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Pankaj Rattan's articles
The main function of the network layer is routing packets from the source machine to the destination machine. In most subnets, packets will require multiple hops to make the journey. The only notable exception is for broadcast networks, but even here routing is an issue if the source and destination are not on the same network. The algorithms that choose the routes and the data structures that they use are a major area of network layer design.
Posted: 2012-02-01
Category: Computer
Informally, an algorithm is any well-defined computational procedure that takes some value, or set of values, as input and produces some value, or set of values, as output. An algorithm is thus a sequence of computational steps that transform the input into the output.
Posted: 2011-11-05
Category: Computer
Brian Kernighan and Dennis Ritchie prepared The C Programming Language in between 1969 and 1973 at AT&T Labs. It is the combination of “B” Language and BCPL (Basic Combined Programming Language) Language. C language depends on ANSI (American National Standard Institute). ANSI is a standard that is made for every compilers working in same manne
Posted: 2011-08-21
Category: Computer
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.
Posted: 2011-07-30
Category: Computer
File is collection of records.We can perform different type of operations on the file.Lets discuss the various operation that we can performed on a file. Opening a file Before we can write to a file, we must open it. What this really means is that we must tell the system that we want to write to a file and what the file name is. We do this with the fopen function illustrated in the first line of the program.
Posted: 2011-07-20
Category: Computer
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.
Posted: 2011-07-01
Category: Computer
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.
Posted: 2011-06-26
Category: Databases
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 functions 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.
Posted: 2011-06-22
Category: Software
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.
Posted: 2011-05-21
Category: Databases
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:
Posted: 2011-04-29
Category: Databases
