HD-ROM (High-Density - Read Only Memory) is a high-capacity storage technology developed at Norsam Technologies in conjunction with an IBM research group that enables a disk to store hundreds of times as much information as a CD-ROM. HD-ROM uses a very narrow, finely-focused particle beam (charged gallium ions) to write data. HD-ROM technology can be used to write data on different types of media, such as metal or other durable materials, to create virtually indestructible storage.
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
HD-ROM's particle beam, at a size of 50 nanometers, enables a storage capacity of 165 gigabytes on disks the same size as a CD or digital versatile disk (DVD). In comparison, CD-ROM uses an 800-nanometer wavelength laser beam for a storage capacity of 650 megabytes, and DVD-ROM uses a 350-nanometer wavelength laser for a storage capacity of 4.7 gigabytes. HD-ROM was designed to store large databases, such as those required by government agencies, banks, insurance companies, scientific users, and libraries. In addition to the enormous storage capacity, HD-ROM's benefits over traditional archival storage systems (such as magnetic tape and RAID) include faster access times, greater durability, and lower costs.