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  • Webmastering - Website Ergonomics

    The Concept of Ergonomics Ergonomics is the use of scientific knowledge about humans (psychology, physiology, medicine) with the aim of improving the workplace environment. Ergonomics is generally characterized by two components: ... Read more

    Webmastering
    October 16, 2008 at 09:43 AM
  • WWAN - Wireless Wide Area Networks

    Wireless Wide Area Networks (WWAN) Wireless Wide Area Networks (WWAN) are the most common of all wireless networks, because all mobile phones are connected to a wireless wide area network. The main technologies are: GSM (Global System for ... Read more

    Wireless
    October 16, 2008 at 09:43 AM
  • Network equipment - The hub

    What is a hub? A hub is an element of hardware for centralising network traffic coming from multiple hosts, and to propagate the signal. The hub has a certain number of ports (it has enough ports to link machines to one another, usually 4, ... Read more

    Local Area Network
    October 16, 2008 at 09:43 AM
  • Connecting several computers to a network on Windows

    Networking on Windows 2000/XP In order to configure each computer, you need only go to the control panel, then double-click on "network connections", and then right-click "local network connection", and select properties! The various ... Read more

    Practical notes
    October 16, 2008 at 09:43 AM
  • Quality - Process Management

    The Concept of Processes The process model consists in considering a company's goal to be to provide products and/or services that meet client expectations. Thus, the company is modeled as a series of processes that allows the company to ... Read more

    Quality
    October 16, 2008 at 09:43 AM
  • Partition - Partitioning a hard drive

    What is a partition? The partitioning of a hard drive occurs after the drive has been physically formatted but before it is logically formatted. It involves creating areas on the disk where data will not be mixed. It can be used, for ... Read more

    Computer: maintenance
    April 28, 2009 at 06:04 AM
  • Introduction to UNIX systems

    The UNIX system The Unix system is a multi-user, multi tasking operating system which means that it allows a single or multiprocessor computer to simultaneously execute several programs by one or several users. It has one or several ... Read more

    UNIX
    October 16, 2008 at 09:43 AM
  • Spreadsheets - Data Entry

    Cell Content A cell of a worksheet can contain a value or be empty. The value of a cell has two essential characteristics: a type, which means the intrinsic type of the data. There are generally three types of values: numeric values, for ... Read more

    Spreadsheet
    October 16, 2008 at 09:43 AM
  • Passwords

    Passwords Attack methods Brute force cracking Dictionary attack Hybrid attack Choosing a password Password policies Multiple ... Read more

    Attacks
    November 12, 2012 at 12:41 PM
  • IP Address

    What is an IP address? Computers communicate over the Internet using the IP protocol (Internet Protocol), which uses numerical addresses, called IP addresses, made up of four whole numbers (4 bytes) between 0 and 255 and written in the ... Read more

    Internet (protocols)
    October 16, 2008 at 09:43 AM
  • grpconv - grpconv.exe

    grpconv - grpconv.exe grpconv.exe (grpconv stands for Windows Program Group Converter) is a Windows NT/2000/XP generic process used for converting program groups from older versions of Windows. The process grpconv is not in any way a virus ... Read more

    Windows processes
    October 16, 2008 at 09:43 AM
  • The Windows User Interface

    The Taskbar The Windows 9x user interface (9x refers to Windows 95 and Windows 98 together) is characterised by a bar at the bottom of your screen (it may be moved to another edge by left-mouse-clicking on it and dragging it to the desired ... Read more

    Windows
    October 16, 2008 at 09:43 AM
  • Random access memory (RAM or PC memory)

    Types of random access memory Operation of the random access memory RAM module formats DRAM PM DRAM FPM DRAM EDO SDRAM DR-SDRAM (Rambus DRAM) DDR-SDRAM DDR2-SDRAM summary table Synchronization (timings) Error correction Parity bit ECC ... Read more

    Computer
    November 12, 2012 at 03:33 PM
  • msconfig - msconfig.exe

    msconfig - msconfig.exe msconfig.exe (msconfig) is a standard process in Windows XP (and earlier versions of Windows) for editing the startup configuration. MsConfig is mainly used for removing processes loaded when Windows is booted. How ... Read more

    Windows processes
    October 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 Utilities
    November 12, 2012 at 12:39 PM
  • Introduction to attacks

    Introduction to attacks Any computer connected to a computing network is potentially vulnerable to an attack. An "attack" is the exploitation of a flaw in a computing system (operating system, software program or user system) for purposes ... Read more

    Attacks
    October 16, 2008 at 09:43 AM
  • E-mail bombing

    E-mail Bombing E-mail bombing involves sending several thousand identical messages to an electronic mailbox in order to overflow it. E-mails are stored on a messaging server until they are picked up by the owner of the messaging account. ... Read more

    Attacks
    October 16, 2008 at 09:43 AM
  • Introduction to power line communications (PLC)

    Introduction to PLC "Power Line Communications" basically means any technology that enables data transfer at narrow or broad band speeds through power lines by using advanced modulation technology. Depending on the country, the institution ... Read more

    Power Line Communications
    October 16, 2008 at 09:43 AM
  • Peer-to-peer networking

    Introduction to peer-to-peer architecture In contrast to client-server networks there is no dedicated server in peer-to-peer architecture . Thus each computer in such a network is part server and part client. This means that each computer ... Read more

    Client/Server
    November 12, 2012 at 12:43 PM
  • Computer - ISA, MCA and VLB Buses

    Expansion Bus Expansion buses (sometimes called peripheral buses) are buses that have connectors that allow you to add expansion cards (peripherals) to a computer. There are different types of standard internal buses that are characterised ... Read more

    Computer
    October 16, 2008 at 09:43 AM