Vectors and 3D Models
Local Search - Technology
Weather Information
Get the App for Smartphones and Tablets

Go Back


WhmSoft Free Articles Directory
Free Articles for Reprint
Free Articles to Publish
Free Articles for Newsletters
Videos to Watch


Page Generation Date and Time:
08/20/2017 21:22:36

 
Free the Animation VR / AR
Play to reveal 3D images and 3D models!
   
 
vlrPhone / vlrFilter
Project of very low consumption, radiation and bitrate softphones, with the support of the spatial audio, of the frequency shifts and of the ultrasonic communications / Multifunction Audio Filter with Remote Control!



 
 
Alexa Data
 

Go To Articles Directory Home Page

To get the current article, - See Below (at the bottom of the page) -.
For top news titles, see below.
Web sites and videos listed in this page are frequently updated.
If you find that this page is useful (quality of web sites, images and videos, ...), you can add it to your favorites.
Bookmark Page !

Tell a Friend:



With your mobile phone (WAP / I-Mode / iPhone / PDA), for free:
The Top News - http://www.whmsoft.net/services/wap/news.php
The Daily Files - http://www.whmsoft.net/services/wap/get.php
All the Directory Files - http://www.whmsoft.net/services/wap/choose.php

Web version of feeds:
Podcast Music - http://www.whmsoft.net/services/web/wpodcast.php
Daily Files - http://www.whmsoft.net/services/web/wget.php

You can play the Guitar Drum Revolution game (flash game) by following the link below:
Play Guitar Drum Revolution Game


You can play free online games (flash games) by following the link below:
Free Online Games

Play the samples below:
Old WestRacingtrackStupid CupidLe Petit ChatonSnowy Treasure Hunter

You can view the people (celebrities) news and the front page news (with videos, images and constant updates) by following the link below:
View Recent News
or by visiting the WhmSoft Service blog:
News Photos Slideshows


Article Keyword Videos to Watch
Technology
Click on the image to start the video.



Related Topics
Images - Links - Articles

technology
technology definition
technology news
technology in the classroom
technology synonym
technology in education
technology quotes
technology credit union
technology articles
technology review
Hambourg technology
Hambourg


Related Images



Article Category Videos to Watch
Technology
Go to the Videos Pages


The Milestone of Portable Storage Media

In 70ís VHS (Video Home System) was developed by JVC (Victor Company of Japan Limited) that dominates the video recording market. VHS uses a half-inch wide and 430 meter long magnetic tape to record movies. When CD and VCD were invented VHS tapes lost a large part of its market. CD and VCD use laserdisc technology that makes it smaller and thinner than VHS. When DVD was introduced in 1997, VHS lost its market. DVDs gave consumers the home theater experience that is a major upgrade from magnetic tapes.

DVDs or a digital versatile disk is one of the innovations of the 20th century especially for the entertainment and portable storage industry. DVDs nowadays are everywhere they are used as software storage, high quality movie disc and even private information storage or better known as personal information back-up disk. It can store as much as 4.7 gigabytes of data, that is almost 6 times more than a regular CD and far better than a VHS tape. CDs and DVDs are almost the same on physical attributes and concepts, both are made up of injection-molded piece of clear polycarbonate plastic. The difference is that DVDs has larger data capacity that enables it to store high quality movies with extra features such as subtitles and 5.1 channel Dolby digital surround (almost the same sound in a movie theatre).

Storing data on DVDs is almost the same as storing data on a CD. They are both encoded in the form of small pits and bumps in the tracks of the disc. A DVD is composed of several layers of plastic. Each layer is created by injecting and molding polycarbonate plastic, it creates a microscopic bumps arrange as a continuous and very long spiral track of data (from center to the edge). After the formation of the clear pieces polycarbonate, a thin reflective layer is sputtered onto the disc to cover the bumps. Aluminum is used behind the inner layers and a reflective gold layer is used for the outer layer to allow the laser to focus through the outer and onto the inner layers. After all of the layers are made, each one is coated with lacquer, squeezed together and cured under infrared light.

Movies are encoded onto DVDs using the format that Moving Picture Experts Group established (MPEG). Movies are first encoded to MPEG-2 format and then stored onto the disc that is then decoded by the DVD player upon playing the movie. MPEG-2 encoded movies are capable to be decoded on two standards mainly NTSC (National Television Standards Committee) that shows 30 frames per second and PAL (phase-alternating line) that shows 625 lines per frame at a field rate of 50 fields per second.

Now a new technology is being developed that will replace DVD, the Blue-ray Disc (BD). The BD technology uses blue laser (405 nanometers) that has shorter wave length than red laser (650 nanometers). The shorter the wave length the smaller the beam, the smaller the beam the more precisely it can focus on pits that is twice smaller than the pits of DVD. Because of this, BD can store up to 27 GB of information that is 2 hours of high definition video or about 13 hours of standard video. BD not only has higher capacity but also offers a new level of interactivity. Some of its features is BD user can connect to the internet and download subtitles of their choice and can record one program while watching another on the disc. Blue-ray being a fresh technology cost a lot higher than DVD but manufacturers said that the price will drop to within 10 percent of the price of current DVDs when BD gains popularity. BD can only be played to a BD enable devices. Electronic Manufacturing companies are planning to build BD players that are compatible with both blue and red lasers.

The corporate war for storage media is a never ending research and innovations for humanities need of new innovations.


About the Author: Paul Zantander is an SEO specialist of tvdvdplanet.com ( tv shows on DVD )

the wonder years dvd|seinfeld dvd | boy meets world dvd | sabrina the teenage witch dvd | fresh prince dvd | hogans heroes dvd




Recommended Web Site(s):

Easy Articles Home Page - Articles Directory

Recommended WhmSoft Web Sites, Feeds and WAP Address:

WhmSoft Software Home Page - Software
WhmSoft Services Login Page - Music and Images
WhmSoft Moblog Home Page - Blog - Photo Gallery
WhmSoft Free Online Games Home Page - Flash Games
WhmSoft Services RSS Feed - Daily Music, Image and 3D Flash Animation
Classical Music with Drum RSS Feed - MIDI and MP3 Files
Classical Music with Drum Podcast Feed - MP3 and MP3 Files
WAP / I-Mode / PDAs - Daily Music, Image and Flash Animation

Home Pages:

WhmSoft Free Articles for Reprint Home Page
WhmSoft Services Home Page - Music and Images
Copyright (C) 2006-2017 WhmSoft - All Rights Reserved.