Saturday, April 30, 2011

What do you mean by DSS?


A decision support system is highly flexible and interactive IT system that is designed to support decision making when the problem is not structured. Decision making is one of the most significant and very important activities in business. In business, decision making has four distinct phases like intelligence, design, choice, and implementation. Decision support system provides users with flexible sets of tools and capabilities for analyzing important blocks of data. Read More

Friday, April 29, 2011

What do you mean by PHP?


PHP is interpreted rather than compiled like Java or C, C++ and it’s an embedded scripting language, meaning that it can exist within HTML code. It can be used on Linux, Windows, Macintosh, etc, making PHP very portable. It is such a kind of language which is originally stood for personal home page, but as its functionality expanded it became PHP hypertext. 

What do you mean by DHTML?


Dynamic HTML or DHTML is a collection of modern information technologies which is used together for creating interactive and animated web sites by using a combination of a static markup language, a client side scripting language, a presentation definition language( cascading style sheets, css), and the most common one is document object model DOM. Read More

Wednesday, April 27, 2011

What are the Open Source Tools?


Open source tools are a lot. Every day in ICT market we find a new open source tool. Some of the open source tools are as follows:

  1. PHP
  2. JAVA Script
  3. Apache Tomcat
  4. TCL
  5. XML
  6. ASP
  7. Python
  8. Post GRE SQL
  9. My SQL
  10. Linux
  11. HTML
  12. DHTML. ReadMore


Disadvantages of the open Source Software


The typical open source project contains contributions from many people. It is almost impossible to audit the entire code base for violations of previous license conditions. This creates many opportunities for contributors to introduce infringing code. Thus this risk in the development process is largely borne by licensees. Contributors do not vouch for the integrity of the code they contribute to the project, in fact, the opposite is true-the standard open-source license is designed to be very protective of the contributor. Read More 

Tuesday, April 26, 2011

Merits of Open Source Software


The merits of open source software are a lot for developing the software technology open source takes one of the most important rules. Open Source developers have the opportunity to build on each others ideas. The availability of OSS source code allows a worldwide community of open source developers to participate in peer distribution, peer- review and production. Read More

What is Open Source Software?

Generally open source refers to a program in which the source code is available to the general public for use and modification from its original design free of charge. Open source code is typically created as a collaborative effort in which programmers improve upon the code and share the changes within the community. Open source sprouted in the technological community as a response to proprietary software owned by corporations. Read More 

Monday, April 25, 2011

Advantages of Optical Fiber Communication


The advantage of optical fiber communications in digital world is a lot. Now a day’s optical fiber became more popular than any other communication medium. Communication using an optical carrier waves guided along a glass fiber has a number of extremely attractive features, several of which were apparent when the technique was originally conceived. Furthermore, the advances in the technology to date have surpassed even the most optimistic predictions, creating additional advantages. Read More

Sunday, April 24, 2011

What do you mean by Antenna?


An antenna can be defined as an electrical conductor or system of conductors used either for radiating electromagnetic energy or for collecting electromagnetic energy. For transmission of a signal, radio frequency electrical energy from the transmitter is converted into electromagnetic energy by the antenna and radiated into the surrounding environment. For reception of a signal, electromagnetic energy impinging on the antenna is converted into radio frequency electrical energy and fed into the receiver. Read More

Friday, April 22, 2011

Virtual Carrier Sensing and Network Allocation vector


Carrier sensing is used to determine if the medium is available. In addition to the physical carrier sensing, 802.11 employs also virtual carrier sensing functions. If either one of them indicates that the medium is busy, the station defers the transmission. Virtual carrier sensing is provided by the network allocation vector, Most 802.11 frames carry a duration field, which can be used to reserve the medium for a fixed time period. Stations set the NAV to the time for which they expect to use the medium including any frames necessary to complete the current operation. Other stations that receive the frame set their NAV timer which is a timer that indicates the amount of time the medium will be reserved and count down from the NAV to 0. Read More

Thursday, April 21, 2011

The Optical Fiber and Fiber cables


The manufacture and construction of the basic fiber are somewhat complicated. In simple terms, a highly refined quartz tube that will eventually be filled with a combination of gases is selected to start the process. This tube, about 4 ft long and about 1 inc in diameter, is placed in a lathe and the gases are injected into the hollow tube. The tube is rotated over a flame and subjected to temperatures of about 1600 degree F. These fiber cables are made with many materials. Read More

Wednesday, April 20, 2011

Why we used Optical Fiber?


We used optical fiber technology because of rapidly increasing demands for telephone communication throughout the world, multi-conductor copper cables have become not only very expensive but also an inefficient way to meet these information requirements. The frequency limitations inherent in the copper conductor system make a conducting medium for high speed communications necessary. Read More

Tuesday, April 19, 2011

Characteristics of Switching System


When you discuss about the characteristics of switching system it’s different from each other. Circuit switching has one kind of rule and on the other hand packet switching plays another rule. Like circuit switching need 64 Kbps channel for voice transmission on the other side packet switching don’t have any limit. Read More     

Switching in a Tele-communications system


Switching is the best generic method of establishment a path for point to point communication in a network. It is used in telecommunication system. There are two types of switching system we have these are as follows: a. Circuit Switching b. Packet switching. ReadMore


Sunday, April 17, 2011

Free PC error Software Download


Someone can be thinking about his personal computer software problems. A computer user has to face some software problems when adding or removing some programs in his computer. Attempting to clean up the registry manually can lead to worse problems. If someone fall into this sort of problems at first they go to the software store and try to solve this. But today you can find all kinds of software which you need for your PC in the internet and can download it free. But when download the software must read up on several different titles and understand their features because there are so many titles out there. Read More    

Saturday, April 16, 2011

Fading in the mobile environment


Fading is very important in the communication system. There are different kinds of fading technique for avoiding these kinds of communication problems. The term fading refers to the time variation of received signal power caused by changes in the transmission medium or paths. Read More

Saturday, April 9, 2011

How can you running your Laptop fast?


If your Laptop is not running fast and it has a problem when it boot and when you are working in too many program. There is a lot of factors for the system making slow. It is not an easy task to keep a computer running fast. For this you have to know lots of things about technical knowledge. When you running too many programs in your computer at that time 90% of your RAM is being used and we knew that your RAM is not unlimited. In that case the system became slow, so for avoiding these problems you can increase your RAM or uninstalled your some program. Another important thing is you had to install a better anti virus, because of using the internet some Mala-wares, Viruses and Spy-ware are attack in your Laptop and making some damage. Read More. 

Tuesday, April 5, 2011

Upgrade version Laptop Technology


Now a days Laptop became the most workable and more powerful computer, Most of the people used this latest computer because they can easily carry it anywhere they want and also they can used it as like as their personal computer. Laptop and notebook computer technology is advancing a high speed. There is a lot of upcoming laptop and notebook computer technologies are ready for changing their structure. Some of them are like 64 Bit Laptops, Dual Core Notebooks etc. 


Sunday, April 3, 2011

The museum security system.

The museum security system is very important for the museum as well as for the nations for collecting their historical things. For the security of a museum at first people take some anti- air defense. It is very necessary for a nation to protect their historical, scientific, cultural and artistic resource. In recent time modern communications system used for the museum security for upgrading the system. This types of technology like   active infrared, passive infrared, microwave, ultrasound, voice and other anti-theft Detector to form a variety of detection means of anti-theft alarm system, burglar alarm to a new level of technology, fire alarm, television monitor, the Security and Protection System etc. Read more