also known as ethical hacking, is a legal and legitimate practice of testing and assessing computer systems, networks, applications, and devices for security vulnerabilities. White hat hackers, often referred to as ethical hackers, use their skills and knowledge to find weaknesses in a system with the permission of the system's owner or authorized party. Their primary goal is to identify and fix potential security issues before malicious hackers can exploit them.

a system for communicating without wires over a computer network

an operating system used by the majority of PCs

A computer word, like a byte, is a group of fixed number of bits processed as a unit which varies from computer to computer but is fixed for each computer. The length of a computer word is called word-size or word length and it may be as small as 8 bits or may be as long as 96 bits. A computer stores the information in the form of computer words.

The World Wide Web usually called the web is global collection of multimedia document and files, which are stored on computers connected to the internet. The World Wide Web is a package designed to present detailed information about an organization, products, services etc. It`s an avenue on the internet whereby an individual or organization presents its products and services to the world. In the world of education, the website of an institution includes all necessary information about the institution such as the history, the brochure, the admission requirements, etc. This is made available on the internet as a website for assesment by interested students. Typical examples of websites are http://www.atafom.university. The first http://www is referred to as protocol (http - hyper text transfer protocol) while the domain name is atafom, and university is the domain type.