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2009
01.27

A Web browser is actually a software application which runs on your Internet-connected computer. It allows you to view Web pages, as well as utilize other content and technologies such as video, graphics files, and digital certificates, to name a few. Some browsers will translate only text while others do support graphics and animation. Web browsers are not all created equal, and Web pages also will not be displayed the same in different browsers.

Web browsers, often referred to just as browsers, are software applications used to locate and display Web pages on the World Wide Web. While this is the most popular usage, browsers can also be used to access and view content  on a private or local network as well.  Most, but not all browsers are  graphical browsers, which means that they can display graphics as well as text. In addition, most modern browsers can present multimedia information, including sound and video, though they require plug-ins for some formats.

How Web Browsers Work
Browsers are able to display Web pages largely in part to an underlying Web protocol called Hyper Text Transfer Protocol (HTTP). HTTP defines how messages are formatted and transmitted, and what actions Web servers and browsers should take in response to various commands. It is what allows Web clients and Web servers to communicate with each other. When you enter a Web address (URL) in your browser, this actually sends an HTTP command to the Web server directing it to fetch and transmit the requested Web page and display the information in your browser. All Web servers serving Web sites and pages support the HTTP protocol.

Example: The URL to reach the definition of browser like :  http://www.tejaspmehta.com/test.html

Once you enter the URL “http://www.tejaspmehta.com/test.html” into your address line, the browser breaks that Web address down into three distinct parts.

1. The Protocol: “http”
2. The server name: “www.tejaspmehta.com”
3. The file name, which follows the server name: “test.html”
In order for your browser to actually connect to the Web server to retrieve the information you request, it communicates with a name server to translate the server name into an IP address. Your Web browser is then able to connect to the Web server at the resolved IP address on port 80. Once your browser has connected to the Web server using HTTP, the browser then reads the HyperText Markup Language (HTML), the authoring language used to create documents on the World Wide Web, and the data is then displayed in your Web browser.

Most Popular Web Browsers
Microsoft Internet Explorer
Mozilla Firefox
Opera

2009
01.13

A basic push up does not require any equipment other than your own body weight and your arms. It can be done anywhere there is a firm surface. And it works the chest, the shoulders, abs, and the triceps. So, it is an excellent exercise for general upper body strength.

If you have any condition that would impair or limit your ability to engage in physical activity, please consult a physician before attempting this activity. This information is not intended as a substitute for professional medical advice or treatment.

Here’s the proper way to do push-ups anywhere.

Step1
Lie chest-down with your hands at shoulder level, palms flat on the floor and slightly more than shoulder-width apart, your feet together and parallel to each other.

Step2
Look forward rather than down at the floor. The first contact you make with the floor with any part of the face should be your chin, not your nose.

Step3
Keep your legs straight and your toes tucked under your feet.

Step4
Straighten your arms as you push your body up off the floor. Keep your palms fixed at the same position and keep your body straight. Try not to bend or arch your upper or lower back as you push up.

Step5
Exhale as your arms straighten out.

Step6
Pause for a moment.

Step7
Lower your body slowly towards the floor. Bend your arms and keep your palms in fixed position. Keep body straight and feet together.

Step8
Lower body until chest touches the floor. Try not to bend your back. Keep your knees off the floor, and inhale as you bend your arms.

Step9
Pause for a moment. Begin straightening your arms for a second push-up. Exhale as you raise your body.

Tips & Warnings

  • For an easier exercise, lower your knees so that they rest on the floor. Keeping your back straight and your toes tucked under your feet, proceed with the exercise normally. This decreases the amount of pressure placed on your arms.
  • Another variation of a push-up is the incline push-up. Leaning on a vertical surface, such as a wall, place your hands shoulder-width apart and slowly proceed with the normal exercise.
  • As with any strength training exercise, if you feel intense and/or sudden unexpected pain in your chest and/or shoulders, stop immediately! If the pain is in your chest and/or shoulders, you have either done more push-ups than you can handle or you aren’t ready for the exercise you are undertaking. If it is the latter, start with lighter exercises that target the chest before attempting the push-up. If the pain is somewhere else, you are doing something wrong. If the pain persists, consult a physician.

Ref. Document : eHow

2009
01.01

Wishing all reader Happy New Year.