DVD's and CD's operate in a similar format, standard DVD's are based on the almost two decade old compact disc technology, having been designed to hold more data. Both are everywhere today, storing music, movies, games and computer software. First launched in 1982, the CD caused quite a stir of excitement and was hailed as a major advancement in entertainment and computer software. However, the DVD, first launched in early 1997, is quickly becoming the most successful new technology since the compact disk and looks set to soon replace it completely.
Sony introduced the first compact disc audio CD player on the market in October 1982 at a retail price of about $900. It caused great excitement as, in contrast to the standard analogue cassettes of that time, the compact disk was digital, .
recreating sound from a series of 1's and 0's stored on the disk known as binary.
Later, the compact disk was expanded to introduce the CD-Rom for use as random access computer data storage.
Basically, a cd is a thin piece of plastic. During the manufacturing process this plastic is impressed with microscopic bumps' (sometimes known as pits') and these are arranged as a single, continous, spiral track of binary data. A thin , reflective aluminium layer is then placed over this, followed by a protective acrylic layer. The label is then printed onto this acrylic. The spiral data track, which runs from the center of the Cd to the outside, is incredibly thin and small. If you could lift the data off a Cd and stretch it out onto a straight line it would be 0.5 microns long and almost 3.5 miles long! Because this is so small, it is important that the cd player concists if an incredibly precise reading mechanisim.
The CD player is an exceptionally precise piece of equipment. The drive consists of three essential components: .
A drive motor spins the disc. This drive motor is precisely controlled to rotate between 200 and 500 rpm depending on which track is being read.
Technology has also put a great deal into DVD players. ... Since the sophistcation of technology has grown the average family had one to three DVD's players in their household. They also have a greater amount of DVDs than cassette tapes. ... However they do not mind the DVD players and the DVDs. Technology sees this generation gap as an investment opportunity with DVD/VCR combos. ...
Goal Having foreseen the positive trend of the DVD player market together with the rapid growth of internet access, NetFlix positioned itself in the online DVD rental business. The target market NetFlix focuses on those who love movies, have access to internet, possess a DVD player or DVD-ROM equipped PCs. ... As a web based business, NetFlix has rapid growth potential with the popularity and development of World Wide Web, and DVD technologies NetFlix established promotional relationship with Amazon.com for the sale and rental of DVD. ... Due to the development of technology, some other ...
Technology today has made life easier and better. As we look at the technologies, what is modern technology? ... Technology also creates financial problems in families because most technologies are very expensive to buy like the computers, televisions, refrigerators, DVD system, and home theatre systems. ... How is technology an advantage? ... We also can use current technology and can create other technologies that will get benefit to us in the future. ...
From the 20th century until present days, the main technology was information gathering, processing, and distribution. ... Another big advantage of telecommunications is the streaming technologies. ... However, the streaming technologies may have a bad effect. ... Collectors may want to hold on to their DVDs for a variety of reasons-some sort of fleeting permanence being one of them-but for most viewers, the idea is to watch it now and then move on" (Dixon 29). ... In addition to the streaming technologies, it can be said that another application of it, is a videoconferencing. ...
Molecular nanotechnology is the ability to build a device with "every atom in its specified place"1. Some envision that molecular manufacturing will be here within 20 years. A nano-factory can be the size of a table top. Products will be more powerful and use less energy due to its size1. ...
Technology has had an undeniable impact on society, especially education. ... Though older generations argue that this excessive amount of technology hinders the students' capabilities to learn, technology is here to stay because it is the future. ... For students who find reading difficult, the subject matter could be presented with DVDs, captioned TV programs, or computer software to make this process less difficult. ... Technology is beneficial to all classroom members. ... Furthermore, technology has reshaped the overall learning experience. ...
The CD-R, compact disc recordable, utilizes laser technology. ... Another form of this technology is the compact disc rewritable, CD-RW. ... A DVD-ROM disk, digital video disc, is another form of the CD technology. ... The DVD itself costs $25 (Parsons and Oja 44). ... DVD? ...
DivX DVDs are usually a fraction (around 15%) of the size of a standard DVD; even at 640x480 resolution, they"re the best home video format in terms of the space that they take. ... DivX is the affordable alternative to DVD and it provides affordability through rental and sell-through prices competitive with VHS tapes. ... There's also DivXNetworks, Inc, the company behind the technology that was originally started as Project Mayo. ... About a third of those people downloading video files burn them onto a CD or DVD. ... We are aware of DivX and similar technologies, but it's ...
Also with certain programs, users can watch their favorite DVD on their computer instead of have a TV or DVD player. But for a DVD to work, hardware such as a DVD Rom has to be installed. If the user has a DVD burner as well, then they can copy the DVDs for themselves or others if they wanted to. ... A hundred years ago technology like phones and computers weren't even hear of. ... Computers will continue to change with technology and become better custom to fit every human's wants and needs. ...
