Rewrite (programming)
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Rewrite (programming)
A rewrite in computer programming is the act or result of re-implementing a large portion of existing functionality without re-use of its source code. When the rewrite uses no existing code at all, it is common to speak of a rewrite from scratch. Motivations A piece of software is typically rewritten when one or more of the following apply: *its source code is not available or is only available under an incompatible license *its code cannot be adapted to a new target platform *its existing code has become too difficult to handle and extend *the task of debugging it seems too complicated *the programmer finds it difficult to understand its source code *developers learn new techniques or wish to do a big feature overhaul which requires much change *the programming language of the source code has to be changed Risks Several software engineers, such as Joel Spolsky have warned against total rewrites, especially under schedule constraints or competitive pressures. While developers ...
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Computer Programming
Computer programming or coding is the composition of sequences of instructions, called computer program, programs, that computers can follow to perform tasks. It involves designing and implementing algorithms, step-by-step specifications of procedures, by writing source code, code in one or more programming languages. Programmers typically use high-level programming languages that are more easily intelligible to humans than machine code, which is directly executed by the central processing unit. Proficient programming usually requires expertise in several different subjects, including knowledge of the Domain (software engineering), application domain, details of programming languages and generic code library (computing), libraries, specialized algorithms, and Logic#Formal logic, formal logic. Auxiliary tasks accompanying and related to programming include Requirements analysis, analyzing requirements, Software testing, testing, debugging (investigating and fixing problems), imple ...
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Apache HTTP Server
The Apache HTTP Server ( ) is a free and open-source software, free and open-source cross-platform web server, released under the terms of Apache License, Apache License 2.0. It is developed and maintained by a community of developers under the auspices of the Apache Software Foundation. The vast majority of Apache HTTP Server instances run on a Linux distribution, but current versions also run on Microsoft Windows, OpenVMS, and a wide variety of Unix-like systems. Past versions also ran on NetWare, OS/2 and other operating systems, including ports to mainframes. Originally based on the NCSA HTTPd server, development of Apache began in early 1995 after work on the NCSA code stalled. Apache played a key role in the initial growth of the World Wide Web, quickly overtaking NCSA HTTPd as the dominant HTTP server. In 2009, it became the first web server software to serve more than 100 million websites. , Netcraft estimated that Apache served 17.83% of the million busiest websites, w ...
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VBulletin
vBulletin is a proprietary Internet forum software package sold by MH Sub I, LLC doing business as vBulletin (formerly Jelsoft Enterprises and vBulletin Solutions). It is written in PHP and uses a MariaDB or MySQL database server. Similar products include XenForo, WordPress, Joomla, Drupal, MyBB, and phpBB. History vBulletin was first launched in 2000 by James Limm and John Percival. Its successor, vBulletin 2, was released in 2001. A third version was launched in 2004. Internet Brands acquired the product from JelSoft in 2007. vBulletin 4 was released in late 2009. The StyleVars system was added to draw CSS variables directly from the vBulletin Template code. In July 2010, the BBC reported that there was a serious flaw in vBulletin software that allows anyone to easily access the database username and password. In October 2010, Internet Brands sued three former employees, just as their new competing software XenForo was to be launched, as well as a second lawsuit in t ...
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Sun Secure Global Desktop
Oracle Secure Global Desktop (SGD) software provides secure access to both published applications and published desktops running on Microsoft Windows, Unix, mainframe and IBM i systems via a variety of clients ranging from fat PCs to thin clients such as Sun Rays. History SCO and Tarantella era The origins of Oracle Secure Global Desktop goes back to 1993, when the Santa Cruz Operation (SCO) acquired IXI Limited, a software company in Cambridge, UK, best known for its X.desktop product. In 1994 it then bought Visionware, of Leeds, UK, developers of XVision. In 1995 the development teams from IXI and Visionware were combined to form IXI Visionware, later the Client Integration Division of SCO. From there, the Tarantella product was devised, with the goal "any application, any client, anywhere": access to applications of any type (hosted on back-end servers) from any client device that supported a Java-enabled web browser. The first public release of Tarantella software was i ...
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Project Xanadu
Project Xanadu ( ) was the first hypertext project, founded in 1960 by Ted Nelson. Administrators of Project Xanadu have declared it superior to the World Wide Web, with the mission statement: "Today's popular software simulates paper. The World Wide Web (another imitation of paper) trivialises our original hypertext model with one-way ever-breaking links and no management of version or contents." ''Wired'' magazine published an article entitled "The Curse of Xanadu", calling Project Xanadu "the longest-running vaporware story in the history of the computer industry"., archive-url=https://web.archive.org/web/20151026021059/https://www.wired.com/1995/06/xanadu/, archive-date=October 26, 2015, url-status=live The first attempt at implementation began in 1960, but it was not until 1998 that an incomplete implementation was released. A version described as "a working deliverable", OpenXanadu, was made available in 2014. History Nelson's vision was for a "digital repository scheme f ...
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Netcat
netcat (often abbreviated to nc) is a computer networking utility for reading from and writing to network connections using Transmission Control Protocol, TCP or User Datagram Protocol, UDP. The command (computing), command is designed to be a dependable front and back ends, back-end that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool, since it can produce almost any kind of connection its user could need and has a number of built-in capabilities. It is able to perform Port scanner, port scanning, File transfer, file transferring and port listening. Features The original netcat's features include: * Outbound or inbound connections, TCP or UDP, to or from any ports * Full Reverse DNS lookup, DNS forward/reverse checking, with appropriate warnings * Ability to use any local source port * Ability to use any locally configured network source address * Built-in port-scanning capabi ...
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Icecast
Icecast is a streaming media project released as free software maintained by the Xiph.Org Foundation. It also refers specifically to the Server (computing), server program which is part of the project. Icecast was created in December 1998/January 1999 by Jack Moffitt (computer scientist), Jack Moffitt and Barath Raghavan to provide an open-source software, open-source audio streaming server that anyone could modify, use, and tinker with. Version 2, a Rewrite (programming), ground-up rewrite aimed at multi-format support (initially targeting Vorbis, Ogg Vorbis) and scalability, was started in 2001 and released in January 2004. History Icecast was originally developed by Moffitt in 1998 for Southern Methodist University, SMU's radio station. At the time, the station was constantly losing its FCC license and was at the time only able to reach listeners in the same building. Given that all of the dorms throughout campus had Ethernet connectivity, using streaming audio to broadcast ...
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History Of Mozilla Application Suite
The history of the Mozilla Application Suite began with the release of the source code of the Netscape suite as an open source project. Going through years of hard work (with the help of the community contributors), Mozilla 1.0 was eventually released on June 5, 2002. Its backend code base, most notably the Gecko layout engine, has become the foundation of a number of applications based on Mozilla, including the Mozilla Foundation's flagship product Mozilla Firefox and Mozilla Thunderbird. While the suite is no longer a formal Mozilla product, its development and maintenance is continued as the SeaMonkey community project. Open sourcing of Communicator In March 1998, Netscape Communications Corporation released most of the code base for its popular Netscape Communicator suite under an open source license. The name of the application developed from this would be ''Mozilla'', coordinated by the newly created Mozilla Organization, at the mozilla.org website. The open source release, ...
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History Of Wikipedia
Wikipedia, a free content, free-content online encyclopedia written and maintained by a community of volunteers known as Wikipedians, began with its First Wikipedia edit, first edit on 15 January 2001, two days after the domain was registered. It grew out of Nupedia, a more structured free encyclopedia, as a way to allow easier and faster drafting of articles and translations. The technological and conceptual underpinnings of Wikipedia predate this; the earliest known proposal for an online encyclopedia was made by Rick Gates (Internet pioneer), Rick Gates in 1993, and the concept of a free as in freedom, free-as-in-freedom online encyclopedia (as Alternative terms for free software, distinct from mere open source) was proposed by Richard Stallman in 1998. Stallman's concept specifically included the idea that no central organization should control editing. This contrasted with contemporary digital encyclopedias such as Encarta, Microsoft Encarta and ''Encyclopædia Britannic ...
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Majordomo (software)
Majordomo is a mailing list manager (MLM) developed by Brent Chapman. It is written in Perl and works in conjunction with sendmail on UNIX and related operating systems. The name is derived from Latin "majordomo" meaning "master of the house"; in English, the word refers to a large household's chief servant. The current version of Majordomo is 1.94.5, released 19 January 2000. The official Web site warns that it will not work with Perl versions 5.001 and 5.005_01 specifically. It recommends using Perl 4.036 or the latest version available. Support for Perl 4.036 may not be kept for the future. History With the advent of email, many mailing lists were maintained manually, with a list owner adding and removing participants by editing a text file. In 1984, LISTSERV was developed to run on IBM VM mainframes, and automated mailing lists on a large scale. Most mailing lists moved to commercial mailing list hosting services, often with a stipend of $100 or more paid to the list own ...
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GNU GRUB
GNU GRUB (short for GNU GRand Unified Bootloader, commonly referred to as GRUB) is a boot loader package from the GNU Project. GRUB is the reference implementation of the Free Software Foundation's Multiboot Specification, which provides a user the choice to boot one of multiple operating systems installed on a computer set up for multi-booting or select a specific Kernel (operating system), kernel configuration available on a particular operating system's partitions. GNU GRUB was developed from a package called the ''Grand Unified Bootloader'' (a play on Grand Unified Theory). It is predominantly used for Unix-like systems. Operation Booting When a computer is turned on, its BIOS finds the primary bootable device (usually the computer's hard disk) and runs the initial Bootstrapping (computing), bootstrap program from the master boot record (MBR). The MBR is the first Disk sector, sector of the hard disk. This bootstrap program must be small because it has to fit in a sin ...
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