The Creation Of The Compact Disc
The creation of the compact disc, better known as the CD, can be traced back to the late 1960s. A Dutch scientist named Klass Compaan of Philips Research conceived the idea for the CD. He teamed with another scientist, Piet Kramer, who together introduced the first color videodisc prototype in 1972. Sony teamed up with Philips on the creation of the compact disc, and together they were able to develop a standard, universal compact disc to hold audio information. The two companies officially announced the Digital-Audio disc in 1980. In 1982, the compact disc was introduced to the public in Europe and Japan. Later, in 1983, it was introduced in the United States (Future).
Compact Discs are flat and circular, with a diameter of 120 millimeters. The actual disc itself is made of hard plastic covered with aluminum or some other reflective metal. Information is stored on the compact disc in numeric form, also called digital form. The primary use for the compact disc is to store and play back music. However, they can also be used to store pictures, files of text, sounds, programs, video games, high quality images, or motion pictures. Many features of the compact disc are standardized, such as its size, minutes of sound, and data format. This allows a compact disc to be played on any compact disc player (Pohlmann, 901).
The audio compact disc replaced earlier sound recording technology, such as the phonograph record and cassette tape, for a variety of reasons. First of all, they are longer lasting. Compact discs are read by a laser, or in other words, they are optically read (Feldman, 160). Therefore, there is no friction needed to play back the information on a CD, as opposed to th...
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11. Kim-Cohen, S. 2009. In the Blink of an Ear: Toward a Non-Cochlear Sonic Art
compression ratio and CD- quality sound. An Mp3 file compresses a sound file to one-twelfth its
Rumsey, Francis, Time McCormick. Sound and Recording, an Introduction . Woburn , MA : Focal Press, 2002.
Water has become a very controversial issue in the United States and around the world. As populations increase and resources decrease, the way we use our resources and keep populations safe become more and more important. Throughout the world there are nearly 1.1 billion people who do not have access the clean drinking water. 5 Most of these 1.1 billion people are located in poor areas and do not have the financial means to build the infrastructures needed to provide water to the citizens of their country. 5 Drinking water is an essential part of our everyday life. People must have water to survive, but it must be clean and safe to consume.
Herman Hollerith (1860 - 1929) founded IBM ( as the Tabulating Machine Company ) in 1896. The company renames known as IBM in 1924. In 1906 Lee D. Forest in America developed the electronic tube (an electronic value). Before this it would have been impossible to make digital electronic computers. In 1919 W. H. Eccles and F. W. Jordan published the first flip-flop circuit design.
CD burning enables any individual with the software and equipment to make a duplicate copy of any compact disc. Compact disks are also able to hold information, and this is a major advantage of burning technology. With the ability to burn information onto CDs, people are now able to make larger files and presentations and are not limited as much by storage space as they were when floppy disks were the only medium to transfer data between computers. The ability to transport large files is an advantage for many people: from students with large projects to do to business men and women who have major presentations to give. Now people are able to transport larger files w...
...11). Sound Upon Sound: The Conversation. [Online] Available from Sound on Sight: http://www.soundonsight.org/sound-upon-sound-the-conversation/ [Accessed 05 February 2012]
Teenage pregnancy develops physical anomalies, an abnormal social life for a teen, a decrease in education, and can cause an unstable life financially. Lack of parental care can cause physical problems for both the child and the mother. The mothers social life can also be affected by making them leave their friends behind as she cares for her newborn. Teen mothers are also more likely to drop out of high school due to complications in caring for their child. Stable jobs are typically harder to find with a lack of higher education and cause financial instability for the mother. From its peak in 1990, teen pregnancy rates have declined by 42% by 2008 (Healthyteennetwork.org) yet this is still higher than any first world country. Teen pregnancy is an ongoing battle and should be considered won when it is eradicated.
The use of sound has been greatly developed and is now considered as "one of the richest sources of meaning in film art." (Giannetti, 2002). When sound in film is being examined, two positions must be assumed; digetic sound and non-digetic sound. These positions relate to the basis of the sound in film and television. For example, digetic sound refers to the sound that materialises inside the creation of the film (if a character h...
People Need to Recycle In the United Sates, where the population is inflated every year. The amount of space for landfills decreases every day. The need for recycling should not be asked, it should just be done out of habit. Everyone in America needs to recycle, to help the lamdfill problem, help the environment, and help produce new products from recycled goods. In America there is about two-hundred and eight tons of residential and commercial trash generated a year, 4.3 pounds per person a day (Prichard 1A). This is an overwhelming amount of trashed produced yearly. When people recycle this number can be drastically cut. But many people do not practice and use recycling. Consumers and businesses should use the three R’s; recycle, reuse, and recharge (Prichard 1A). Consumers and businesses are producing more garbage than ever before. As a result, we are rapidly running out of landfill space. In 1979 America had close to 18,500 landfills, and by 1991 that number was nearly cut in half (Prichard 10A). Kentucky, Ohio, Minnesota, and Illinois will reach their maximum limit on landfills by the year 2005 (Prichard 10A). This whole garbage problem has forced us to try other options. Many of these options have been very unsuccessful. People have tried burning their garbage, that cause pollution to the environment. Some states even resorted to dropping their trash in the ocean, only to have the very same trash float ashore later. Dumping it on other states leads to feuding neighbors. Indiana passed a law to block imports of out-of-state trash, but a federal court ruled the law illegal (Prichard 10A). Instead of trying to find new ways to dump our trash, we need to find b...
According to U.S. Health and Human Services, 1 in 3 girls will get pregnant before she turns twenty. Almost 1 million teens get pregnant every year. Most of these pregnancies are unplanned, and cause turmoil for the teen mother, the baby's father, and their families. (surviving an unplanned pregnancy). As that may come as a shock, those statistics are realistic and accurate. In 2012 alone there were 29.4 live births for every 1,000 adolescent females ages 15-19. (hhs.gov). U.S. teen birth rate is slightly higher than any over developed country. U.S.A is holding the top rank in adolescent pregnancies. Of about 82% of pregnancy are found to be in teenagers having an age group between 15-20. (Teenage pregnancy: causes and facts). Childbearing at a young age impacts the adolescent parents both momentarily and in the forthcoming future. How can a child care for a child? They simply can't. “I’m still just as young as I was” she insists, “I haven’t grown up any faster.” (Wallis). Spoken by a young girl whom gave her perspective on giving birth at a young age. In society today, the uprising issue of adolescents having children, teen pregnancy, is becoming a lifetime impediment.
People don’t appreciated the many advantages that comes with having clean potable water to use, taking it for granted. A lot of clean useful water is wasted by humans all the time that people don’t care about saving water because they have easy access to it. Clean and safe drinkable water resources are getting scarce as the population grows. The world is facing many problems, but the most important needed to survive, is water. Water is getting low in many countries, therefore habitants are suffering the misfortune of not having the reliable source of clean water. Today many countries are having water shortages; meaning rivers, lakes, streams and groundwater are not enough to rely on for supplying water demands. For example, California is facing a drastic water shortage, the natural water resources are not enough to fulfill their water demands. Water shortage affects the agricultural sector, so as a consequence the price for production
Being a teenager means that you are just starting life. Teenager’s role is to study, to play, to make friends and to enjoy the beautiful things in life. However, this joyful and happy life just needs a single mistake to be changed radically; this mistake is to become a teenage mother. For example, every four of 10 teenage girls in the United States get pregnant before the age of 20 (Hillis, Anda, Dube, Felitti & al, 2004). In Teenage Pregnancy a Theoretical Analysis of a Social Problem, Davis (1989) stated “In teenage pregnancy we have a problem about which everyone has an opinion, but apparently no one has a solution” (p. 20). More and more teenage girls are getting pregnant around the world and this significant
Smith, Jeffery J. "Simple Solutions That Can Change the World." The Progress Report. N.p., 30 Mar. 2010. Web. 18 Nov. 2013. http://www.progress.org/2010/03/30/simple-solutions-that-can-change-the-world/
A storage device is the system where your computer stores and retrieves your data. Storage devices can be a hard disk drive, DVD, CD drives, Blu-Ray drives or flash drives. A computer can retrieve the data by being “commanded” to retrieve it from the storage area and retrieve it to your RAM. The RAM of the computer is your temporary memory where your data is inputted, and then processed and stored onto a storage device for permanent placement.