TECHNOLOGY

What Is A Virtual Function? A virtual function is a member function within the base class that we redefine in a derived class. It is declared using the virtual keyword. When a class containing virtual function is inherited, the derived class redefines the virtual function to suit its own needs.  Virtual function ensure that the … Read more

Engineering fits are generally used as part of geometric dimensioning and tolerancing when a part or assembly is designed. In engineering terms, the ‘’fit’’ is the clearance between two mating parts and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other … Read more

Android Lollipop Android Lollipop (codenamed Android L during development) is the fifth major version of the Android mobile operating system developed by google and the 12th version of Android, spanning versions between 5.0 and 5.1.1. Android lollipop was launched on June 25, 2014 at the Google I/O 2014 conference and it became available through official … Read more

What Is A Primary Key? A primary key, also referred to as a primary keyword, is a key in relational database that is unique for each record. It is a unique identifier such as a driver license number, Social security number, telephone number (including area code), or vehicle identification number. A relational database must always … Read more

What Is Raster Scan? In raster scan system, the electron beam is swept across the screen, one row at a time from top to bottom. As the electron beam moves across each row, the beam intensity is turned on and off to create a pattern of illuminated spots. What You Need To Know About Random … Read more

What Is Server-side Scripting? Server-side scripting is a method of designing websites so that the process or user request is run on the originating server. Server-side scripts provide an interface to the user and are used to limit access to proprietary data and help keep control of the script source code.  It is based on … Read more

An operating system (OS) is an interphase between a computer user and computer hardware. An operating system performs all the basic tasks like file management, memory management, process management, handling input and output and controlling peripheral devices such as disk drives and printers.  Examples of operating systems include: Linux Windows macOS (formerly OS X) Disk … Read more

What Is Indexing? Indexing is a way of optimizing the performance of a database by minimizing the number of disk accesses required when a query is processed. It is a data structure technique which is used to quickly locate and access the data in a database.  There are two types of indexes in SQL Server: … Read more

Top-down and bottom-up approach are both strategies of information processing and knowledge ordering, used in a variety of fields including software, humanistic and scientific theories and management and organization. In practice, they can be seen as a style of thinking, teaching or leadership. In this article get to understand the underlying difference between top-down and … Read more

What Is IPv4? IPv4 (Internet Protocol Version 4) is the fourth revision of the Internet Protocol (IP) used to identify devices on a network through an addressing system. The internet protocol is designed for use in interconnected systems of packet-switched computer communication networks. IPv4 is the most widely deployed internet protocol to connect devices to … Read more