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  • Types of connectors

    5-pin DIN plugs A DIN (or DIN5) connector is a plug with 5 pins, formerly used to connect keyboards to computers: The ... Read more

    Cables and connectors
    October 16, 2008 at 09:43 AM
  • User management in Windows NT

    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

    Windows NT (XP,Vista,...)
    October 16, 2008 at 09:43 AM
  • FTP protocol (File Transfer Protocol)

    Introduction to FTP protocol FTP protocol (File Transfer Protocol) is, as its name indicates a protocol for transferring files. The implementation of FTP dates from 1971 when a file transfer system (described in RFC141) between MIT ... Read more

    Internet (protocols)
    October 16, 2008 at 09:43 AM
  • Cathode Ray Tube monitor (CRT)

    Cathode ray tube monitor Most monitors (computer screens) use cathode ray tubes (or CRT for short), which are glass vacuum tubes into which an electron gun emits a flow of electrons guided by an electrical field towards a screen covered in ... Read more

    Computer
    April 28, 2009 at 10:40 AM
  • WPAN (Wireless Personal Area Network)

    Wireless Personal Area Networks (WPAN) A wireless personal area network (WPAN for short) is a low-range wireless network which covers an area of only a few dozen metres. This sort of network is generally used for linking peripheral devices ... Read more

    Wireless
    October 16, 2008 at 09:43 AM
  • 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

    Email
    October 16, 2008 at 09:43 AM
  • Introduction to Wi-Fi (802.11 or WiFi)

    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

    Wifi
    October 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

    CSS
    October 16, 2008 at 09:43 AM
  • History of the hard drive

    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 (with the name standing for Random Access Method of Accounting and Control), a ... Read more

    Computer history
    October 16, 2008 at 09:43 AM
  • Processor

    Introduction Operation Instructions Registers Cache Memory Control Signals Functional Units Transistor Integrated ... Read more

    Computer
    August 21, 2013 at 12:56 AM
  • Creating a local area network

    Why set up a local area network? When you have several computers, it can be convenient to connect them to each other to create a local area network (LAN). Setting up such a network costs very little, contrary to what people may think. Here ... Read more

    Network configuration
    October 16, 2008 at 09:43 AM
  • 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

    Spreadsheet
    October 16, 2008 at 09:43 AM
  • WiMAX - 802.16 - Worldwide Interoperability for Microwave Access

    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

    Wimax
    October 16, 2008 at 09:43 AM
  • General Terms and Conditions of Use

    All Rights Reserved - 2013 - Communitic International Object These General Terms and Conditions are meant to define the ways in which the services of the website CCM.net, hereafter "The Service," are made available, as well as the ... Read more

    Terms of Use
    June 13, 2016 at 11:48 AM
  • Substitution cipher

    Substitution cipher Substitution cipher involves replacing one or more entities (generally letters) in a message with one or more other entities. There are several types of substitution cryptosystems: Monoalphabetic substitution involves ... Read more

    Cryptography
    October 16, 2008 at 09:43 AM
  • CCM - Who we are

    Welcome to We are France's number one tech website (CommentCaMarche.net). Every day, millions of users ... Read more

    About Us
    September 15, 2017 at 07:08 AM
  • MS DOS Files and directories

    Files in MS DOS In a computers data is stored in files. When you run a program, MS-DOS processes the data stored in the file and passes it to the system. In MS-DOS a file can be any size, however the file name is more restricted, it can ... Read more

    MS Dos
    October 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

    Computer
    November 1, 2012 at 04:15 PM
  • Terms of Use for CCM.net

    Preface These terms of use have been written in order to inform users of the site of its conditions of use, in particular for using of communications services (such as the bulletin board) which let users the world over, ... Read more

    Terms of Use
    June 13, 2016 at 11:49 AM
  • Types of computers

    Types of computers There are several families of computers, depending on their format: Mainframes, computers which a great deal of computing power, enormous input-output capabilities and high level of reliability. Mainframes are used by ... Read more

    Computer
    November 1, 2012 at 04:13 PM