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Easy Tutorial and Guide Use a Digital Voice Recorder

Digital voice recorders are useful compact devices, which are used for recording voice data. They have an improved sound quality due to the advanced sound technology. Scroll down to learn more about this device along with information on how to use it.

Well, this device functions almost in the same way as a tape recorder, except that, it doesn’t have a tape. As the recording and listening process is easy and quick, it is widely used by students, interviewers, academicians, journalists, etc., to record their voices and re-record them if they choose to. Digital voice files are incorporated to record the voice data. The voice data is stored in the form of discrete numbers, and the value depends on the air pressure involved during the voice modulations. But the input is a continuous stream of analog data. The analog signal is converted into digital signal by Analog-to Digital Converter (ADC). The output of the ADC is in the form of stream data consisting of 0s and 1s, which is stored in the memory and later converted to analog data. It is

Android Game Development

If you want to successful build  games, you need to explore the field of game engines that will provide you the best framework. The crucial part of developing a game is choosing the right tool, and it follows few factors. Factors like: game’s featured set, capabilities of your target platform, cost and time constraints and also familiarity with the tool. Keeping all that in mind, we have discussed here the top gaming engines for Android game development.

1.    Unity3D

Unity3D is very popular and common choice among game developers. Unity3D game engine helps to create 3D or 2D games with multi-platform support. This game engine also provides a free indie version along with the commercial license version. Unity3D helps you to design beautiful 3D content and also provides cross-platform publishing. It supports a single integrated development environment (IDE) for a variety of platforms. Besides, developers also enjoy the great graphics quality of Unity3D as it supports audio and visual effects.

2.    Cocos2d-x

An open source framework Cocos2d-x is written in C++. This game engine is basically

Amazing Facts About Palm Sander

This is the age of smartness and smoothness. Nowadays only good quality and long life duration are not enough because of attractiveness is another requirement. Whether you make any wooden furniture, frames or any plastic furniture or something with both components, it is one of the vital need to make them smooth and attractive. Unless bringing smoothness and attractiveness your work will be just waste of your money even that would be a reason of customer dissatisfaction.

A palm sander is the most commonly using a sander with has a variety of uses especially while you are thinking to make your wooden components more smoother and shiny. Among other benefits of the sander includes following.


Power is the main fact for a palm sander. When you operate a sander over wood, it should have the ability to compress the wood and bring a sliced part of components from the top of the wood. However different wood has different type and thickness, and your sender should have the ability to work over any kind of wood. Unless having

Learn Computer Programming

The standard way of learning to program is to get admission into a college and get a degree in computer science. However, there are many who can never make it to college, despite having the skills and the talent for analytical thinking. I have written this article for those of you who never went to college but have discovered the beauty of programming and would like to master it on your own. This is possible today as Internet and the open source movement has created a programming culture online, which can guide you in the process. With self discipline and persistence, you can teach yourself programming and enjoy writing your own software.

How to Learn Computer Programming Without a College Degree?

Computer science is a tough field to master, but it can give you the most enjoyable and creative experiences ever. Here are a few guidelines on how to become a computer programmer.

Learn Programming Languages

Firstly, get hold of a desktop or laptop computer, which enables you to read and execute your programs. Programing is all about learning to communicate with your computer hardware to accomplish various computing tasks. Computer only understands machine language, written in 1s and 0s. For us humans, to

Technology Changed Education

The omnipresence of technology is both outstanding and overwhelming. It has become our second nature that we use instinctively without even realizing how profound an influence it wields on the various aspects of our life. In this Buzzle article, we discuss how technology has changed one such important facet, i.e., education.
This millennium stands testimony to the fact that the human mind is one of the new frontiers that we are trying to conquer. Breathtaking technologies are being introduced almost every year, and it seems we’re on the way to make our life easier and more comfortable. Education – that is a reflection of the development of a society and is the foundation stone of the bright future of a nation that has undergone drastic changes in the last fifty years.

Positive Effects of Technology on Education

Talking in a positive sense, the impact of technology on education has been phenomenal. Using Internet and computers as en effective medium to establish communication between schools, teachers, students and parents; educational institutes have been able to handle many issues that were previously not handled with ease due to geographical limitations or lack of adequate training technologies.

Enhanced Teaching and Learning

Technological developments like digital cameras, projectors,

A Brief Explanation of How Do Fire Alarms Work

Fire alarms are small devices that are triggered off when they sense smoke that enters a special chamber inside them. Read this article to know more about this topic.
True, these home security systems (home alarm systems) keep us safe from external intrusion. But what about the threats that lurk inside our houses all the time as we go about doing our daily chores? One such threat is fire.

What is a Fire Alarm?

A fire may break out in one room and then spread stealthily to other rooms without any noise or warning. By the time we realize, the raging flames may have engulfed the whole house. However, the device that amazingly gives us a warning signal against the break out of a fire is the small alarm that lies inconspicuously attached to the ceiling of a room.


There are mainly two types of smoke alarms (fire alarms) depending upon the type of detector that is used in them. The smoke detectors used are the ionization and the photoelectric detectors. Most fire alarms use either one or both the types.

Ionization Detectors

They have a small quantity of Americanum-241 that serves as the source of ionizing radiation. The alpha particles that are constantly released

Benefits and Action Plans for Green Computing

Green computing is the practice of using computers and related technology in an environmentally responsible manner. It aims at radically changing the way we go about computing, using the electronic devices and following strict energy conservation guidelines, so as to minimize the damage caused to the environment by computers. This activity is not just limited to saving electricity, but also takes a holistic approach towards environment-friendly use of computers. Devising innovative and environment-conscious techniques for energy generation is also one of its aspects.

Advantages of Green Computing
There are many innovative technologies and tools which make green computing a viable option for judicious energy usage and environmental conservation. The advantages offered by such technologies are discussed in these points.

Cloud Computing

Touted as a technology that could save substantial amount of energy, cloud computing involves replacing regular servers with the virtual ones. The different areas where cloud computing finds application include data storagenetworkingoperating systemssoftware applications. As per studies conducted by the WSP Environment & Energy, it is possible to save as much as 90% of the energy spent in a company of 100 employees. The AT&T-supported Carbon Disclosure Project reported that big US corporations can save as much as $12.3 billion (by the year 2020) if they

Efficient Types of Capacitors

Capacitor is an essential part of every electronic circuit system. It can be classified based on the type of material used in the electrical insulator.
They are used extensively in electronic circuits with the purpose of blocking direct current (DC), thereby allowing alternate current (AC) in filter networks and outputs of power supplies.


These are the most popularly used capacitors, which have a wide tolerance capacity ((-)50% – (+)100%). This type consists of two plates (made of aluminum or tantalum), which are wound around each other. The dielectric filled between these plates is mostly a thin layer of oxide (less than 10 microns). The two popular kinds available in the market are aluminum and tantalum. These are polarized and hence proper care must be taken when fixing them in electronic circuits. If connected incorrectly, they may get damaged.
Usage: They have a large capacitance value. Hence, they are widely used as coupling capacitors in audio applications and in smoothing applications for power supplies to reduce ripple voltages.

These are the simplest form of capacitors, which contain a set of moving plates. These plates mesh with another set of fixed plates. The position of the moving plates with respect to that

Become a Computer Programmer

You are reading this web page right now because of millions of lines of programming code, written to make the working of the world wide web, the web browser, and your operating system possible. The virtual world of the Internet and the graphic user interface of your operating system, is a product of programming code.

Becoming a programmer is all about learning to solve problems creatively and analytically. Every advanced electronic device has embedded software inside, which makes its working possible. Right from your digital watch, to your smartphone and your computer, embedded programming code, along with the embedded computer chips, make all the functioning of these devices possible. The unsung but well-paid heroes, who put in their logic, in creation of these software programs, are the programmers.
Becoming a Programmer
Know what you are getting into before deciding to become a programmer. What does it mean to become one? It is about creating an algorithm or a sequence of instructions, for the

Use the Print Screen Key

The print screen key is a seemingly dormant one, and it is rarely used. Different computer manufacturers have different methods of naming this key, but its location is pretty much constant in every keyboard. Its position is right after the function keys, and there are many people who think that pressing it directly commands the computer to take a printout of the current screen. This is not true, as its function is to take a screen snapshot, and to store it on your clipboard for further use. The clipboard is an invisible medium that comes into play, whenever we are transferring files or folders. Whenever we cut or copy something, the item is temporarily stored on the clipboard, before we actually paste it elsewhere.

Open the screen that you wish to copy.
Now, press the print screen key (‘PrtScn’), and the mirror image of that screen will be stored on your desktop.
Open an image editing application like Microsoft Paint.
Paste the screenshot in this application either by pressing Control + V, or by going to the Edit menu and selecting Paste.
You can either enlarge this image, or you can even crop it, according to your requirement.
Save the

Check Computer History

If a computer is being used by multiple users, the administrator will want to keep a watch on the activities that are carried out from that machine. Monitoring keeps a check on whether a malicious or potentially dangerous or unwanted file has been downloaded from the Internet into the system. At the same time, it also helps parents to monitor children’s activities. This article will provide you the ways of how to check computer history.


Checking browsing data is not a very lengthy process. Here is how to go about it in Windows Vista. In Internet Explorer, follow the simple steps given below.
In Internet Explorer 7, click on the Tools tab.
In the drop-down box that appears, you will come across Explorer Bar tab. Move your mouse pointer over the tab.
Now you will see History tab there. Click on it.
A sidebar will appear, in which there will be browsing data according to the date.
If you click on the particular date, you will be able to see the list of websites that were visited.
Scroll down to see the URL or name of every website that was visited.

On Mozilla FirefoxMethod # 1
Double click on Mozilla Firefox to

Advantages of Information Technology

These include storage and protection of content, processing and transmitting of dedicated information and the secured retrieval of information, when and as required. IT promotes computing technology, covering everything from installing applications to developing databases.

Why is Information Technology Important

All our work related applications are now completely automated, thanks to the IT sector. IT professionals are people involved in essential management of sensitive data, exclusive computer networking and systems-engineering. The advancement of the IT sector has resulted in automated:
Administration of entire systems.
Production and manipulation of sensitive information.
Cultural development and communication.
Streamlining of business processes and timely upgrades.
Advantages of IT

• Globalization
True globalization has come about only via this automated system. The creation of one interdependent system helps us to share information and end linguistic barriers across the continents. The collapse of geographic boundaries has made the world a ‘global village’. The technology has not only made communication cheaper, but also possible much quicker and round the clock. The wonders of text messages, email and auto-response, backed by computer security applications, have opened up scope for direct communication.

• Cost-effective
Computerized, internet business processes have made many businesses turn to the Internet for increased productivity, greater profitability, clutter free

Use Usenet

It was and is still used for file sharing, discussion on various topics, and is still popular among geeks as a forum. Many people don’t know that it is still around and its power can be harnessed to gain specialized data and information.

Using it

Usenet predates Internet technology and has been around since the 1970s. As a resource, it is still quite alive and kicking today, due to its huge amount of content in the form of binary files which can be downloaded quite fast and specialized newsgroups.
It is controlled by a decentralized set of connected servers that host newsgroups and data files. Be it any topic of your interest, it has newsgroups numbering in thousands, catering to it. It is not a peer-to-peer service, but a paid one. Here are some tips on using it for those of you, who want to connect to this enriching source of information.

Select a Service Provider
First and foremost, to use Usenet, you must connect to a service provider, who can grant you access to its resources. For that, you must have a registered account with one of them. Many Internet service providers offer accounts or you may gain access through third-party sources.

Information Infrastructure Design

Information technology (IT) involves the management of information on computer-based information systems. IT deals with the use of computers to store, process, and retrieve information. The construction and design of a safe, reliable, and an always-available information infrastructure is an important constituent of information systems.

Information Infrastructure
It is the collection of communication networks and the software associated with it. It refers to networks and software, which support interaction among people and organizations or the currently available networks and the prospective facilities that they will make available. It includes the Internet, the telecommunication networks, and the embedded systems as also computers. Internet that is regarded as the network of networks is the information infrastructure of today. It is a collection of interconnected computer networks that transmit data in the form of packets using the Internet Protocol. Each of the networks carries information and services like mail and file transfer. World wide web, a collection of documents and other resources, is a service offered by the Internet.Information infrastructure design is concerned with issues like privacy, security, translation, right to information, and most importantly, software and hardware compatibilities. Let us look at each of them.

Privacy: Privacy of information is related to the collection

Virtual Reality Technology

Remember watching “The Matrix” for the first time? Remember the mixed emotions of awe and excitement you felt at that time? Virtual reality technology is no more a thing of fiction these days! Let’s find out more about this coming-of-age technology and find out some fascinating facts about it.So, what is all this hype and hoopla over the likes of virtual and augmented reality technology all about? Is it really possible to experience a Matrix-like phenomenon in the real world? To continue with the Matrix theme, is the world, as we know it, the REAL world? Well, that was a rhetoric question meant to tease the technologically curious nerve inside you! Or was it? Okay, enough playing! It’s time to get down to the brass tacks now! So what is this technology all about? Let’s get us some answers!

A Layman’s Take on Virtual Reality

A computer simulated environment that either resembles or substitutes the physical reality so well that the viewer is left wondering whether what he sees or feels is the real thing or if it’s all in his mind is known as virtual reality. The concept of virtual reality technology includes all such computer and IT based technologies that can perfectly simulate

Speech Rate Conversion Technology

The world is moving at a faster pace. Transportation is faster, communication is faster, and so on. Some even feel that people are speaking faster. This makes it hard for some of us to keep pace. The Science and Technical Research Laboratories of Japan’s public broadcaster, NHK, has developed a device that they feel will help (at least with how fast people seem to be talking). They’ve created a speech rate conversion technology that is designed to be used in a couple of different ways.

Have you ever listened to a recording played at a fast speed? This is commonly done in video or audio editing to search through a large volume of material in a short time. Normally, when speech is sped up, the pitch is also changed, causing the recorded voices to sound like the chipmunk characters that some of us listened to, or watched, as children. Even when the pitch is shifted to restore it to its original level, it is often difficult to understand the individual words. The system designed by Japan’s STRL has changed that.

Their new technology maintains the original timber and pitch of the speech, while playing it back at a faster rate. The playback

Security of the Future

Pass-thoughts: The Concept

A recent research by the The Berkeley School of Information, University of California, has revealed that it might be possible for us to access our accounts by simply thinking of our passwords instead of typing them. Electroencephalograms (EEGs) or brainwave computer authentication shall help you access the accounts by collecting the data we imagine in our minds! The scope of converting passwords into pass-thoughts, by using relatively affordable biosensor technology, could well become our next virtual reality.

This extraordinary project was led by professor John Chuang, and his students Hamilton Nguyen, Charles Wang, and Benjamin Johnson. The findings of the research were presented at the Seventeenth International Conference on Financial Cryptography and Data Security, during the 2013 Workshop on Usable Security.

Research Using the NeuroSky MindSet Brainwave Sensor

The NeuroSky MindSet device consists of a single sensor that rests against the forehead, and was used for carrying out this research. This wireless headset looks similar to any normal Bluetooth, except that it has the added feature of EEG sensors which read the brainwave signals of the person wearing the headset. The team carried out experiments to assess whether the computer was able to distinguish between the brainwave patterns of

Pass-thoughts: Security of the Future

Even though we have come across many real and fictional biometric possibilities as a means of making our security systems fail-safe, many of the existing techniques have failed to impress. The reason being, fingerprint scans, voice recognition, and retina scans, are cumbersome, slow, and a luxury that not everyone can afford.

Now how about pass-thoughts? What is this concept in the first place? And how does it exactly work? Let’s see…

Pass-thoughts: The Concept

A recent research by the The Berkeley School of Information, University of California, has revealed that it might be possible for us to access our accounts by simply thinking of our passwords instead of typing them. Electroencephalograms (EEGs) or brainwave computer authentication shall help you access the accounts by collecting the data we imagine in our minds! The scope of converting passwords into pass-thoughts, by using relatively affordable biosensor technology, could well become our next virtual reality.

This extraordinary project was led by professor John Chuang, and his students Hamilton Nguyen, Charles Wang, and Benjamin Johnson. The findings of the research were presented at the Seventeenth International Conference on Financial Cryptography and Data Security, during the 2013 Workshop on Usable Security.

Research Using the NeuroSky MindSet Brainwave Sensor

The NeuroSky

Touchscreen Technology

How Touchscreens Work
A touchscreen has 3 main components: a touch sensor, a controller, and a software driver. To make a complete touch input system, a touchscreen is combined with a display and a PC or other device.
1. Touchscreen Sensor
This is a glass plate having a touch responsive surface. The sensor is positioned over a display screen, so that the responsive area of the plate covers the maximum viewable area of the video screen. There are a number of touch sensor technologies available in the market today, each using a different approach to detect touch input. The sensor has an electric current or signal passing through it and touching the screen causes a change in the voltage or signal. This voltage or signal change is used to find out the location of the touch to the screen.
2. Controller
The controller used in a touchscreen is a small PC card that interconnects between the touch sensor and the PC. The controller takes data from the touch sensor and converts it into information that PC can understand. For integrated monitors, the controller is usually installed inside

What is Swype Texting?

A user no longer has to press or tap the letter on the keyboard to enter a text in the text-box, but all one has to do is, in one continuous motion slide the finger over the letters on the keyboard and the input of the words fall out instantly. In short, it’s the technology of dragging your finger from letter to letter on the keyboard to create words.

Swype Texting

The technology of Swype has been invented for about 7-8 years now, but has been implemented recently in hand-held cell phone devices and similar applications. Swype is a brand new technology introduced by Swype Inc., that runs on the idea of swiping characters (text) on the keyboard instead of specifically pressing individual letters on the keyboard. You can refer Swype to the technology of predictive texting in your cell phones, which catches the word pre-hand before you finish typing the entire word. Likewise, the key advantage of using Swype is, it expends an error-correcting algorithm plus an enhanced language model in order to predict the user’s intended word. In this case, a user has to be absolutely random and rapid while tracing a path on the keyboard and within a fraction of a