Information Technology World

Keyboard Shorcuts (Microsoft Windows) 1. CTRL+C (Copy) 2. CTRL+X (Cut) 3. CTRL+V (Paste) 4. CTRL+Z (Undo) 5. DELETE (Delete) 6. SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin) 7. CTRL while dragging an item (Copy the selected item) 8. CTRL+SHIFT while dragging an item (Create a shortcut to the selected item) 9. F2 key (Rename the selected item) 10. CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word) 11. CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word) 12. CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph) 13. CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph) 14. CTRL+SHIFT with any of the arrow keys (Highlight a block of text) SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document) 15. CTRL+A (Select all) 16....

Inventors of programming languages and various technologies C was developed by Dennis Ritchie Dennis Ritchie C++ was developed by Bjarne Stroustrup Bjarne Stroustrup Java is developed by James Gosling . James Gosling . Net is developed by Microsoft . Microsoft Php (hypertext preprocessor) developed by Rasmus Lerdorf . Rasmus Lerdorf Java Script designed by Brenden Eich . Brenden Eich J query is a platform whose original author : John Resig John Resig Pascal is developed by Niklaus Wirth. Niklaus Wirth. Python was developed by Guido van Rossum . Guido van Rossum Pearl is developed by Larry wall. Larry wall See This Too : Do Not Give Up Who invented Electric bulb? Basic Knowledge on Cloud Computing

Generally data is sent over network using IP addresses , in IP spoofing the hacker changes the IP address of destination to itself and behaves as if it is original destination also replies to the source to make it unknown about changes. Also he can just become source for original destination IP and become a mediator to pass data between them and use information he wants. It is generally used for Denial-of-service attacks .In which the goal is to overwhelm the computer with traffic to stop its services . The attacker does not care about receiving responses to the attack packets. Packets with spoofed addresses are thus suitable for such attacks. They have additional advantages for this purpose they are more difficult to filter since each spoofed packet appears to come from a different address, and they hide the true source of the attack. Any service that uses IP address for authentication can be vulnerable to this attack. You can use filtering techniques to defend against ...

by  Vikram kumar Advantages of Mobile Applications for your Business Mobile applications are in fast pace development and it is now pioneered by popular companies like Apple, Google and Blackberry. Today, it is possible to build a brand awareness that can attract more clients using less effort and minimum time in a very cost effective way. The use of mobile application is applicable for both small and medium sized businesses in order to keep their clients well informed about their new promotions, discounts, upcoming events and a lot more. It can aid businesses to ensure customer retention and loyalty to your company. You can enter broader customer base through this new technology. This is a better option compared to sending messages with the use of emails that require more effort and time consuming without knowing if the intended user has read the message or not. It is through mobile app development that you can acquire instant commendation or acknowledgement from you...

by  Vikram kumar Cloud computing is basically an expanded internet feature that can facilitate users who are in need of storage, servers and data center but you will pay every time you will use the service from a reputable provider. If you are interested with this new technology, then you need to become aware that it has three important main characteristic such as availability on demand by hour or minute. It offers users as much or as little service base on their needs and requirements & it’s managed by a third party provider. You are required to use a pc with reliable internet connection so you can access cloud technology anywhere you are in the world anytime of the day. There are diverse kinds of cloud structure that people needs to know. This can be unrestricted, reserved or mixture of both known as amalgam cloud. The good thing about public cloud is the fact that it is available for all users in the internet while the private cloud is just exclusive for a sole...

It is defined as a logical data server environment. All databases are created within instances on data servers. When multiple instances are created  on same server it provides a unique database server environment using which you can differentiate your tasks going on, such as maintain a testing environment and a production environment on same machine. You may have different administrative groups working with different instances. Information related to instances are stored in instance directory. Location of instance directory cant be changed once created. It contains information like: · Database manager configuration file · System database directory · Node directory · Node configuration files · Other files containing debugging information DB2 Storage Model To create an instance in windows you have to write following command:             db2icrt To start an instance:             DB2START...

Some variables are DB2INSTANCE, DB2PATH etc. We will see how to manipulate them using some commands.            1.      Set parameter for current instance: db2set parameter=value      2.      Set parameter for specific instance: db2set parameter=value  -I      3.      Set parameter at global level: db2set parameter=value  –g      4.      To view list of all available variables that can be set: db2set –lr      5.      To delete a registry variable setting: db2set parameter=      6.      To set variable to null:                        db2set parameter -null

It is a feature of DB2 using which you can change various environment variables which can have effect on server even outside the instance and database configuration settings. It is used to alter operations of your DB2 data server. Main advantage of it is that after doing any changes in environment variables you need not to reboot your server for changes to take effect, which was required earlier. Some parameters which can be changed using it are: DB2_SKIPINSERTED, DB2_MDC_ROLLOUT, DB2COMM. It is divided into 4 regions: 1.      DB2 Instance Level Profile Registry: Majority of environment variables are placed here. Variables related to particular instance are kept in this registry. Values defined here override global level settings.       2.      DB2 Global Level Profile Registry: If a variable is not set for a particular instance, this registry will be used.      3.    ...

Importance of C: C is a general purpose, structured programming language. C is  robust language  whose rich set of built in function and operators can be used to write any complex program. C has the ability to write very concise source programs. Mainly because it has a large number of operators a small set of instructions and extensive library functions. It’s well suited for writing both system software and business packages. Program written in C are  efficient and fast . This is due to its variety of data types and powerful operators. C is highly  portable  because C program written for one computer can be run on another with little or no modification. C language is  well suited for structured programming . This modular structure makes program debugging, testing and maintenance easier. Another importance feature of c is its ability  to extend itself . We can continuously add our own function to the c library. C compiler is commonly availa...

IBM® DB2® for Linux, UNIX and Windows introduces new features to help your organization leverage analytics for better decision making, improve performance, ease database administration, streamline development, and lower data management costs. 1.      Autonomics: Automate tasks such as memory allocation, storage management and business policy maintenance, enabling IT staff to focus on new and strategic projects. 2.        BLU Acceleration: Simplify analytics and reporting with breakthrough speed. Take advantage of dynamic in-memory technology and other innovations for faster insights from more data to make better decisions. 3.      Data Warehouse Analytics: Provide high performing predictive and pattern analysis without moving your data into proprietary data mining platforms. 4.        High Availability: Help ensure your database remains operational both d...