The emergence of the CD-ROM format created a standard around which optical data storage could consolidate. If the 1990s saw economic improvement from optical disk, the 21st Century is seeing technological improvement. If the diameter of a spot recorded on an optical disk is halved, the storage density is improved by a factor of four, so is the amount of energy available to write a spot. CD technology was designed for 830nm wavelength lasers, essentially giving an 830nm spot, although finally 780nm lasers were used.
- Business transforms when it comes together | Unite your IT , Ops, and Applications teams with shared solutions. Get Ready - Red Hat Cloud
- Upskill your Team. Transition your Career. Cyber Security Foundation & Practitioner™ instructor-led course, for anyone needing a solid understanding of Cyber Security.