There are several kinds of hardware that may be used to implement a WiFi wireless network, including wireless adapters and access points. Wireless adapters, or network interface controllers (NICs for short), are network cards with the... Read more
Partitioning is the process of writing the hard drive sectors that will make up the partition table. It contains information on the partition, including sector size, position with respect to the primary partition, types of partitions... Read more
An email has three basic parts. The first is the header, a set of lines containing information about the message's transportation, such as the sender's address, the recipient's address, or timestamps showing when the message was sent by... Read more
Different types of private networks are distinguished based on their sizes (in terms of the number of machines), their data transfer speeds, and their reach. Private networks are networks that belong to a single organization. There are... Read more
As simple as it is to use, email relies on a more complicated set of operating procedures than that of the Web. For most users, its operation is transparent, which means that it is not necessary to understand how email works in order to... Read more
Introduction to Formulas The main use of a spreadsheet is to automate calculations, which means using cells to perform operations based on values in other cells. The spreadsheet recalculates all the values each time a change is made to... Read more
In computing, a bus is defined as a set of physical connections (i.e. cables, printed circuits, etc.), which can be shared by multiple hardware components in order to communicate with one another. The purpose of buses is to reduce the... Read more
The URL (Uniform Resource Locator) of a web application is the vector that makes it possible to indicate the requested resource. This article will show you how to protect yourself against URL manipulation attacks. The Makeup of a URL... Read more
Introduction to digital transmission Digital transmission is the sending of information over a physical communications media in the form of digital signals. Analogue signals must therefore be digitised first before being transmitted.... Read more
The term Electronic commerce (or e-Commerce) refers to the use of an electronic medium to carry out commercial transactions. Most of the time, it refers to the sale of products via Internet, but the term eCommerce also covers purchasing... Read more
In client/server systems, there are several types of configurations. This article will get into 2-tier architecture and 3-tier architecture and explain the differences and the similarities of the two systems. 2-Tier Architecture 3... Read more
The generic term network refers to a group of entities (i.e. objects, people, etc.) that are connected to one another. A network, therefore, allows material or immaterial elements to be circulated among all of these entities, based on... Read more
Introduction to Wi-Fi (802.11) The IEEE 802.11 specification (ISO/IEC 8802-11) is an international standard describing the characteristics of a wireless local area network (WLAN). The name Wi-Fi (short for "Wireless Fidelity", sometimes... Read more
Introduction to sound cards Sound card connectors Introduction to sound cards The sound card (also called an audio card) is the part of a computer which manages its audio input and ouput. It is usually a controller which can be... Read more
A PC is a modular type of computer that can be assembled using hardware components made by different manufacturers. This allows you to have a custom-built computer that matches your specific needs. This article will explain to you the... Read more
Introduction to Client/Server Architecture Numerous applications run in a client/server environment, this means that client computers (computers forming part of the network) contact a server, generally a very powerful computer in terms... Read more
What is WiMAX ? WiMAX is short for Worldwide Interoperability for Microwave Access. It is a metropolitan wireless standard created by the companies Intel and Alvarion in 2002 and ratified by the IEEE (Institute of Electrical and... Read more
A given transmission on a communications channel between two machines can occur in several different ways. The transmission is characterized by: tthe direction of the exchanges; the transmission mode, or the number of bits sent... Read more
What is email? Electronic mail (also known as email or e-mail) is one of the most commonly used services on the Internet, allowing people to send messages to one or more recipients. Email was invented by Ray Tomlinson in 1972. Why use... Read more
The notion of a user Windows NT is an operating system which manages sessions, meaning that when the system is started, it is necessary to log in with a user name and password. When Windows NT is installed, the administrator account is... Read more
