TABLE OF CONTENTS
Introduction ................................................................................................pg. 2
Factors Creating the Demand For Secondary Storage ............................pg. 2
Why Buy Optical ........................................................................................pg. 3
CD Physical Characteristics.......................................................................pg. 4
How Does a CD Work.................................................................................pg 5
What is a CD-R............................................................................................pg 5
What is CD-RW...........................................................................................pg 5
How Does A CD-RW Work .......................................................................pg. 5
Advantages of CD-RW ..............................................................................pg. 5
DVD.............................................................................................................pg 6
DVD VS. CD...............................................................................................pg 6
Glossary ......................................................................................................pg 7
Questions ....................................................................................................
INTRODUCTION
The use of optical storage continues to grow at an incredible pace. The word optical in the computer industry refers to any storage method which uses a laser to store and retrieve data from media. This term includes such devices as CD-ROM , rewritable optical, WORM, CD-R, and optical jukeboxes or autochangers.
Most of us are familiar with CD-ROM, but other terms such as rewritable optical, WORM, and CD-R, may be foreign. Rewritable optical devices use media that allows data to be written repeatedly, while WORM technology writes data permanently to disk. CD-R , stores information permanently to a compact disc and is read on low-cost CD-ROM drives. These devices are currently sold as single or standalone items.
The continuing development of optical technology has opened up many new avenues and created limitless possibilities. Migration software now allows unused data to be moved from its original location to an optical device where it resides until it is needed. Since the only thing that touches the media is the laser, it is the most durable way to store and archive data. Optical storage solutions are also used in a wide variety of applications such as document timing, records retention, backup systems, and desktop publishing.
FACTORS CREATING THE DEMAND FOR SECONDARY STORAGE
Because of its high capacity, low cost, durability, and random access to large amounts of networked information, secondary storage satisfies an essential need of data intensive organizations. This need for secondary storage arises from a number of factors:
Digital convergence. The move towards graphical user interfaces and the success of operating systems, such as Windows, Windows 95, and Windows NT, have resulted in a significant increase in the average size of a stored document. Industry estimates indicate that the average document size has grown almost tenfold (PC Magazine, 03/10/98, "To Write or Rewrite?")
The information superhighway. The explosive growth of on line services, led by the Internet, has resulted in unprecedented use of such services to reach potentially huge new customer base.
Another consideration for the need of reliable secondary storage is the increasing cost of managing storage on network servers. According to Strategic Research Corporation, as storage requirements explode, organizations are finding that the cost of managing the storage is almost four times the cost of the actual storage due to server downtime, backup procedures, and hard disk failures.
12. DVDs are digital versatile disc, optical discs used to externally store data. DVDs have higher recording and retrieving speeds, are better suited for backing up information, and have higher capacity per device than
One of the newest, most exciting and innovative ways to get music these days is not in the mall and not at a huge mega-sized electronic store, it's not even by a mail order CD club. It’s the computer. It sits conveniently on a desk and now allows access to every imaginable genre of music, twenty-four hours a day, rain or shine, snow or sleet, in the comfort of your own home. Technology is changing the way we listen to music. Now downloading a Mp3 from the Internet is a lot easier than going to the store and buying an overpriced CD. A near CD quality digital recording of music, Mp3s are digital computer files compressed to make them readily available over the Internet. It seems the high prices, new technology, and availability are causing most music lovers to turn to this new form of music media to combat their expensive addiction to compact discs. It has become so simple to search out and download music that more and more people are finding it favorable to just copy their music to a recordable CD (CD-R). That would mean people could, from their own home, create illegal copies of the copyrighted material at or near industrial compact disc quality. Further adding to consumer accessibility, manufacturers now produce portable MP3 players , so now the need to buy CD-R’s is eliminated and you can just...
On the other hand, Sittig et al (2008) have discussed the grand challenges of CDS and placed them into following three large categories:
7.Gregory Wester, Stephen Franco. The Internet Shakeout 1996. Interactive Commerce Research Bulletin. the Yankee Group, Boston, MA. December 1995
The history of the internet takes us back to the pioneering of the network and the development of capable technologies. The explosion of the internet’s popularity of the 1990’s was large and dramatic, boosting our economy and then helped to bring it into a major recession. One can only hope that the explosion becomes organized and slightly standardized in the interest of the general public. Despite all of these conjectures and speculations only time can tell the future of the largest network in the world.
Culture is one of the most complicated words in the English language (Williams, 1983). The word organization culture was introduced by Pettigrew (1979) however the term was widely spread due to the work of Deal and Kennedy (1982). It was at the beginning of the 1980s after the publication of the Business Week article on corporate cultures when various scholars began paying attention to the concept of organization culture and since then thousands of definitions came to life. The term is used to describe the pattern of values, norms, attitudes, shared believes and assumptions that may have not been articulated but that shape the way employees behave and how things get done in an organization. (Armstrong, 2014).
The cloud storage services are important as it provides a lot of benefits to the healthcare industry. The healthcare data is often doubling each and every year and consequently this means that the industry has to invest in hardware equipment tweak databases as well as servers that are required to store large amounts of data (Blobel, 19). It is imperative to understand that with a properly implemented a cloud storage system, and hospitals can be able to establish a network that can process tasks quickly with...
‘One of the first and most important assumptions of the study of mass communication has been the presumption that media and their content have significant and substantial effects’ (Perse, E.M. 2001: 3). The topical debate and concerns of ‘media effects’ has had a long history. ‘Mass communication could become the basis for people’s view of the world’ (Lippman, 1922)4. This quote demonstrates that in the early 1900s scholars were concerned with media’s dominant ability to influence audiences. As new mediums have come into play, opinions on the matter have rarely changed. ‘Media effects’ refers to how powerful and influential the mass media is upon audiences in society and how this affects individuals patterns of thought and behaviour.
Radcliffe-Brown. In looking for the reason a society is held together, Durkheim focused on social ‘facts’ – the facets of society such as customs and values that dictated the operation of the overall system in meeting individual’s social needs. These facts are not derived from studying the individual, but instead are “features of collective existence … which are not reducible to features of the atoms, individuals, which make it up" (Hadden, 1997). This constitutes a macro-social view with the understanding that society is a constructed system where individuals are filling rotating stable social roles. Rather than focus on the individual filling the position, structural functionalists discuss the importance of the social position itself and how it affects society’s workings. In this holistic practice, there is little room for change and even less for individual thoughts or actions. Each person conforms to the ingrained social norms governing the roles he or she fulfills to ensure society’s functional needs are met. The interdependent structure will continue to function as a well-oiled machine so long as each of these parts are performed and maintained. Any disturbance to the system will be met by swift change in other parts to return society to equanimity (Bancroft and Rogers,
...ats such as paper based and microfilm. Compare to paper based, it does not change the form of paper even how many years pass. With the proper care of the records, record center or an organization can keep the record almost thirty years until the process of destruction. However, it could not happen to an electronic record, because technologies rapidly change. There always have new software or hardware that will be upgrade and become more advance. Actually, even under the best storage conditions, digital media have a very limited shelf life, generally less than thirty years. The efforts to preserve the physical media thus provide only a short term, partial solution to the general problem of preserving digital information. Given such rates of technological change, even the most fragile media may well survive the continued availability of equipment to read those media.
In the book, Thompson makes it easy for the reader to understand mass communication in depth. He focuses on the application of mass communication in the contemporary times. He begins by defining the word ‘mass’ in which he argues that the media today does not target the mass but niche markets. I agree with him on the fact that the term ‘mass’ is misleading. It appeals to a vast audience composed of millions of individuals. He uses the most popular day newspaper as an example to illustrate this argument. I see it in films and television programs too. The society that I live in has several categories of audiences. In all social gatherings such as church meetings and cases where the target group of distinct information consists of specific character traits, I normally observe what Thomson refers to as ‘undifferentiated individuals’ (Thomson13).
The rise of the media and mass communication in the early twentieth century, focuses on the power of the media to impact individuals and society, which is by what became known as ‘mass society theory’, which implies that the mass media is any medium that is used to convey and transmit mass communication. The media is considered as the general condition of modernity that is undermining and weakening the traditional bonds, keeping society together and making ind...
The Internet has become a key ingredient of strenuous and busy lifestyle. ‘Internet’ has become the central-hub for communication, explorations, connecting with people or for official purposes. Resultantly, Internet growth has led to a plethora of new developments, such as decreased margins for companies as consumers turn more and more to the internet to buy goods and demand the best prices.
one will begin to see more and more documents being on CD-ROM and also on the
Similar definition tries to bring John Pavlik, an American academic and author, as well. In his book “An introduction to mass communication” he alludes that mass communication refers to the technology that is used to communicate to a large group, or groups of people in a short time frame (Pavlik 2004). "Mass media" is a term embracing innumerous arrangement of institutions and individuals who vary in method, purpose, scope and cultural