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  • Telnet protocol

    Introduction to the Telnet protocol The Telnet protocol is a standard internet protocol enabling terminals and applications to interface over the Internet. This protocol provides the basic rules making it possible to link a client (system ... Read more

    Internet (protocols)
    October 29, 2012 at 03:45 PM
  • Graphics cards - Video cards

    2D Accelerator Cards A graphics card, sometimes called a graphics adapter, video card or graphics accelerator, is a computer component which converts digital data into a graphical form which can be displayed on a monitor. The initial role ... Read more

    Computer
    October 16, 2008 at 09:43 AM
  • Computer screen or monitor

    Introduction to computer monitors A monitor (or screen) is a computer display unit. There are generally said to be two families of monitors: Cathode-ray tube monitors (or CRT for short), which are used with most desktop computers. They are ... Read more

    Computer
    November 1, 2012 at 04:17 PM
  • ISP - Internet service providers

    What does ISP mean? ISP literally means Internet service provider or provider. It is a service (most of the time paid for) which allows you to connect to the Internet. Why use an ISP? Unless you have a specialized line (other than a ... Read more

    Internet Utilities
    October 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
  • Motherboard

    Introduction to motherboards Characteristics Motherboard form factor Integrated components The chipset The CMOS clock and battery The BIOS The processor ... Read more

    Computer
    November 12, 2012 at 12:49 PM
  • Flashing the BIOS

    What does it mean "to flash"? The BIOS (Basic Input/Output System) is a small memory chip located on the motherboard containing data that defines the system parameters. The data may, however, contain errors (bugs). Furthermore, when new ... Read more

    Computer: maintenance
    May 25, 2012 at 07:23 PM
  • Propagation of Radio Waves (802.11)

    Propagation of Radio Waves In order to be able to install a wireless network, and in particular to place the access points so as to get the best range possible, a little background should be given on how radio waves propagate. Radio waves ... Read more

    Wireless
    October 16, 2008 at 09:43 AM
  • Hard drive

    The role of the hard drive Structure How it works Block mode 32-bit mode Technical specifications The role of the hard drive The hard drive is the component which is used to permanently store data, as opposed to RAM, which is erased ... Read more

    Computer
    November 7, 2012 at 09:23 AM
  • Error checking

    Error checking Binary encoding is very practical for use in electronic devices such as computers, in which information can be encoded based on whether an electrical signal is present or not. However, this electrical signal may suffer ... Read more

    Encoding
    October 16, 2008 at 09:43 AM
  • Establishing a Quality Procedure

    Establishing a Quality Procedure Improving quality (reducing bad quality and improving work processes) in a company requires reflection by both the management and all the employees in order to define the reachable goals in terms of quality ... Read more

    Quality
    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
  • 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 ... Read more

    CSS
    October 16, 2008 at 09:43 AM
  • Proxy and reverse proxy servers

    Proxy servers A proxy server is a machine which acts as an intermediary between the computers of a local area network (sometimes using protocols other than TCP/IP) and the Internet Most of the time the proxy server is used for the web, and ... Read more

    Local Area Network
    October 16, 2008 at 09:43 AM
  • Web server attacks

    Vulnerability of web services The first network attacks exploited vulnerabilities related to the implementation of TCP/IP protocol suites. With the gradual correction of these vulnerabilities, attacks have shifted to application layers and ... Read more

    Attacks
    October 16, 2008 at 09:43 AM
  • 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
  • ntvdm - ntvdm.exe

    ntvdm - ntvdm.exe ntvdm.exe (Windows 16-bit Virtual Machine) is a Windows NT/2000/XP generic process used for providing a 16-bit environment for old 16-bit applications. The process ntvdm is not in any way a virus, a worm, a Trojan horse, ... Read more

    Windows processes
    October 16, 2008 at 09:43 AM
  • Introduction to Windows NT

    Introduction to Microsoft Windows NT Windows NT (for "New Technology") is a 32-bit operating system developed by Microsoft. Windows NT's outward appearance makes it look a lot like Windows 95/98/Millennium, but Windows NT has a separately ... Read more

    Windows NT (XP,Vista,...)
    October 16, 2008 at 09:43 AM
  • Agile Methods (RAD, XP)

    Agile methods "Agile methods" software development (also called Agile Modelling denoted AG for short) reduce software lifecycle time (thus speeding up development) by firstly developing a prototype version, then integrating functionality ... Read more

    Software engineering
    October 16, 2008 at 09:43 AM
  • 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 management
    October 16, 2008 at 09:43 AM