Author: Shulav Shrestha

Data Science: Introduction Data science is an interdisciplinary field that uses scientific methods, processes, algorithms, and systems to extract knowledge and insights from data in various forms, both structured and unstructured. Data science is the process of extracting hidden patterns from large data sets. It combines different techniques like machine learning, statistics, and database management. Data science is used to make decisions in various fields like medicine, business, and engineering. Basic Concept of Data Science Data science is a branch of computer science that deals with extracting knowledge from data. It is a multidisciplinary field that uses scientific methods, algorithms,…

Penetration Testing: Introduction If you want to improve your organisation’s security posture, one of the most important things you can do is perform regular penetration tests. Penetration testing, also known as pen testing or ethical hacking, is a simulated attack on your systems and networks to identify vulnerabilities that real-world attackers could exploit. Penetration tests can be conducted internally by your security team or by hiring a professional firm. Either way, it is essential to ensure that the tests are comprehensive and cover all potential attack vectors, from the network and application-level attacks to social engineering. Performing regular penetration tests…

What are Data and Big Data? Data is defined as a set of values organised in a specific way. Big data is a term used to describe data sets that are too large or complex for traditional data processing applications. Big data sets often include unstructured data, meaning it does not have a pre-defined data model or is not organised in a conventional database. The term “big data” has been used in business and technology circles for several years and has applied to many situations. The concept of big data refers to the challenges posed by extensive data sets, but…

Introduction Cyber terrorism is a term used to describe the use of digital technologies to conduct acts of terrorism. This can include using the internet to spread propaganda and incite violence, hacking into critical infrastructure to cause disruption, or conducting cyber-attacks against financial institutions. Cyber terrorists may also use social media to spread their message and recruit new members. Various security organizations view cyberterrorism and the parties involved differently. The FBI defines cyberterrorism as any premeditated, politically motivated attack against information, computer systems, computer programs, and data by subnational groups or clandestine operatives, resulting in violence against noncombatant targets. A…

Introduction A permitted attempt to acquire unauthorised access to a computer system, application, or data is ethical hacking. Carrying out an ethical hack involves duplicating the strategies and actions of malicious attackers. This approach aids in the detection of security flaws, which users can then address before a malicious attacker has a chance to exploit them. This article will discuss ethical hacking and how it helps organisations by providing them with more insight into their systems and vulnerabilities. There are many different types of hackers, and we will explain what each is used for and how we can use ethical…

Introduction Cryptographically secured, distributed ledgers, also known as blockchains, are the latest innovation technology changing how we do business. This article will provide a short history of the technology. We will also discuss why governments want to use blockchains, where new start-ups are popping up, and whether you should be able to buy a house on your phone. Blockchain technology is a decentralised database that stores information in data blocks chained together. It differs from traditional databases because it allows multiple users to see the same data simultaneously, without any user having control over it. The blockchain database contains records…

Introduction Virtualization is a process of creating various virtual versions of something, including but not limited to a virtual computer hardware platform, operating system, storage device, or computer network resources. Virtualization can be applied to many things including: Computer hardwareOperating systemsStorage devices and data storage Virtualization can also be applied to many other things as well such as business processes and organizations themselves. In the case of virtualization, software in which the process of creating a virtual version is carried out is called a hypervisor, or virtual machine monitor (VMM). The word virtual might be used by itself in this…

Introduction Business Intelligence is a methodology that uses technology, technical tools, applications etc., to transform an organisation’s data into actionable insights. The management uses it to make well-informed decisions concerning their organisations. In the modern information age, business intelligence has become extremely popular and is one of the essential tools you can use as an organisation. Business Intelligence is an umbrella term that covers a range of analytical tools used to extract meaningful information from data applied to business scenarios. BI enables decision-makers to make better-informed decisions by analysing past data, predicting future trends, and analysing past trends. It helps…

Introduction The supercomputer is a computer that has more computing power than the average personal computer. It can perform hundreds of millions of calculations every second. Scientists use these computers to run complex simulations and create 3D models, in finance to analyse vast amounts of data, and in weather forecasting to predict the weather with greater accuracy. People initially used the term supercomputer to refer only to the fastest computers in the world at any given time. Still, today it refers more broadly to all types of machines capable of performing at speeds far beyond what we would expect from…

Introduction Humans have been using nanotechnology since the Bronze Age and have developed techniques to produce materials on the nanoscale. In recent years, new techniques such as atomic layer deposition, DNA origami, and 3D printing have enabled the production of nanoparticles with a wide range of shapes and sizes. This has increased interest in the potential use of these particles for various applications, including catalysis, energy storage, drug delivery systems, biosensors, and other medical imaging devices. Nanotechnology studies small objects and how they interact in their environment. Nanotechnology has applications in many fields, including information technology. Nanotechnology was first…