptop and other small computers which do not have ST506, ESDI, IDE or SCSI interfaces built-in, or slots for interface adapters. Supports bidirectional transfer of data and commands. The positive peaks correspond to the center of the written domain. Used for to store up o 650 Megabytes on each side of a Magnetic Optical disk-cartridge. This technique encodes data before it is written onto magnetic media.
Technique is used in hard drives and tape drives.
Proprietary, not generally licenced to or available from other manufaturers except by licence or agreement. Protocol This set of communication rules, must be identical for both the sending and receiving systems. For these applications, chose single memory modules, or boards with TSOP-type chips. It utilizes breaks in DC current to designate the number being dialed. PWM cartridges can store up o t 1.3 Gigabytes on each side of a MO disk-cartridge.