Optical disk storage and cd - rom, Basic Computer Science

Optical disk storage and cd - ROM:

Optical disk storage is relatively new alternative to magnetic storage. Digital data is burnt into the surface of a plastic disk coated with a low wetting point metal by a laser beam. The presence or absence of a hole corresponds to one bit and can be read by another laser: This technology offers a high capacity storage at low cost, and in a form allowing rapid access (analogous to magnetic disks). 

WORM (Write Once Read Many Times) disks are ideal for archival purposes allowing organisation to store large volumes of documentation on one disk. For instance a 12 inch disk can hold about 2.5 GB at a cost of few hundred rupees. Storage capacities of 5.0 GB is now available. But, the major problem with WORM technology is the absence of any industry standards. Now 10 inch disks (compact version CD-WORM) is being developed. 

The CD-ROM (Compact Disk Read Only Memory) is a 4.75" disk capable of holding 650 MB. The CD-ROM has become a means of distributing databases and documentation (including journals and patents) in electronic form.  

Posted Date: 10/24/2012 4:15:49 AM | Location : United States







Related Discussions:- Optical disk storage and cd - rom, Assignment Help, Ask Question on Optical disk storage and cd - rom, Get Answer, Expert's Help, Optical disk storage and cd - rom Discussions

Write discussion on Optical disk storage and cd - rom
Your posts are moderated
Related Questions
What are two types of evidence geologists use to learn about Earth''s interior.?

Goals of Autonomous Rational Agents: Artificial intelligence One possible way to improve an agent's performance is to enable it to have some kind of details about what it is tr

Definition of CPU scheduling: The assignment of physical processors to processes allows processors to complete work. The process of determining that for which process which pro

NUMBER SYSTEM:  We are familiar with decimal number system which uses ten distinct symbols from 0...9, and has base 10. In the decimal number system a number n 4 n 3 n 2 n 1

whats the adaptation

ython variables do not comprise to be explicitly declared to already reserve memory space. The declaration occurs automatically when you allocate a value to a variable. The equal s

StatefulServer, maintains some information between requests. Requires smaller messages, since some information is kept between contacts, example: FTP, telnet. Stateless Server req

I need to write a narrative n overview of the diagram and an analysis of the actors

G e ne ric Techniques Developed: In  the  pursuit  of  solutions  to  many   problems  in  the  above  categories,  serval specific  techniques have sprung up which have bee

Bootstrap loader: The critical programs are loaded into memory by the bootstrap loader at start-up time and will remain resident as long as the computer is running. The bootst