ITU (International Telecommunication Union) is a special agency of United Nations that is responsible for governing matters related to Information and Communication Technologies (ICT). It was established in 1865 to support and help governing Telegraphic Networks globally. ITU has member states across the globe. Each country manages the radio spectrum within their country. The management…
Digital Electronics
Digital Electronics is the foundation of Computing Systems and Digital Communications which brought in the concept of Digitalization using electronic components like resistors, capacitor, logic gates, amplifiers to convert analog signals into discrete digital signals. Data was processed, stored and transmitted digitally.
Wireless
Wireless also known as Wireless Communication is the term referred when the communication between systems happens without any physical wires. The communication of data or voice happens in free space using Radio waves. Radio waves are electromagnetic waves with low frequency and high wavelength in the electromagnetic spectrum. Wireless is used in Wi-Fi Network, Satellite…
SQL Injection (SQLi) Attack
SQL Injection (SQli) is an attack technique where the attacker exploits the vulnerability in Web Application of not validating inputs and injects malicious SQL statements into the Relative Databases (RDMS). Web Application is a 3-Tier Architecture. A user accesses the web server and the data from the web server is provided to the application server….
Server-Side Scripting
Server-Side Scripting are the programming languages that execute on the web server when processing the user’s request. They generate the dynamic content as needed by the user’s request. Server-Side Scripting languages are the fundamental components of a Web Application. Examples are PHP, Python, Ruby, JavaScript, Java. The following are various activities done by the Server-Side…
Client-Side Scripting
Client-Side scripting refers to the scripts that executes within the user’s web browser rather than on a web server. These scripts are downloaded from the Web Server on the local machine and gives the user the enhanced experience of running dynamic content in their local machine. Examples of client-scripting languages are JavaScript, VBScript, jQuery.
Server Side Technologies
Server Side Technolgies are the technologies, platforms and software that enable Web Content for the users requesting them through their client machines. The core components of Server Side Technologies are as follows: Web Server – The System that host the Web Server which recieves the web request, processes them and gives response to the user….
Dataset
Dataset is a collection of data in an organized manner in a specific format of tables, array, CSV, JSON, XML. Dataset is used for data analysis, artificial intelligence, machine learning Schema defines the structure in which a dataset holds the data. Each dataset model has their own schema. Types of Dataset Structured Dataset collects and…
SQL (Structured query language)
SQL (Structured query language) is a programming language used by Relational Database Management System (RDBMS) for storing, accessing, adding, updating and deleting data. SQL is a declarative language where it tells what to do not how to do. In the 1970s, IBM scientists Donald Chamberlin and Raymond Boyce developed and introduced SQL. It originated from…
Database
A Database is computing system that collects and stores data in an organized and structured manner. A database is managed by Database Management System (DBMS). Applications use database to store and access data. Databases evolved from flat and hierarchical files during 1960s. Flat Database were simple flat like spreadsheet databases that were not structured which…