martes, 22 de marzo de 2011

Video Formats-FAST FACTS


---DVD---
  1. DVD discs offer higher storage capacity than compact dics while having the same dimensions.
  2. DVD-ROM because data can only be read and not written nor erased.
  3. he DVD is made of a spiral groove read or written starting at the center. The form of the groove encodes unalterable identification data known as Media Identification Code
---Mini DV---
  1. is a DVd disc having 8 cm in diameter.
  2. A MiniDV can be played back in most DVD players that are tray loaded.
Physical sizeSingle layer capacityDual/Double layer capacity
12 cm, single sided4.7 GB8.5 GB
12 cm, double sided9.4 GB17 GB
8 cm, single sided1.4 GB2.66 GB
8 cm, double sided2.8 GB5.2 GB

---.AVI---

  1. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback
  2. AVI divides a file's data into blocks, or "chunks." Each "chunk" is identified by a FourCC tag.
  3. AVI is not intended to contain variable frame rate material.
---.MPEG---
  1. The MPEG compression methodology is considered asymmetric as the encoder is more complex than the decoder
  2. MPEG is a working group of experts that was formed to set standards for audio and video compression and transmission.
MPEG groups of standards[25][26][27][46][47]
Acronym for a group of standards↓Title↓ISO/IEC standards↓First public release date (First edition)↓Description↓
MPEG-1Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/sISO/IEC 111721993
MPEG-2Generic coding of moving pictures and associated audio informationISO/IEC 138181995
MPEG-3abandoned, incorporated into MPEG-2
MPEG-4Coding of audio-visual objectsISO/IEC 144961999
MPEG-7Multimedia content description interfaceISO/IEC 159382002
MPEG-21Multimedia framework (MPEG-21)ISO/IEC 210002001
MPEG-AMultimedia application format (MPEG-A)ISO/IEC 230002007
MPEG-BMPEG systems technologiesISO/IEC 230012006
MPEG-CMPEG video technologiesISO/IEC 230022006
MPEG-DMPEG audio technologiesISO/IEC 230032007
MPEG-EMultimedia MiddlewareISO/IEC 230042007
(none)Supplemental media technologiesISO/IEC 291162008will be revised in MPEG-M Part 4 - MPEG extensible middleware (MXM) protocols
MPEG-VMedia context and controlISO/IEC FDIS 23005[37]under development
MPEG-MMPEG extensible middleware (MXM)ISO/IEC 23006[42]2010
MPEG-URich media user interfacesISO/IEC 23007[44]2010
---.DIVX---
  1. DivX 6 expanded the scope of DivX from including just a codec and a player
  2. It is one of several codecs commonly associated with "ripping", whereby audio and video multimedia are transferred to a hard disc and transcoded
  3. This new "DivX Media Format" also came with a "DivX Ultra Certified" profile, and all "Ultra" certified players must support all "DivX Media Format" features.
--MP4--
it is fully compatible and still is in development. It is able to mix different types of data like video, audio and speech.



FOR FURTHER INFOMATION CHEK OUT THIS LINK
http://www.asharer.com/wp-content/uploads/2010/11/flash-swf-video-format.jpg

martes, 1 de marzo de 2011

Linux,Moodle and Open Office



MOODLE
Moodle stands for Modular Object-Oriented Dynamic Learning Environment, and it is a free and open-source learning software platform. Martin Dougiamas iniatially startedto develop it to help educators create online courses. The enterprise is located in Wester Australia and most of the development of MOODLE is done there.

LINUX
Linux refers to all the Unix-like family of computer operating systems. It is functional in a wide range of computer hardware. Linxus is a leading server operating system and runs the 10 fastest supercomputers in the world. Linux is one of the most prominent examples of free and open source software, for it can be used, freely modified, and redistributed, both commercially and non-commercially,

OPEN OFFICE
Open Office is sometimes called OOo but its actual name is Open Office.org It is an open-source application with its main components in word processing, spreadsheets, presentations, graphics and databases. It is a free software and is available and various operating systems. In November 2009 it already supported 110 languages. It started as StarOffice by StarDivision and acquired by Sun Microsystems in August 1999. The source code was released in July of 2000. It is primarily sponsored by Oracle Coproration (who bought Sun Microsystems).

OUR MOODLE!!