Beginners

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Light
Light is a form of energy that has two aspects: An electromagnetic wave aspect A corpuscular aspect (photons) The light emitted by...
Beginners > Video
IT
The word "informatique" is a neologism made by contraction of the words "information" and "automatique". The French word...
Beginners > Computer science
Creating a LAN
If you have several computers, it may be worthwhile to connect them in order to create a local area network (LAN). Setting up such a...
Beginners > Practical notes
Digital Audio
Sound is vibrations in the air; that is, a series of rising and falling pressures in the air, deviating from the average, which is...
Beginners > Audio
Introduction to Office Automation
The term office automation refers to all tools and methods that are applied to office activities which make it possible to process...
Beginners > Office software
Introduction to Spreadsheet Concepts
A spreadsheet (or spreadsheet program) is software that permits numerical data to be used and to perform automatic calculations on...
Beginners > Spreadsheet
History of the Internet
In 1962, as Communism grew stronger, the US Air Force asked a small team of researchers to create a military communications network...
Beginners > Computer history
MP3
MP3 ("MPEG Audio layer 3") is a lossy audio data compression format, developed by the International Organization for Standardization...
Beginners > Audio
Computer representation of colour
In order to be able to handle colours correctly and to exchange colorimetric information it is necessary to have the means to...
Beginners > Video
Spreadsheets - The Excel Interface
Microsoft Excel is the spreadsheet in the Microsoft Office office suite. To start it, simply click on the appropriate icon in the...
Beginners > Spreadsheet
Computer - History
The history of the computer owes its existence to the fact that people, who are lazy by nature, have always sought to improve their...
Beginners > Computer history
Installing a network card
The goal is to set up a network in order to exchange data or play games on the network. Thus, it is necessary to install a network...
Beginners > Practical notes
Connecting several computers to a network on Windows
In order to configure each computer, you need only go to the control panel, then double-click on "network connections", and then right...
Beginners > Practical notes
Ogg Vorbis
Ogg Vorbis is an audio data compression format developed by Xiph.org. As with the MP3 format, it's a form of compression which reduces...
Beginners > Audio
CIE / Lab (L*a*b) coding
Colours may be perceived differently depending on individuals and may be displayed differently depending on the peripheral display...
Beginners > Video
Spreadsheets - Worksheets
Spreadsheets display data and formulas in a table form (lines and columns) called a worksheet. A worksheet is made of lines (numbered...
Beginners > Spreadsheet
History of the hard drive
The first hard drive was invented in early 1956, at the request of the US Air Force, by the company IBM. It was called the RAMAC 305...
Beginners > Computer history
Worksheet - Cells
A "cell" is the intersection between a line (horizontal) and a column (vertical) on a worksheet. Thus, the name of the line combined...
Beginners > Spreadsheet
Sharing an Internet connection on Windows XP
If you have a LAN (two or more computers connected in a network, i.e., each has a network card), of which one is connected to the...
Beginners > Practical notes
AAC (m4a)
AAC (Audio Advanced Coding) is an audio data compression format developed by the Fraunhofer Institute in cooperation with AT, Nokia,...
Beginners > Audio
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