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  • Partitioning a Hard Drive for Mac, Windows, and Linux

    Partitioning is the process of writing the hard drive sectors that will make up the partition table. It contains information on the partition, including sector size, position with respect to the primary partition, types of partitions ... Read more

    Computer: maintenance
    May 23, 2018 at 06:20 PM
  • Data transmission - Digital data transmission

    Introduction to digital transmission Digital transmission is the sending of information over a physical communications media in the form of digital signals. Analogue signals must therefore be digitised first before being transmitted. ... Read more

    Data transmission
    February 6, 2018 at 05:42 AM
  • General Terms and Conditions of Use

    All Rights Reserved - 2018 © Communitic International Object Legal Disclaimers and Imprint Definitions ... Read more

    Terms of Use
    June 8, 2018 at 08:25 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,...)
    March 15, 2018 at 03:20 PM
  • Bluetooth - How it works

    How Bluetooth works Communication principle Establishing connections Bluetooth profiles How Bluetooth works The Bluetooth standard, like WiFi, uses the FHSS technique (Frequency-Hopping Spread Spectrum), which involves splitting the ... Read more

    Bluetooth
    October 29, 2013 at 04:30 PM
  • DB25 connector

    DB25 plugs The DB25 (originally DE-25) connector is an analog 25-pin plug of the D-Subminiature connector family (D-Sub or Sub-D). As with the DB9 connector, the DB25 is mainly used for serial connections, allowing for the asynchronous ... Read more

    Cables and connectors
    October 16, 2008 at 09:43 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
  • zlclient - zlclient.exe

    zlclient - zlclient.exe zlclient.exe (zlclient stands for Zone Labs Client) is a process which corresponds to the firewall ZoneAlarm. It is an application which can safely be terminated. However, it is recommended that you not do so, in ... Read more

    Windows processes
    October 16, 2008 at 09:43 AM
  • Cables and connectors

    Connectors In information science, connectors, normally called "input-output connectors" (or I/O for short), are interfaces for linking devices by using cables. They generally have a male end with pins protruding from it. This plug is ... Read more

    Cables and connectors
    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
  • 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
  • Client/Server Environment

    Introduction to Client/Server Architecture Numerous applications run in a client/server environment, this means that client computers (computers forming part of the network) contact a server, generally a very powerful computer in terms of ... Read more

    Client/Server
    October 16, 2008 at 09:43 AM
  • Operating Systems - MS-DOS - Commands

    Command Description dir lists the contents of a folder cd changes folder cd .. parent folder md or mkdir creates a new folder deltree deletes a folder and all sub-folders copy, xcopy copies a file move moves a file del deletes a file type ... Read more

    MS Dos
    October 16, 2008 at 09:43 AM
  • Client / Contractor

    Contractor and Client * ==Client== The client refers to the entity that has the need that defines the project objective, schedule, and dedicated budget. The expected result of the project is the creation of a product, called works. The ... Read more

    Project management
    March 15, 2018 at 03:41 PM
  • Spreadsheets - The Excel Interface

    Excel Introduction Microsoft Excel is the spreadsheet in the Microsoft Office office suite. To start it, simply click on the appropriate icon in the Start menu (in Windows) or click on an Excel file (that has an .xls file extension). A ... Read more

    Spreadsheet
    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
  • Leased lines (T1, T2, T3)

    Leased lines "Leased" lines enable transmission of data at medium and high speeds (64 Kbps to 140 Mbps) by point to point or multipoint connection (Transfix service). In Europe, there are five types of lines distinguished according to ... Read more

    Internet Technologies
    October 16, 2008 at 09:43 AM
  • Data transmission - Cabling

    Cabling types Coaxial cable Transceiver: the connection between Thinnet and Thicknet Coaxial cable connectors Twisted pair cabling Unshielded Twisted Pair (UTP) Shielded Twisted Pair (STP) Twisted pair connectors Fibre optics Cabling types ... Read more

    Data transmission
    November 7, 2012 at 08:25 AM
  • Representation of real numbers and integers

    Representing a number in a computer Representing (or encoding) a number means to express it in binary form. Representing numbers in a computer is necessary in order for it to be able to store and manipulate them. However, the problem is ... Read more

    Encoding
    October 16, 2008 at 09:43 AM
  • Spreadsheet - Functions

    The Concept of a Function Spreadsheets generally have a large number of integrated functions for processing data. There are hundreds, categorised as follows: Arithmetic functions that offer basic tools to process numerical data Statistical ... Read more

    Spreadsheet
    October 16, 2008 at 09:43 AM