Category Archives: Computer Concept

NoSQL – Not only SQL – Introduction

A NoSql database Stands for “NOT Only SQL”. A NoSQL database provides a mechanism for storage and retrieval of data that uses looser consistency models rather than traditional relational databases. Motivations for this approach include simplicity of design, horizontal scaling and finer control over availability. NoSQL databases are often highly optimized key–value stores intended for simple retrieval and appending operations, with the … Continue reading NoSQL – Not only SQL – Introduction

Common Components of Computer Network

Common Components of Computer Network: All Computer Networks include some combination of the following – end Station, application, and a Network. Some of this components are used to make different topology in computer network. Common Components of Computer Network 1. Servers: Servers are computers that hold shared files, programs, and the network operating system. Servers provide … Continue reading Common Components of Computer Network

what is compiler and how it works – Phases of Compiler

What is compiler and How it works? Its compiler that makes our high level language understandable to computer, by translating it into machine code or low level language. This means compiler is a Translator. In simple words we can define compiler as a system program that translates code written in high-level language like c, c++ into an … Continue reading what is compiler and how it works – Phases of Compiler

Topologies used in computer network with advantage and disadvantage

Topology is refers to the way a network is laid out m either physically or logically. It uses common components of computer network to make a topology. Topologies used in computer network with advantage and disadvantage The Topologies are as follows : 1.Mesh Topology: Every device have a dedicated point to point link to every … Continue reading Topologies used in computer network with advantage and disadvantage

SI prefixes – Units in power of 10

SI prefixes – Units in power of 10. International System of units, is the modern form of unit metric system and is most common system for measurement in world. While studying engineering or any subject in which we perform calculation in power of 10 then, we come across the terms like “micro”, “gega”, “milli” and symbol like “µ, n” etc. SI … Continue reading SI prefixes – Units in power of 10

What are exceptions and why to handle exceptions

What are exceptions and why to handle exceptions ? Exception are the conditions that occurs unexpectedly, i.e it makes a system to an undefined state. In other words it can be defined as a abnormal condition. What are exceptions and why to handle exceptions What are exception in programming language : Exception is defined as … Continue reading What are exceptions and why to handle exceptions

Example of exception handling with try catch in java

Example of exception handling with try catch in java. Exceptions are the undefined conditions that occur and are to be handled. Exceptions are called as run time exception. You can read the following article to know more about exception : What are exception and why exceptions are to handle and also difference between throw and throws … Continue reading Example of exception handling with try catch in java

Difference between throw and throws keyword with example in Java

Difference between throw and throws keyword with example in Java. Throw and Throws are the two keyword used in java for exception handling. To know this keyword, we should know about exception and why to handle exception, and how we can handle exception in java. Here is the definition of throw and throws : Difference between … Continue reading Difference between throw and throws keyword with example in Java

AJAX – Brief introduction – Why, Where and Example

AJAX – Brief introduction – Why, Where and Example. To be very confine to cover Why and Where AJAX technology is used with example, will cover following 5 topics just to get an overview of an AJAX technology. This post only deals with why and where this technology is used. Brief introduction to AJAX AJAX is … Continue reading AJAX – Brief introduction – Why, Where and Example