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Ever get stressed out because you know that there would be subnetting question(s) in the next exam you are taking and that these questions easily take up 10 to 20 minutes of your precious exam time? What if there is more than one question? The process of converting the subnet to binary and decimal can drive the unfamiliar insane, not to mention the waste of precious time and brain power which can be utilized for other areas of exam preparation. Let's take a look at a shortcut method that will cut down the time needed to answer these questions without the need for a calculator. Subnet Basics: This article assumes that you know how to perform subnetting in the traditional method but it is important to stress that there are only 3 classes of usable IP addresses which are: Class Range Subnet mask Host bit Subnet ...

The applications and games that you find on the best iPod Touch apps list are not just restricted to the Apple iPod Touch. They can be used on the Apple iPhone as well, and most of them can even be used on the Apple iPad. The quantity and the quality of these apps is one of the most attractive points of owning a device developed by Apple Inc, and you can rest assured that you will get productive and useful apps in every category that you look. There are more than 300,000 apps available in the Apple App Store, and they optimize the use and the features of your iPod Touch. The new Apple iPod Touch 4G has raised the bar even higher for portable MP3 players, and now you can access the Internet with it, make video calls with it, watch videos on it and the various apps are simply tools that are meant to make all these tasks more enjoyable and productive at the same time. Apple iPod Touch Apps List With that information in mind, here are some of the top iPod Touch apps that...

Is your computer infected by virus named -SAM - ? Are you not able to surf your favorite websites like orkut or proxy sites ? Irritated due to activities of that virus? Here is the solution !! Download -SAM- Cleaner One thing I want make clear is that, This is not a “Computer virus”. (You may check the definition of that word on the net) Then what exactly is it ? It is actually a computer program designed to block the website not expected in colleges, companies or any other official places. This -SAM- program will only block pornographic sites, harmful sites and sites like orkut, my space n so on. What can be assured is it will not harm your computer in any way, also its not having any kind of destructive purpose. Instead if -SAM- is running, rest of the viruses cant exist in the same computer, yes this is one of the best features of -SAM- program. -SAM- was actually a module of our project “System Maintenance Suite” - one of the top 8 softwares awarded in India in IIT Tech...

Following is the abstract of my B.E. final year project : 1.1. Preface We all are living in the computer era where almost everything is automated and computer controlled. This SMART Server also aims to have complete network management. The system administrator or analyst of the company or organization would be pleased if he is given something that will automatically keep track of all inventories present in the campus, something that manages the clients and the web traffic, something that helps him to solve the problems remotely. Now the wait is over. Yes, that abstract “something” is realized as SMART Server. Its acronym for Self Monitoring, Analysis and Reporting Technology based Server.  In today’s world, all the things mentioned above are of extreme importance. The organization can see the quick snapshot of organization’s IT structure and assure that everything is alright. If not, then it can take the appropriate actions. The real-time reports can surely he...

This is the project that I show cased at IIT Mumbai while pursuing my engineering from SSGMCE and was among the top 8 projects throughout India. Here is an abstract : 1. Idea of project: Every computer user thinks that his/her computer should work smoothly without any problem, may be caused by the viruses, faulty application softwares, registry errors, etc. One has to use various applications to defeat each problem respectively. For instance, registry cleaner for cleaning registry only. Still it’s not guaranteed that the error will be resolved. For example, an antivirus may remove the viruses but not cure the damages created by the viruses. The idea behind creating this software is to aid computer user to enjoy problem free computer. As maintenance is a part of any system, an all in one reliable solution may prove better for dealing with the various situations. 2. How does this Software work?  As stated earlier, problems and errors in the computers are mainly du...

Need to monitor Linux server performance? Try these built-in command and a few add-on tools. Most Linux distributions are equipped with tons of monitoring. These tools provide metrics which can be used to get information about system activities. You can use these tools to find the possible causes of a performance problem. The commands discussed below are some of the most basic commands when it comes to system analysis and debugging server issues such as: Finding out bottlenecks. Disk (storage) bottlenecks. CPU and memory bottlenecks. Network bottlenecks. #1: top - Process Activity Command The top program provides a dynamic real-time view of a running system i.e. actual process activity. By default, it displays the most CPU-intensive tasks running on the server and updates the list every five seconds. Fig.01: Linux top command Commonly Used Hot Keys The top command provides several useful hot keys: Hot Key Usage t Displays summary i...

This article describes how to do concurrent programming with Java. It covers the concepts of parallel programming, immutability, threads, the executor framework (thread pools), futures, callables and the fork-join framework. Table of Contents 1. Concurrency 1.1. What is concurrency? 1.2. Process vs. threads 2. Improvements and issues with concurrency 2.1. Limits of concurrency gains 2.2. Concurrency issues 3. Concurrency in Java 3.1. Processes and Threads 3.2. Locks and thread synchronization 3.3. Volatile 4. The Java memory model 4.1. Overview 4.2. Atomic operation 4.3. Memory updates in synchronized code 5. Immutability and Defensive Copies 5.1. Immutability 5.2. Defensive Copies 6. Threads in Java 7. Threads pools with the Executor Framework 8. Futures and Callables 9. Nonblocking algorithms 10. Fork-Join in Java 7 11. Deadlock 1. Concurrency 1.1. What is concurrency? Concurrency is the abi...