Optical Disks Vs Magnetic Storage
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A Guide to Optical Storage Technology
Author | : John Ash McCormick |
Publisher | : |
Total Pages | : 176 |
Release | : 1990 |
Genre | : Computers |
ISBN | : |
Optical Disks Vs. Micrographics
Author | : William Saffady |
Publisher | : |
Total Pages | : 128 |
Release | : 1993 |
Genre | : Computers |
ISBN | : |
A detailed comparison between optical disks and micrographics for the storage and retrieval of documents, emphasizing the factors that limit one or the other in specific applications. Surveys the published opinions about the relative value of the two technologies; provides a point-by-point comparison of features; and discusses such topics as computer output laser disk and CD- ROM. Revised from the 1988 edition. Annotation copyright by Book News, Inc., Portland, OR
Optical Disks for Data and Document Storage
Author | : William Saffady |
Publisher | : Westport, CT : Meckler |
Total Pages | : 106 |
Release | : 1986 |
Genre | : Computers |
ISBN | : |
Mechanics and Reliability of Flexible Magnetic Media
Author | : Bharat Bhushan |
Publisher | : Springer |
Total Pages | : 638 |
Release | : 2000-05-31 |
Genre | : Technology & Engineering |
ISBN | : 9780387989365 |
According to some estimates, 95% of information today is stored on paper, 3% on microfiche, and only 2% on magnetic/optical and semiconductor storage devices. Semiconductor storage is almost exclusively used for dy namic random access memory (D-RAM) in computers, and constitutes a very small fraction of the total storage capacity. Magnetic storage devices include hard disk, flexible disk, and tape drives. Estimates for worldwide storage is 12,000 petabytes (12 million terabytes). It is estimated that mag netic tapes store about 95% of the information, and the balance is stored equally by magnetic hard disk and optical disk drives (250 petabytes each). 14 For comparisons, the human brain has 10 neurons and holds approxi mately 200 megabytes of information. For a world population of 6 billion people, the total human memory is therefore 1200 petabytes, which is about 10% of the electronically recorded information. Magnetic and optical storage industry for consumer and data recording applications is at present an industry grossing more than $80 billion per year. It is expected to grow at cumulative rate of about 10% per year. Revenue is as follows: for magnetic disks and drives, about $35 billion; for flexible disks and drives, about $4 billion ($1.5b/$2.5b); for data tape and tape drives, about $8 billion ($2b/$6b); for consumer video- and audiotape and tape drives, about $25 billion ($8b/$17b); for CD/DVD read-only disk and disk drives, about $7 billion ($lb/$6b); and for other optical products, less than a $1 billion.
Optical Storage Technology 1988
Author | : William Saffady |
Publisher | : Mecklermedia Corporation |
Total Pages | : 174 |
Release | : 1988 |
Genre | : Computers |
ISBN | : |
Rewritable Optical Storage Technology
Author | : Judith Paris Roth |
Publisher | : Westport [Conn.] : Meckler |
Total Pages | : 192 |
Release | : 1991 |
Genre | : Computers |
ISBN | : |
Optical Disks Vs. Micrographics as Document Storage & Retrieval Technologies
Author | : William Saffady |
Publisher | : Westport, CT : Meckler |
Total Pages | : 122 |
Release | : 1988 |
Genre | : Technology & Engineering |
ISBN | : |