Showing posts with label Tutorial. Show all posts
Showing posts with label Tutorial. Show all posts

Stop Receiving E-mail Notifications From Facebook

Generally your mail inbox is already full and we generally don’t maintain it properly adding to these is the Email notification from the Facebook .These tend to make the inbox crowded with less than a day as you may have 1000 friends which may lead to huge number of Email notifications with in a single day.



 Steps To Stop Receiving Email Notifications:




  1. Login into your Facebook Account.

  2. Get into the Group Homepage which you don’t want to receive Emails from.

  3. At the upper right corner you will see the notification icon, click on it and you can click settings from the available options of  on,off,settings.You will get a small pop up window   where you can remove the tick mark on the “Also send an Email Notification to your mail-id”.



 You can revert the action by making a tick once again in the check box.

Sunday, 18 December 2011 | posted in , | 0 comments [ More ]

Disable Facebook Notification


Facebook is a good social networking site however the everybody get annoyed (or) irritated when their Facebook page shows notifications. This can be even worse if these notifications are made by unwanted people or you may don’t like them.


 Steps To Disable Facebook Notification:




  1. Login into your Facebook account.

  2. Get in the Group Homepage that you don’t want to get notification’s from.

  3. At the upper right corner you will see the notification icon, click on it and you can select OFF to disable it.



 Once disabling the notification ,if you need to receive notification then you can revert the steps.

Saturday, 17 December 2011 | posted in , | 0 comments [ More ]

Wireless Application Protocol(WAP)






 

Wireless  Application  Protocol  is  a  kind  of  fusion  of   the  mobile  network technologies  and  the  internet  technologies. The  Wireless  Application  Protocol forum (WAP  Forum)  was  founded  in  June  1997  by  Sony  Ericsson, Motorola,   Nokia.

WAP  Forum  and  the  open  Media  Alliance (OMA)  are  to  bring  diverse  internet  content  and  other  data  services  to  digital  cellular  phones, other wireless terminologies. They  provide  better  protocol  suite  world  wide  wireless  communication  across  different  wireless  network  technologies.

WAP  supports  wireless  networks  like  cellular  digital  packet  wireless communication data (CDPD), Global System for Mobile Communication (GSM). To enable easy fast  delivery  of  relevant  information  and  services  to  mobile  users.

 

 

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Sites to learn C and C++

Programming Knowledge has become a essential skill for most of the engineers around the World.The growing technology has led to the development of many programming languages ,though Cis the basic concept for most of the programming languages.

In this post I am going to give five websites to learn programming in c and c++.


  1. cprogramming.com


This sites gives a detailed description about each concept in C and C++ with definitions ,syntax and examples .You can also check your knowledge in these languages by attending the quizzes .



2. learncpp.com

A site dedicated specially to C++.It’s similar to a book with the appendixes you can search any programs needed .The Concepts are well explained with examples even a fresh person can understand easily.

3. Cppgm.blogspot.com

A blog which has large number of C and C++ programs that can be very useful to Engineering Students but not to a new individual. This blog also contains Network programs ,Data Structures.

4. mycplus.com

This site offers variety of source codes in C and C++ such as Gaming and Graphics .If you have any doubts you can post your questions and get a solution for it.

5. tutorialized.com

It contains some good posts to explain the small and geeky things in programming languages .You can create an account for yourself and submit tutorials to the website.

 

Wednesday, 7 December 2011 | posted in , | 0 comments [ More ]

Are Your Passwords Strong Enough



Password is a security that can be used to protect one's account.But now a days these passwords can be easily hacked by ethical hackers easily or even by normal persons.This can happen because of


  • using the same password for more days.

  • Choosing a normal password.

  • using the same password for every websites.


Research on Password hacking have found out that people tend to use Normal password which is easily breakable.Normal Passwords are similar to these kind of words and numbers like



  1. "password"

  2. "qwerty"

  3. "1234"



Some people tend to keep their favourite actress or favourite films as their passwords.

Generally a Password should not contain any of these listed below:


Your Birth Date

Your Marriage Date

Your husband Name

Your Child Name

Follow these steps to protect your account



  1. Change your password regularly atleast once every three months.

  2. You should use a different password for each website or each account that you access.


Sunday, 4 December 2011 | posted in , | 0 comments [ More ]

Google Knol



Many of us don’t know about Google Knol. According to Google’s point of view Knol is something which gives knowledge about a product in a article form which is clear understood idea. The URL http://knol.google.com contains information about various items just similar to wikepedia.

All think that Google knol was started as competition to Wikipedia .The articles in the websites have crossed 1Lakhs(approx).The Articles in the Knol website can be read easily by going to the site http://knol.google.com and searching for what you need as all of us know about the speciality of Google search engine.

Similar to Wikipedia you can also write your own articles or edit the articles that need to be corrected.The Steps to write your Own article in Google Knol are:

1.First go to http://knol.google.com.

2.To Write a Knol,you must have a Google account.

(If you don’t have a google account create a new Account at Google)

3.Login using Google account to write your article.

4.Click on Write a Knol,you will get a basic structure to write articles ,you will get a license.

There are three types of licenses based on Permission settings for others.

 

Thursday, 1 December 2011 | posted in , | 0 comments [ More ]

An Intresting Shell Script

A Shell Script to print the Chess pattern on the terminal.


  • $ vi chessboard

  • for (( i = 1; i <= 9; i++ )) ### Outer for loop ###

  • do

  • for (( j = 1 ; j <= 9; j++ )) ### Inner for loop ###

  • do

  • tot=`expr $i + $j`

  • tmp=`expr $tot % 2`

  • if [ $tmp -eq 0 ]; then

  • echo -e -n "\033[47m "

  • else

  • echo -e -n "\033[40m "

  • fi

  • done

  • echo -e -n "\033[40m" #### set back background colour to black

  • echo "" #### print the new line ###

  • done


 

Run the above script as follows:

$ chmod +x chessboard

$ ./chessboard

 

 

OUTPUT:



 

 

Sunday, 13 November 2011 | posted in , | 0 comments [ More ]

TurnKey Linux Virtual Appliance Library


The Turnkey Linux Virtual Appliance Library is an open source project developing a free virtual appliance library of pre-packaged servers based on Ubuntu that can be deployed on virtual machines, in cloud computing infrastructures or installed in physical computers.


Each virtual appliance is a ready-to-use solution that's optimized for ease of use in server-type usage scenarios.Each appliance is designed to "just work" with little to no configuration required.


The project currently maintains 40 virtual appliances, which are packaged in multiple build formats:




  1. Amazon Machine Image: provisioned on-demand via the Amazon Elastic Compute Cloud.

  2. Virtual appliance: a ready-to-run VMDK disk image with OVF support. Does not require installation.

  3. Installable Live CD: an ISO image which installs on both bare metal (I.e., a non-virtualized physical machine) and virtual machines, including VMware, Xen, VirtualBox, and KVM. This image can also run live in non-persistent demo mode.


Pre-integrated server applications include LAMP, Joomla, Drupal, WordPress, MySQL, MediaWiki, Domain controller, File server, Ruby on Rails, phpBB, and many others.

Saturday, 5 November 2011 | posted in , | 1 comments [ More ]

Top 10 S/W Companies



1. Tata Consultancy Services

The Indian software industry is set to keep up its growth rate despite the slowdown in the economy. The National Association of Software and Services Companies (Nasscom) has forecast a strong outlook for FY08-09 strong with software and services revenue seen growing by 21-24 per cent. The software and services exports are set to hit the $50 billion-mark.


2. Wipro

What started off as a hydrogenated cooking fat company, Wipro is today is a $5 billion revenue generating IT, BPO and R&D services organisation with presence in over 50 countries.


3. Infosys

Infosys Technologies Ltd was started in 1981 by seven people with $250. Today, the company boasts of revenues of over $ 4 billion and 94,379 employees.


4. Mahindra satyam

Established in 1987 by Ramalinga Raju, Satyam has a staff strength of 51,000 employees. In 2008, the company's revenues crossed the $ 2-billion mark.


5. HCL Technologies

HCL is a leading global technology player with annual revenues of $4.9 billion. The HCL Enterprise comprises two companies listed in India, HCL Technologies and HCL Infosystems. Founded in 1976, HCL is one of 'India's original IT garage start ups'.


6. Tech Mahindra

Tech Mahindra was incorporated as a joint venture between Mahindra & Mahindra and BT plc in 1986 under the name of 'Mahindra-British Telecom'.


7. Patni Computer Systems

Patni Computer Systems Ltd one of the leading global providers of information technology services and business solutions. The company has clients across the Americas, Europe and Asia-Pacific locations.


8. i-flex Solutions

iflex started as a division of Citicorp (now Citigroup), wholly owned subsidiary called Citicorp Overseas Software Ltd. (COSL) in 1991. Later, a separate company Citicorp Information Technologies Industries Ltd. (CITIL) was formed and Rajesh Hukku was appointed as its head.


9. MphasiS

MphasiS Limited was formed in June 2000 after the merger of the US-based IT consulting company MphasiS Corporation (founded in 1998) and the Indian IT services company BFL Software Limited (founded in 1993).


10. L&T Infotech

L&T Infotech is a global IT services and solutions provider. It is a subsidiary company of is Larsen & Toubro Ltd. (L&T), an engineering, manufacturing and construction conglomerate, with global operations.


Thursday, 20 October 2011 | posted in , | 1 comments [ More ]

Displacement Sensor

Definition:

Displacement sensor is use to sense and measure the displacement of the object.



Principle:

Light is sent through a transmitting fiber and is made to fall on a moving target.The reflected beam from the target is sensed by a detector with respect to intensity of light reflected from it and hence the displacement of the target is measured.


Construction:

This type of sensor consists of a bundle of transmitting fibers coupled to a laser source and a bundle of receving fibers coupled to a detector as shown below.


Working:


To measure the displacement of the target,first light from the source is transmitted through the transmitting fiber and it is made to fall on the moving target.


The reflected beam from the target is made to pass through the receiving fiber and this light is detected by the detector.The intensity of the light received back depends on the displacement of the target.


If received intensity increases,it indicates thatthe target is moving towards the sensor.But if the intensity of light received inceases,it indicates that the target is moving away from the sensor.


Thus the displacement of the target can be measured from the intensity of the light received.

Thursday, 22 September 2011 | posted in , | 0 comments [ More ]

Temperature Sensor



Temperature sensor is a sensor used to sense and measure the temperature of an object.

Principle:

The operation of the temperature sensor is based on the light absorption characteristics of silicon as a function of temperature.The absorption of light by the silicon layers varies with temperature and the variation modulates the intensity of the light received at the detector.


Construction:

The fiber is coated at one end with a thin silicon layer.This silicon layer is coated with a reflective coating at the back.The light source is connected into the fibre from one of its ends.The detector is used to receive the reflected signal from silicon layer.A simple thermometer can be built using LED as a light source and a photodetector to measures the intensity of light.


Working:

When the light is passed through the fiber from the source and the light after reflecting from the silicon layer returns to a detector.During this process,light is absorbed by the silicon layer.The absorption of light by silicon layer varies with temperature and this variation modulates the intensity of the light received at the detector. A Photodetector is used to measure the intensity of light and temperature is sensed.Temperature int the range from 80 degree to 700 degree celsius is measured using this technique.

Tuesday, 20 September 2011 | posted in , | 0 comments [ More ]

Fibre-optic Sensors

FIBRE-OPTIC SENSORS

                          One of the most exciting applications of optical fibres is fibre-optic sensors.A Sensor is transducer which converts one form of energy(physical variable) into another.The Sensors find wide applications in sensing and measuring acoustic fields,magnetic fields,current, rotation,acceleration, strain,presure,temperature and so on.
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TYPES OF SENSORS
There are two types of Sensors.They are


1.Intrinsic Sensors (or) Active sensors
2.Extrinsic Sensor (or)Passive sensors

1.Intrinsic Sensors(or) Active Sensors:

In intrinsic sensors(or)active sensors,the physical parameter to be sensed directly acts on the fibre itself to produce the changes in the transmission characteristics.
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Examples
I)Pressure sensors(Phase and polarization sensor)
II)Liquid level sensor

 2.Extrinsic sensors(or)Passive sensors:
In extrinsic sensors(or) passive sensors,separate sensing element is used and the fibre acts as a guiding media to the sensors.


Examples:
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I)Displacment sensor and
II)Laser doppler velocimeter sensor

Monday, 19 September 2011 | posted in , | 2 comments [ More ]

Nokia Morph

Nokia Morph - A concept phone with the use of nanotechnology


Nokia Research Centre (NRC) and the University of Cambridge have developed a nanotechnology concept device, called the Morph, which was introduced today. The new device will be on display in The Museum of Modern Arts (MoMA) in New York, from February 24 to May 12, 2008.


The Morph is intended to demonstrate the flexibility of future mobile devices, in regards to their shape and form allowing the users to transform them according to their preference. It also suggests that transparent electronics and self-cleaning surfaces might be what the future holds.



Parts (elements) of Morph could be commercially available for use in other mobile devices within 7 years. Due to the initial high price for manufacturing those, they will be suitable for high-end devices.


Saturday, 17 September 2011 | posted in , | 0 comments [ More ]