The latest articles by Irene Burn

  • How to convert DOS to UNIX: Linux, command

    There are several softwares to convert text files from UNIX or Linux to DOS operating systems and vice-versa. However, it always helps to know the manual conversion.

  • Unable to connect to WiFi: encrypted with WPA

    Wifi Network security is meant to protect a wireless network from unauthorized access. Sometimes it happens that users cannot connect to a wifi network encrypted with WPA. The WPA encrypted Wifi Network asks for an authentication key before a connection can be made. If a valid key is provided and the user can still not connect to a wifi network encrypted with WPA, there could be a problem in the channel. Here's how to fix it.

  • HTML document layout

    HyperText Markup Language (HTML) is based on the SGML (Standard Generalized Markup Language) metalanguage and is the format of the World Wide Web documents. An HTML page is a simple file containing text formatted with HTML tags. A web page can be built from even the most basic text editors, such as Notepad++. There are also HTML editors which display tags, attributes, and their values in different colors to make them easier to read.

  • How to edit, modify, restore the hosts file?

    The hosts file (/etc/hosts on Unix based system) is the first step in the translation of a FQDN hostname to the IP address format. When making a DNS request on any address server on the web, this file is queried first. For each name present in this file, a connection will be opened to the defined IP address. It works just like a telephone directory.

  • How to create a Local Area Network (LAN)?

    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 is a simple process shown in this article.

  • Computer buses: ISA, MCA and VLB, differences

    Expansion buses (sometimes called peripheral buses) have connectors that allow you to add a computer's expansion cards (peripherals). Different types of standard internal buses are characterized by their shape, the number of connector pins, and the type of signals (frequency, data, etc.). Read on to learn more about computer buses.

  • FAT16 and FAT32: characteristics and differences

    The first file system to be used in a Microsoft operating system was the FAT system, which uses a file allocation table. This table is an index that creates a list of disk contents to record the location of files on the disk. Since the blocks that make up a file are not always stored contiguously on the disk (a phenomenon called fragmentation), the allocation table allows the file system's structure to be maintained by creating links to the blocks that make up the file.

  • Everything about WPAN: Wireless Personal Area Network

    A Wireless Personal Area Network (WPAN for short) is a low-range wireless network that covers an area of only a few dozen meters. This network is generally used for linking peripheral devices (like printers, cellphones, and home appliances), a PDA to a computer, or just two nearby computers without using a hard-wired connection. There are several kinds of technology used for WPAN.

  • Agile software development methods

    Agile methods software development (also called Agile Modelling, denoted AG for short) reduce software lifecycle time (thus speeding up development) by firstly creating a prototype version, then integrating functionality on an iterative basis responding to customer requirements and testing throughout the development cycle.

  • Data transmission cables: types, speed

    The transmission medium is the physical vehicle that facilitates the transport of information. Guided transmission media use a solid medium (cable) for transmission. There are many cables, but the most common are Coaxial cable, Double twisted pair, and Optical fiber. In this article, we'll provide an introduction to each of them.