A conventional hard disk is magnetic.
A compact disc is a type of optical disc. "Optical disc" is an umbrella term for any type of storage media which uses optical technology (as opposed to magnetic) for data storage. This includes but is not limited to DVDs, CDs, H-DVD, blu-ray, laser discs CDRW's, and DVDRW's
two types - magnetic in the form of magnetic tape,magnetic disc and optical in the form of compact disc.
To read CD-ROM's, the technology in a CD-ROM drive is an optical disc drive (ODD). It typically utilizes light to retrieve information on a disc.
"Disc" refers to optical media, such as CDs or DVDs. "Disk" refers to magnetic media, such as hard drives. So the answer depends on which drive you are referring to; most have both an "optical disc drive", and a "hard disk drive".
The optical disc was invented in the 1950's and 1960's. The first patents for this technology were registered to David Paul Gregg in 1961 and 1969. The Music Corporation of America bought the rights to these patents.
optical storage technology
If you burn infected files onto an optical disc then those files remain infected and would remain on the optical disc permanently.
CD and DVD disks are used by optical disc drives.
O. C. Oberhauser has written: 'Multimedia information storage and retrieval using optical disc technology' -- subject(s): Information storage and retrieval systems, Information technology, Library science, Optical disks, Optical storage devices, Technological innovations
types of optical disc drive are: cd,dvd,blueray,cdr,cdrw,dvdrw,mp3,mp4
I think it is, because its an external memory.
DVD+R is a recordable optical disc. The first dual layer DVD+R that was created was in the year 2003. The disc was demonstrated that double layer technology could be used with a DVD+R disc to nearly double the capacity per disc.