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NAT- Network address translation, port forwarding and port trigg
The principle of NAT Network address translation or NAT was developed in order to respond to the shortage of IP addresses with IPv4 protocol (in time the IPv6 protocol will respond to this problem). In fact, in IPv4 addressing the number ... Read more
Internet (protocols)October 16, 2008 at 09:43 AM -
Modem
A quick history of the modem The first coding to enable long distance communication was Morse, which was developed by Samuel F.B Morse in 1844. This code is made up of dots and dashes (a sort of binary language...) and made it possible to ... Read more
Internet TechnologiesOctober 16, 2008 at 09:43 AM -
OOP - Inheritance
The concept of inheritance Inheritance is specific to object-oriented programming, where a new class is created from an existing class. Inheritance (often referred to as subclasses) comes from the fact that the subclass (the newly created ... Read more
Object-Oriented ProgrammingOctober 16, 2008 at 09:43 AM -
Computer - Introduction to Memory
The Role of Memory The term "memory" applies to any electronic component capable of temporarily storing data. There are two main categories of memories: internal memory that temporarily memorises data while programs are running. Internal ... Read more
ComputerNovember 1, 2012 at 04:15 PM -
Introduction to Spreadsheet Concepts
What is a Spreadsheet? A spreadsheet (or spreadsheet program) is software that permits numerical data to be used and to perform automatic calculations on numbers contained in a table. It is also possible to automate complex calculations by ... Read more
SpreadsheetOctober 16, 2008 at 09:43 AM -
Using Telnet
Introduction to Telnet Protocols and implementation Running Telnet Commands in Telnet Introduction to Telnet Telnet is a protocol for emulating a remote terminal, which means that it can be used to run commands entered on a keyboard at a ... Read more
Internet UtilitiesNovember 12, 2012 at 12:39 PM -
Conducting a meeting
Introduction Meetings are a way of sharing, within a group of individuals, the same level of knowledge of a subject or a problem and of making decisions collectively. Additionally, decisions made collectively, with representatives of the ... Read more
Project managementOctober 16, 2008 at 09:43 AM -
Quality Organization
Quality Organization Establishing a quality procedure is a comprehensive business project that requires the participation of all employees. Therefore, it is necessary to define a "quality organization" that fits into and hinges on the ... Read more
QualityNovember 12, 2012 at 03:20 PM -
Data transmission - Analogue transmission
The principles of analogue transmission Analogue data transmission consists of sending information over a physical transmission medium in the form of a wave. Data is transmitted via a carrier wave, a simple wave whose only purpose is to ... Read more
Data transmissionOctober 16, 2008 at 09:43 AM -
Declaring a style sheet (CSS)
Declaring a style sheet Style sheets are not directly integrated into the W3C's HTML recommendations. For this reason, you need to include elements in the HTML code indicating both the type of document, meaning the version of the HTML and ... Read more
CSSOctober 16, 2008 at 09:43 AM -
E-mail scams - Fund transfer scams
Scams A "scam" is a fraudulent practice of African origin that involves extorting funds from internet users by enticing them with a sum of money and promising them a share of it. The use of scams originated in Nigeria, which has also given ... Read more
AttacksOctober 16, 2008 at 09:43 AM -
Routing over the Internet
Routers Routers are devices which make it possible to "choose" the path that datagrams will take to arrive at the destination. They are machines with several network interface cards each one of which is linked to a different network. So, ... Read more
Internet (protocols)May 24, 2012 at 03:36 PM -
FAT16 and FAT32
The FAT16 file system The first file system to be used on a Microsoft operating system was the FAT system, which uses a file allocation table. The file allocation table is actually an index which lists the content of the disk in order to ... Read more
Computer: maintenanceOctober 16, 2008 at 09:43 AM -
MKV format (Matroska Video)
MKV format The MKV format (Matroska Video) is an entirely free video format. More precisely, it is a container (hence the name Matroska, in reference to the Russian dolls contained within another) making it possible to contain video (DivX, ... Read more
VideoOctober 16, 2008 at 09:43 AM -
Positioning elements in CSS
Using style sheets along with the and tags, you can specify the location of text or images down to the pixel. This is possible with versions 4 and higher of Netscape and Internet Explorer; however, the technique is still problematic and may ... Read more
CSSOctober 16, 2008 at 09:43 AM -
ISO 9000, ISO 9001 and ISO 9004
Introduction to ISO Certification Certification is a way to attest, by the intermediary of a third-party certifier, to a company's ability to provide a service, product or system in accordance with client requirements and regulation ... Read more
QualityOctober 16, 2008 at 09:43 AM -
Introduction to DOS
The development of MS-DOS MS-DOS is the most well known operating system, the most commercialised version is that of Microsoft, christened "MS-DOS" (there are other versions such as DR-DOS). MS-DOS was created in 1981 when it was used on ... Read more
MS DosMarch 15, 2018 at 03:24 PM -
Rules for proper email use
Netiquette Netiquette (a contraction of the words "Net" and "etiquette") refers to the set of rules governing correct behavior on the Internet, in order to respect others and be respected in turn. They serve as guidelines for civility and ... Read more
EmailOctober 16, 2008 at 09:43 AM -
Multichannel audio (5.1, 6.1, 7.1)
Multichannel audio The term "multichannel audio" refers to the use of multiple audio tracks to reconstruct sound on a multi-speaker sound system. Two digits separated by a decimal point (2.1, 5.1, 6.1, 7.1, etc.) are used to classify the ... Read more
AudioOctober 16, 2008 at 09:43 AM