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  • Binary Encoding

    In the late 1930s, Claude Shannon showed that by using switches which that close for "true" and open for "false," it was possible to carry out logical operations by assigning the number 1 to "true" and 0 for "false." This information ... Read more

    Encoding
    June 19, 2018 at 07:24 PM
  • Office Automation - Introduction

    What is office automation? Office suite tools What is office automation? The term office automation refers to all tools and methods that are applied to office activities which make it possible to process written, visual, and sound data in ... Read more

    Office software
    March 15, 2018 at 03:53 PM
  • Book disk

    System disk A system disk, also sometimes called a boot disk, is a disk that will allow you to start a computer when the operating system no longer responds, as the result of a virus for example. This disk contains special information that ... Read more

    Computer: maintenance
    October 16, 2008 at 09:43 AM
  • Web- Introduction to the World Wide Web

    The "Web," short for "World Wide Web" (which gives us the acronym www), is the name for one of the ways that the internet lets people browse documents connected by hypertext links. The concept of the Web was perfected at CERN (Conseil ... Read more

    World Wide Web
    March 2, 2016 at 05:01 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
  • 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
  • Introduction to Encryption with DES

    On May 15, 1973, the NBS (National Bureau of Standards, now called NIST (National Institute of Standards and Technology) published a request in the Federal Register for an encryption algorithm that would meet the following criteria: have a ... Read more

    Cryptography
    June 19, 2018 at 07:09 PM
  • 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
  • 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
  • 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
  • Cmd (cmd.exe)

    Windows Command Prompt or cmd.exe is a Windows NT/2000/XP generic process that opens a text- ... Read more

    Windows processes
    June 22, 2018 at 01:06 AM
  • Introduction to Microsoft Windows

    History of Windows Windows is the operating system sold by the Seattle-based company Microsoft. Microsoft, originally christened "Traf-O-Data" in 1972, was renamed "Micro-soft" in November 1975, then "Microsoft" on November 26, 1976. ... Read more

    Windows
    March 8, 2018 at 09:54 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
  • The Printer

    Printers Characteristics Daisy Wheel Printer Dot-Matrix Printer Inkjet Printer and Bubble Jet Printer Laser Printer LED Printer Printer Command Language Print Servers Printers The printer is a peripheral that allows you to make a print-out ... Read more

    Computer
    November 7, 2012 at 08:26 AM
  • Motherboard

    Introduction to motherboards Characteristics Motherboard form factor Integrated components The chipset The CMOS ... Read more

    Computer
    November 12, 2012 at 12:49 PM
  • Wireless Metropolitan Area Networks

    Wireless Metropolitan Area Networks (WMAN) A Wireless Metropolitan Area Network (WMAN) is also known as a Wireless Local Loop (WLL). WMANs are based on the IEEE 802.16 standard. Wireless local loop can reach effective transfer speeds of 1 ... Read more

    Wireless
    October 16, 2008 at 09:43 AM
  • 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
  • ccmexec - ccmexec.exe

    ccmexec - ccmexec.exe The process ccmexec.exe (Microsoft SMS Agent Host ) is part of the Microsoft SMS (Systems Management Server) suite, which is mainly used to distribute software patches to the machines on a network. The file that ... Read more

    Windows processes
    October 16, 2008 at 09:43 AM
  • Processor

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

    Computer
    August 21, 2013 at 12:56 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