How Streaming Video and Audio Work

In the early days of streaming media -- the mid-to-late 1990s --
watching videos and listening to music online wasn't always fun. It was a little like driving in stop-and-go traffic during a heavy rain. If you had a slow computer or a dial-up Internet connection, you could spend more time staring at the word "buffering" on a status bar than watching videos or lis­tening to songs. On top of that,everything was choppy, pixilated and hard to see.

Streaming video and audio have come a long way since then. According to Bridge Ratings, 57 million people listen to Internet radio every week. In 2006, people watched more than a million streaming videos a day on YouTube . The same year, television network ABC started streaming its most popular TV shows over the Web. People who missed an episode of shows like "Lost" or "Grey's Anatomy" could catch up on the entire thing online -- legally and for free.

Streaming videos directly to computer

The success of streaming media is pretty recent, but the idea behind it has been around as long as people have. When someone talks to you, information travels toward you in the form of a sound wave. Your ears and brain decode this information, allowing you to understand it. This is also what happens when you watch TV or listen to the radio. Information travels to an electronic device in the form of a cable signal, a satellite signal or radio waves. The device decodes and displays the signal.

In streaming video and audio, the traveling information is a stream of data from a server. The decoder is a stand-alone player or a plugin that works as part of a Web browser. The server, information stream and decoder work together to let people watch live or prerecorded broadcasts.

The basic preview of streaming video [windows 7 first look review]

Click here for "Finding and Playing Streaming Video and Audio"

How Touch pad works ?

A touchpad (also trackpad) is a pointing device consisting of specialized surface that can translate the motion and position of a user's fingers to a relative position on screen. They are a common feature of laptop computers and also used as a substitute for a computer mouse where desk space is scarce. Touchpads vary in size but are rarely made larger than 40 square centimeters (about 6 square inches). They can also be found on personal digital assistants (PDAs) and some portable media players, such as the Zune using the Zune Pad.

working and operation click here >>

Optimus keyboard

The Optimus Maximus keyboard, previously just "Optimus keyboard", is a keyboard developed by the Art. Lebedev Studio, a Russian design studio headed by Artemy Lebedev. Each of its keys is a display which can dynamically change to adapt to the keyboard layout in use or to show the function of the key. Pre-orders began on 20 May 2007 for a limited production run from December 2007 to January 2008, with a second batch expected to arrive in February 2008. It first started shipping the week of February 21, 2008.


Overview

The design featured on the studio's website received attention on the web when it was featured on Slashdot on 14 July 2005, and afterwards for a few weeks on other technology websites. The original release date was "end of 2006", however production issues caused the Optimus mini three to be developed first, with the full keyboard delayed until the end of 2007. The keyboard was number 10 in the Wired Magazine 2006 Vaporware Awards and number 4 on the list in 2007 due to its numerous delays and feature reductions.

The Optimus allows for greater user interaction, by dynamically displaying the current function of the keys. For example, when the user presses the shift key, the pictures would change to upper-case versions. It would also make switching between different keyboard layouts (such as English and Cyrillic) rapid, and could make the switch to alternative layouts such as Dvorak easier for people who only have a QWERTY keyboard with no possibility of rearranging the keys. To demonstrate this concept, there are computer renderings showing example layouts for Quake III Arena and Adobe Photoshop.

A newly-revealed (as of January 3, 2008) patent application filed on March 13, 2007 suggests that Apple Inc. may be working on a similar dynamically changeable OLED keyboard


Optimus mini three

Art. Lebedev Studio has released a smaller three-key version of their keyboard, named Optimus mini three. Each of the keys is larger than a standard key. The mini three can be adjusted, through the configuration software, to either a horizontal or vertical orientation.

Initial reviews have been mixed. The keyboard functions as advertised, but it has been criticized for inordinately high CPU usage, slow response time, and buggy configuration software


Optimus Aux

On July 21, 2008, Engadget posted about a new version of the keyboard, named Optimus Pultius. It features 15 OLED keys in a three-by-five arrangement and a USB port. It is expected to be released in late 2008 or early 2009.[6][7] On September 19, 2008, Engadget also reported that the Pultius had been renamed to the Aux[8] and included a new rendering of the rear side showing that there would be two USB ports instead of one.


Variations

Variations with fewer OLED keys will also be available, each upgradeable by replacing static keys with OLED keys after purchase. For keyboards with less than a full complement of OLED "active keys", additional keys can be purchased and installed.

Special Features

Art. Lebedev Studio is expecting to manufacture the keyboard with these features:[3]

* A plastic body (width: 537 mm, depth: 173 mm, height: 38 mm)
* Extra-durable polymer plastic keys (20.2×20.2 mm, visible area 10.1×10.1 mm)
* 48×48 pixel screens, Highcolor mode (65 536 colors, 10 FPS)
* OLED (Organic Light Emitting Diode) screen for keys
* USB 2.0 (or 1.1) connectivity
* 4-5 year lifetime
* A key-saver mode
* Support for animation on keys at 10 FPS minimum
* Ability to form a mosaic using a combination of key images
* Compatibility with Windows XP, Windows Vista and Mac OS X 10.5.1 (and higher).
* An SDK for complete display customization
* Swappable keys and support for keys without displays
* 32 MB SD card for storing basic layouts
* Non-stop glow time at nominal brightness of 20,000 hours, after which display quality will diminish
* An ambient light sensor which can be used to automatically adjust display brightness
* A viewing angle of 160°

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What is phishing?

INTRODUCTION:

In the field of computer security, phishing is the criminally fraudulent process of attempting to acquire sensitive information such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication.



Phishing is a scam in which the attacker sends an email purporting to be from a valid financial or eCommerce provider. The email often uses fear tactics in an effort to entice the intended victim into visiting a fraudulent website. Once on the website, which generally looks and feels much like the valid eCommerce/banking site, the victim is instructed to login to their account and enter sensitive financial information such as their bank PIN number, their Social Security number, mother's maiden name, etc. This information is then surreptitiously sent to the attacker who then uses it to engage in credit card and bank fraud - or outright identity theft.

Many of these phishing email appear to be quite legitimate. Don't be a victim. Look over the following examples of phishing scams to familiarize yourself with the clever techniques used.

Click here to see the examples

How Photocopiers Work ..??

How Photocopiers Work

A typical business photocopier from Xerox

Walk into almost any business office, and you'll probably find a photocopier ("copier") with a line of people waiting to use it. For most businesses, small or large, the copier has become standard equipment, much like having a desk to work at and a chair to sit in.

What if you had to resort to making carbon copies of important documents, as many people did before copiers came along? Or worse, imagine how tedious it would be if you had to recopy everything by hand! Most of us don't think about what's going on inside a copier while we wait for copies to shoot neatly out into the paper tray, but it's pretty amazing to think that, in mere seconds, you can produce an exact replica of what's on a sheet of paper! In this article, we will explore what happens after you press "Start" on a photocopier.

A typical business photocopier from Xerox

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What is Web hosting..?

A web hosting service is a type of Internet hosting service that allows individuals and organizations to provide their own website accessible via the World Wide Web. Web hosts are companies that provide space on a server they own or lease for use by their clients as well as providing Internet connectivity, typically in a data center. Web hosts can also provide data center space and connectivity to the Internet for servers they do not own to be located in their data center, called colocation.

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Operating System (starring Linux)

Introduction:

Every desktop computer uses an operating system. The most popular operating systems in use today are:

• Windows
• Mac OS
• UNIX

Linux is an operating system -- very much like UNIX -- that has become very popular over the last several years.

CLICK HERE TO READ MORE>>>

Get Familiar with these extensions .....

Sound :

MPEG-1/2 Audio Layer 3 (.mp3)
Ogg Vorbis (.ogg)
ASF Audio (.asf,.wma)
Wave form audio format (.wav)
RealAudio (.ra,.rm)
Free Lossless Audio codec(.flac)
Advanced Audio coding (.aac)
MPEG-4 advanced audio coding (.m4a,.mp4)
Musepack (.mpc)
TwinVQ(.vqf)
3GP Music (.3gp)
AC3 Audio File (.ac3)
Adaptive Multi-Rate (.amr)
Adaptive Multi-Rate WB (.awb)
Sun Mircrosystem's audio format (.au,.snd)
Audio Interchange File Format (.aiff)
Purevoice File (.qcp)
AMIGA 8bit sound file (.8svx)
PSION sound file (.prc)
IRCAM sound file (.sf)
soundTool (.sndt)
PSION 8bit sound file (.wve)
soundtracker module (.mod)
FastTracker II module (.xm)
ImpulseTracker module (.it)
ScreamTracker module (.s3m)


Ringtone (Monophonic/Polyphonic) :

MIDI-0 (.mid,.midi)
SP-MIDI (.mid,.midi)
Midi Karaoke (.kar)
MMF/SMAF-1 (.mmf,.smaf)
Qualcomm CMX 3.0 (.pmd)
Motorola Ringtone (.mot)
Sagem Ringtone (.sagem)
Sagem Ringtone (.sagem21)
Ericsson emelody (.emy)
iMelody Ringtone Format (.imv)
Ringtones text transfer language (.rttl,.rtx)
Nokia phone Ring Tone (.nokia,.ott)
Nokia Phone Ring Tone (.noktxt)


Image :

Joint photographic experts group (.jfif,.jif,.jpe,.jpeg,.jpg)
Windows bitmap (.bmp)
Graphics interchange format (.gif)
Truevision TGA (.tga)
Portable network graphics (.pgm)
AVS X image (.avs)
Kodak Cineon Image Format (.cin)
ZSoft IBM PC multi-page paintbrush (.dcx)
Windows device independent bitmap (.dib)
SMPTE digital moving picture exchange (.dpx)
Microsoft icon (.ico)
Magick image file format (.miff)
On-the-air-Bitmap (.otb)
Palm pixmap (.palm)
Portable bitmap format black/white (.pbm)
Xv's Visual Schnauzer thumbnail (.p7)
Photo CD (.pcd)
Zsoft IBM PC Paintbrush file (.pcx)
Apple Mcintosh QuickDraw (.pict)
Portable Pixmap format - color (.ppm)
Adobe Photoshop bitmap file (.psd)
Photo CD - sRGB color (.pcds)
Irix RGB image (.sgi)
SUN Raster Image (.ras,.sun)
X Windows system bitmap black/white (.xbm)
X Windows system pixmap (.xpm)
CCIR 601 4:1:1 (.yuv)


Vector Document :

Windows Metafile (.wmf)
Scalable Vector Graphics (.svg)
Magick Vector Graphics (.mvg)
AutoCAD Interchange Format (.dxf)
Enhanced Metafile (.emf)
Encapsulated Postscript (.eps)
Computer Graphics Metafile (.cgm)
OS/w Metafile (.met)
OpenOffice 2.0 Draw Document (.odg)
OpenOffice 2.0 Draw Template (.otg)
OpenOffice 1.0 Draw Document (.sxd)
OpenOffice 1.0 Draw Template (.std)


Document :

Text files (.txt)
Url address (web) (.url)
HyperTextMarkup Language (.htm,.html)
XHTML (.xhtml)
Rich Text Format/MS Word (.rtf)
Portable Document Format (.pdf)
Adobe Postscript (.ps)
Microsoft Word (.doc)
MS Word template (.dot)
OpenOffice 2.0 Text Document (.odt)
OpenOffice 2.0 Text Template (.ott)
OpenOffice 1.0 Text Document (.sxw)
OpenOffice 1.0 Text Template (.stw)
AportisDoc Palm DB (.pdb)
Starwriter vorlage/Template (.vor)
PocketWord (.psw)
Wordperfect 6 (.wpd)
MS Word 2003 XML (.xml)

Data :


Data Interchange Format (.dif)
dBASE (.dbf)
Microsoft Excel (.xls)
MS Excel Vorlage/Template (.xlt)
Pocket Excel (.pxl)
SYLK (.slk)
Lotus 1-2-3 (.123,.wk1)
StarCalc (.sdc)
StarCalc Template (.vor)
OpenOffice 2.0 Spreadsheet (.ods)
OpenOffice 2.0 Calc template (.ots)
OpenOffice 1.0 spreadsheet (.sxc)
OpenOffice 1.0 calc template (.stc)


Mathematics :

MathML (.mml)
StarMath (.smf)
OpenOffice 2.0 Math (.odf)
OpenOffice 1.0 Math (.sxm)

Presentation :


Microsoft Powerpoint (.ppt)
Microsoft Powerpoint Template (.pot)
StarImpress 5.0 (.sdd)
StarImpress 5.0 Template (.vor)
StarImpress 4.0 (.sdd)
StarImpress 4.0 Template (.vor)
OpenOffice 2.0 Impress (.odp)
OpenOffice 2.0 Impress Template (.otp)
OpenOffice 1.0 Impress (.sxi)
OpenOffice 1.0 Impress Template (.sti)


Compressed archives:

Data compression (.zip)
7Z Archive (.7z)
LHA Archive (.lha,.lzh)
Roshal ArchiveArchive (.rar)
Tape ARchive (.tar)
TAR Gzip Compressed archive (.gz)
BZ2 compressed archive (.bza)
Deepfreezer YZ1 archive (.yz1)

Movie:

Windows Media Video (.wmv)
3GP/3G2 Video (.3gp)
Audio Video Interleave (.avi)
Matroska (.mkv)
Apple Quicktime (.mov)
Motion Picture Expert Group (.pg)
Ogg vorbis Compressed video (.ogm)
MPEG-4 (.mp4)
Flash Video (.flv)
DVD Video Object (.vob)
FLIC Animation (.fli)
Digital Video (.dv)
ASF Video (.asf)
Google Video File (.gvi)

Browse your friend computer from ur home

Hello guyz .. this is the software which u can browse your friends computer through your PC and even u can do every thing. Its very easy and useful for us to help our friends with their computer problems.This software allows you to access your friend's computer and then solve the problem by sitting at your home no matter if u r on other OTHER end of the world. Just go to this link download and install that software and have fun...

click here for link

and even your friend should install it .......

click here "How to install"

Free Vista ShutdownTimer

Vista Shutdown timer is a free software...


Screen shot:

MORE SCREEN SHOTS

click here to Download Vista-Shutdown Timer 1.6.5

Info on speech recognition

INTRODUCTION:

Today, when we call most large companies, a person doesn't usually answer the phone. Instead, an automated voice recording answers and instructs you to press buttons to move through option menus. Many companies have moved beyond requiring you to press buttons, though. Often you can just speak certain words (again, as instructed by a recording) to get what you need. The system that makes this possible is a type of speech recognition program -- an automated phone system.

You an also use speech recognition software in homes and businesses. A range of software products allows users to dictate to their computer and have their words converted to text in a word processing or e-mail document. You can access function commands, such as opening files and accessing menus, with voice instructions. Some programs are for specific business settings, such as medical or legal transcription.

People with disabilities that prevent them from typing have also adopted speech-recognition systems. If a user has lost the use of his hands, or for visually impaired users when it is not possible or convenient to use a Braille keyboard, the systems allow personal expression through dictation as well as control of many computer tasks. Some programs save users' speech data after every session, allowing people with progressive speech deterioriation to continue to dictate to their computers.

For more info click here

Working Of CRT..

CRT Monitors

A CRT [Cathode Ray Tube]monitor contains millions of tiny red, green, and blue phosphor dots that glow when struck by an electron beam that travels across the screen to create a visible image. The illustration below shows how this works inside a CRT.



The terms anode and cathode­ are used in electronics as synonyms for positive and negative terminals. For example, you could refer to the positive terminal of a battery as the anode and the negative terminal as the cathode.

In a cathode ray tube, the "cathode" is a heated filament. The heated filament is in a vacuum created inside a glass "tube." The "ray" is a stream of electrons generated by an electron gun that naturally pour off a heated cathode into the vacuum. Electrons are negative. The anode is positive, so it attracts the electrons pouring off the cathode. This screen is coated with phosphor, an organic material that glows when struck by the electron beam.

There are three ways to filter the electron beam in order to obtain the correct image on the monitor screen: shadow mask, aperture grill and slot mask. These technologies also impact the sharpness of the monitor's display. Let's take a closer look at these now.

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INTEL 8085 Microprocessor

INTEL 8085:


The Intel 8085 is an 8-bit microprocessor introduced by Intel in 1977. It was binary-compatible with the more-famous Intel 8080 but required less supporting hardware, thus allowing simpler and less expensive microcomputer systems to be built.

The "5" in the model number came from the fact that the 8085 required only a +5-volt (V) power supply rather than the +5V, -5V and +12V supplies the 8080 needed. Both processors were sometimes used in computers running the CP/M operating system, and the 8085 later saw use as a microcontroller (much by virtue of its component count reducing feature). Both designs were eclipsed for desktop computers by the compatible but more capable Zilog Z80, which took over most of the CP/M computer market as well as taking a large share of the booming home computer market in the early-to-mid-1980s.

INTEL 8085 Mp

The 8085 had a very long life as a controller. Once designed into such products as the DECtape controller and the VT100 video terminal in the late 1970s, it continued to serve for new production throughout the life span of those products (generally many times longer than the new manufacture lifespan of desktop computers).

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What is a Microprocessor ? [Deep Explanation]

Intel 4004 first Microprocessor

A microprocessor incorporates most or all of the functions of a central processing unit (CPU) on a single integrated circuit (IC). The first microprocessors emerged in the early 1970s and were used for electronic calculators, using binary-coded decimal (BCD) arithmetic on 4-bit words. Other embedded uses of 4- and 8-bit microprocessors, such as terminals, printers, various kinds of automation etc, followed rather quickly. Affordable 8-bit microprocessors with 16-bit addressing also led to the first general purpose microcomputers in the mid-1970s. The recent development of fast microprocessors is also linked to the growing popularity of fourth generation programming languages.

Computer processors were for a long period constructed out of small and medium-scale ICs containing the equivalent of a few to a few hundred transistors. The integration of the whole CPU onto a single VLSI chip therefore greatly reduced the cost of processing capacity. From their humble beginnings, continued increases in microprocessor capacity have rendered other forms of computers almost completely obsolete ( history of computing hardware), with one or more microprocessor as processing element in everything from the smallest embedded systems and handheld devices to the largest mainframes and supercomputers.

Since the early 1970s, the increase in capacity of microprocessors has been known to generally follow Moore's Law, which suggests that the complexity of an integrated circuit, with respect to minimum component cost, doubles every two years. In the late 1990s, and in the high-performance microprocessor segment, heat generation (TDP), due to switching losses, static current leakage, and other factors, emerged as a leading

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515 Tutorials in one pack. *U Never Wanna Miss That*

Here is the 515 tutorials of my collection i think this may help you ...all material is in text format only....

Click here for the list of Tutorials

How to solve basic Dual Boot Issues

These are the collection for having Dual Booting problems...I think this may solve that

Case 1:
You have Dual Boot Win7 and XP/Vista and you lost the XP/Vista boot option at startup, but Win7 boots fine.

Solution:
1.) Start Win7.

2.) If you can see your XP/Vista partition in Computer, write down the drive letter (e.g. D)

3.) If you can't see the XP partition and you see all others but this one, open Control Panel - Administrative Tools - Computer Management -> Disk Management(left pane) and right-click the partition without a drive letter, choose "Change drive letters and paths" and assign a drive letter for the partition, e.g. D:

4.) Open an elevated command prompt and type the following lines followed by Enter for each line, changing the drive letter D: (in blue) with the one on your XP/Vista partition:

FOR RESTORING XP:


bcdedit /create {ntldr} /d "Windows XP"

bcdedit /set {ntldr} device partition=D:

bcdedit /set {ntldr} path \ntldr

bcdedit /displayorder {ntldr} /addlast


FOR RESTORING VISTA:

bcdedit /copy {current} /d "Windows Vista"


(You will get a response saying that a new {UUID} was created successfully. Write down or copy the new UUID.)

bcdedit /set {place_new_UUID_here} device partition=D:
bcdedit /set {place_new_UUID_here} osdevice partition=D:

5.) Done

Case 2:
You have Dual Boot Win7 and XP/Vista and you lost the Win7 boot option at startup, but XP/Vista boots fine.

Solution:

1. Insert the Win7 Installation DVD and boot your computer with it (as if you were making an installation).

2. At the first screen , select your language etc and press enter.

3. At the second screen, click "Repair Computer" at the bottom left.

4. Wait until startup repair is finished and reboot.

5. Done. You can now boot Win7.

Case 3: You have restored booting Win7 using the Case 2 method or other way, but now you've lost XP/VISTA .

Solution: Follow Case 1 Solution.

Case 4: You want Win7/Mac Dual Boot.

Solution: Follow these instructions: OSX and Windows 7 Dual Boot Hope it helps

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Overclocking

Info on overclocking:

Introduction:

Many people probably don't know what overclocking is but have possibly heard the term used before. To put it in its simplest terms, overclocking is taking a computer component such as a processor and running at a specification higher than rated by the manufacturer. Every part produced by companies such as Intel and AMD are rated for a specific speeds. They have tested the capabilities of the part and certified it for that given speed. Of course, most parts are underrated for increased reliability. Overclocking a part simply takes advantage of the remaining potential out of a computer part that the manufacturer is unwilling to certify the part for but it is capable of.

click here to read more

Info on top 10 viruses in this world

Introduction:

Computer viruses can be a nightmare. Some can wipe out the information on a hard drive, tie up traffic on a computer network for hours, turn an innocent machine into a zombie and replicate and send themselves to other computers. If you've never had a machine fall victim to a computer virus, you may wonder what the fuss is about. But the concern is understandable

-- according to Consumer Reports, computer viruses helped contribute to $8.5 billion in consumer losses in 2008. Computer viruses are just one kind of online threat, but they're arguably the best known of the bunch.

Click Here to see Description on Top 10 Viruses

Video tutorials for Java

Video tutorials from VTC.com

Click Here for More Details and Downloads

Easy Torrent Explained

Torrents Explained...

Torrent is a very small file whose file name ends with " .torrent " extension. It (A torrent file) contains all the information about the file to be downloaded like file name, file size, date of creation and some other information. A torrent file also contains a list of trackers. You can download very large files like games, movies, videos etc very easily using torrents. You can also use torrents to share files with your friends instead of sharing files through messengers.

What is a tracker ?
A tracker is a computer on the internet. It comes into action as soon as you open the .torrent file using a torrent client. Tracker manages the torrent file on the internet. Tracker also allows the parts of the file to be downloaded from more than one server.

What is a seeder ?
A seeder is a person who has more than 0% of the file associated with the torrent file.

What is a leecher ?
A leecher is a person who is attempting to download the files through torrent.

The downloading time will depend on the number of seeders and leechers. More the seeders, lesser the time and more the leechers, more the time.

How to download files using torrent ?

It is very easy to download through torrents. First of all download and install a torrent client software. You need this software to open torrent files. uTorrent is one of the best torrent client software. Now find a file that you want to download from a torrent search engine.

After you find the desired file, the torrent search engine will allow you to download a .torrent file. Download that torrent file. Now open this torrent file using uTorrent (Or any other client software) and it will start download the file for you.