Pankaj

Abstractly, a file is a collection of bytes stored on a secondary storage device, which is generally a disk of some kind. The collection of bytes may be interpreted, for example, as characters, words, lines, paragraphs and pages from a textual document; fields and records belonging to a database; or pixels from a graphical image. The meaning attached to a particular file is determined entirely by the data structures and operations used by a program to process the file.

File Handling In this section, we will discuss about files which are very important for large-scale data processing. Data are stored in data files and programs are stored in program files. A file is simply a machine decipherable storage media where programs and data are stored for machine usage. In C++ we say data flows as streams into and out of programs. There are different kinds of streams of data flow for input and output.

Introduction:- Visual Basic (VB) is the third-generation event-driven programming language and integrated development environment (IDE) which is made by Microsoft for its COM programming model. It is enhanced version of BASIC programming language. Visual Basic (VB) is an event-driven programming language because during every operation an event is done and executed sequentially in order to control the user interface.

A database trigger is a stored procedure that is fired when an INSERT,UPDATE, or DELETE statement is issued against the associated table in the data base. The name trigger is appropriate, as these are triggered (fired) when ever the above mentioned commands are executed. A trigger defines an action database related event occurs.

OOP stand for the object oriented programming.OOP treats data as a critical element in the program development and does not allow the program to flow freely around the system. It ties data more closely to the fictions that operates on it and protect it from the unintentional modification by other functions.This type of programming languages are totally different from the procedural language. OOP offers several benefits to both program designer and the user using that program.

Introduction: Telnet is used to connect to remote machines through emulation. This means that it can connect to a server, any server instantly because of it's ability to emulate (copy) remote computers. Lets Start: In Windows, Telnet can be found by going to Start -> Run and then typing telnet. The application should then pop up. If you don't have Windows, there are many Telnet alternatives for mac, linux etc. Since I don't know any, search the internet for Telnet for Linux or Telnet for M

A DBMS perform several important functions that guarantee integrity and consistancy of the data in the database. Most of these functions are transparent to the end users. There are the following important functions and services provided by the DBMS. (1).Data Storage Management: It provides a mechanism for management of the permanent storage of data. The internal schema defines how the data should be stored by the storage management mechanism and the storage manager interfaces with the operating

V.B. stands for Visual Basic. Visual Basic provides various tools for creating and accessing data base.the two measure tools are :- 1. The data control 2 .The data access object The data control gives you access to database without any programming. You can set a few properties of the control and use regular controls such as text boxes to display the values of the fields it the database. This is the no code approach to data base programming. But this approach can't take u far. Sooner or late

Database is the collection of interrelated data, means it is composed of a collection of file that are linked In such a way that information from one of the files may be combined with information from other files so that a user may receive exact information needed. Now the various advantages of the database:

If you have some private data on your desktop folder and you want to make the name of folder invisible to other person, then you can use this new PC trick. Windows 7 and vista allows you to create an invisible folder without any logo and name.There is no need to use any external software for this new trick. This new PC trick is so simple and easy to perform. During this tutorial we first protect our data by placing it in an invisible folder and then hiding it so that no one else can open it.