Mosaic (web browser)
NCSA Mosaic 3.0 for Windows
|Initial release||0.5 / January 23, 1993|
3.0 / January 7, 1997
Classic Mac OS
NCSA Mosaic, or simply Mosaic, is a discontinued early web browser. It has been credited with popularizing the World Wide Web. It was also a client for earlier protocols such as File Transfer Protocol, Network News Transfer Protocol, and Gopher. The browser was named for its support of multiple internet protocols. Its intuitive interface, reliability, Windows port and simple installation all contributed to its popularity within the web, as well as on Microsoft operating systems. Mosaic was also the first browser to display images inline with text instead of displaying images in a separate window. While often described as the first graphical web browser, Mosaic was preceded by WorldWideWeb, the lesser-known Erwise and ViolaWWW.
Mosaic was developed at the National Center for Supercomputing Applications (NCSA) at the University of Illinois Urbana-Champaign beginning in late 1992. NCSA released the browser in 1993, and officially discontinued development and support on January 7, 1997. However, it can still be downloaded from NCSA.
Netscape Navigator was later developed by Netscape, which employed many of the original Mosaic authors; however, it intentionally shared no code with Mosaic. Netscape Navigator's code descendant is Mozilla Firefox. Starting in 1995 Mosaic lost a lot of share to Netscape Navigator, and by 1997 only had a tiny fraction of users left, by which time the project was discontinued. Microsoft licensed Mosaic to create Internet Explorer in 1995.
David Thompson tested ViolaWWW and showed the application to Marc Andreessen. Andreessen and Eric Bina originally designed and programmed NCSA Mosaic for Unix's X Window System called xmosaic. Then, in December 1991, the Gore Bill created and introduced by then Senator and future Vice President Al Gore was passed, which provided the funding for the Mosaic project. Development began in December 1992. Marc Andreessen announced the project on Jan 23, 1993. The first alpha release (numbered 0.1a) was published in June 1993, and the first beta release (numbered 0.6b) followed quickly thereafter in September 1993. Version 1.0 for Windows was released on November 11, 1993. NCSA Mosaic for Unix (X-Windows) version 2.0 was released on November 10, 1993. A port of Mosaic to the Commodore Amiga was available by October 1993. Ports to Windows and Macintosh had already been released in September. From 1994 to 1997, the National Science Foundation supported the further development of Mosaic.
Marc Andreessen, the leader of the team that developed Mosaic, left NCSA and, with James H. Clark, one of the founders of Silicon Graphics, Inc. (SGI), and four other former students and staff of the University of Illinois, started Mosaic Communications Corporation. Mosaic Communications eventually became Netscape Communications Corporation, producing Netscape Navigator.
Spyglass, Inc. licensed the technology and trademarks from NCSA for producing their own web browser but never used any of the NCSA Mosaic source code. Microsoft licensed Spyglass Mosaic in 1995 for US$2 million, modified it, and renamed it Internet Explorer. After a later auditing dispute, Microsoft paid Spyglass $8 million. The 1995 user guide The HTML Sourcebook: The Complete Guide to HTML, specifically states, in a section called Coming Attractions, that Internet Explorer "will be based on the Mosaic program".:331 Versions of Internet Explorer before version 7 stated "Based on NCSA Mosaic" in the About box. Internet Explorer 7 was audited by Microsoft to ensure that it contained no Mosaic code, and thus no longer credits Spyglass or Mosaic.
The licensing terms for NCSA Mosaic were generous for a proprietary software program. In general, non-commercial use was free of charge for all versions (with certain limitations). Additionally, the X Window System/Unix version publicly provided source code (source code for the other versions was available after agreements were signed). Despite persistent rumors to the contrary, however, Mosaic was never released as open source software during its brief reign as a major browser; there were always constraints on permissible uses without payment.
As of 1993, license holders included these:
- Amdahl Corporation
- Fujitsu Limited (Product: Infomosaic, a Japanese version of Mosaic. Price: Yen5,000 (approx US$50)
- InfoSeek Corporation (Product: No commercial Mosaic. May use Mosaic as part of a commercial database effort)
- Quadralay Corporation (Consumer version of Mosaic. Also using Mosaic in its online help and information product, GWHIS. Price: US$249)
- Quarterdeck Office Systems Inc.
- The Santa Cruz Operation Inc. (Product: Incorporating Mosaic into "SCO Global Access," a communications package for Unix machines that works with SCO's Open Server. Runs a graphical e-mail service and accesses newsgroups.)
- SPRY Inc. (Products: A communication suite: Air Mail, Air News, Air Mosaic, etc. Also producing Internet In a Box with O'Reilly & Associates. Price: US$149–$399 for Air Series.)
- Spyglass, Inc. (Product: Relicensing to other vendors. Signed deal with Digital Equipment Corp., which would ship Mosaic with all its machines.)
In the October 1994 issue of Wired Magazine, Gary Wolfe notes in the article titled "The (Second Phase of the) Revolution Has Begun: Don't look now, but Prodigy, AOL, and CompuServe are all suddenly obsolete - and Mosaic is well on its way to becoming the world's standard interface":
When it comes to smashing a paradigm, pleasure is not the most important thing. It is the only thing. If this sounds wrong, consider Mosaic. Mosaic is the celebrated graphical "browser" that allows users to travel through the world of electronic information using a point-and-click interface. Mosaic's charming appearance encourages users to load their own documents onto the Net, including color photos, sound bites, video clips, and hypertext "links" to other documents. By following the links - click, and the linked document appears - you can travel through the online world along paths of whim and intuition. Mosaic is not the most direct way to find online information. Nor is it the most powerful. It is merely the most pleasurable way, and in the 18 months since it was released, Mosaic has incited a rush of excitement and commercial energy unprecedented in the history of the Net.
Importance of Mosaic
Mosaic was the web browser that led to the Internet boom of the 1990s. Robert Reid underscores this importance stating, "while still an undergraduate, Marc wrote the Mosaic software ... that made the web popularly relevant and touched off the revolution".:xlii Reid notes that Andreessen's team hoped:
... to rectify many of the shortcomings of the very primitive prototypes then floating around the Internet. Most significantly, their work transformed the appeal of the Web from niche uses in the technical area to mass-market appeal. In particular, these University of Illinois students made two key changes to the Web browser, which hyper-boosted its appeal: they added graphics to what was otherwise boring text-based software, and, most importantly, they ported the software from so-called Unix computers that are popular only in technical and academic circles, to the Windows operating system, which is used on more than 80 percent of the computers in the world, especially personal and commercial computers.:xxv
Mosaic is not the first web browser for Windows; this is Thomas R. Bruce's little-known Cello. And the Unix version of Mosaic was already famous before the Windows and Mac versions were released. Other than displaying images embedded in the text rather than in a separate window, Mosaic's original feature set is not greater than of the browsers on which it was modeled, such as ViolaWWW. But Mosaic was the first browser written and supported by a team of full-time programmers, was reliable and easy enough for novices to install, and the inline graphics reportedly proved immensely appealing. Mosaic is said to have made the Web accessible to the ordinary person for the first time and already had 53% market share in 1995.
Reid also refers to Matthew K. Gray's website, Internet Statistics: Growth and Usage of the Web and the Internet, which indicates a dramatic leap in web use around the time of Mosaic's introduction.:xxv
In addition, David Hudson concurs with Reid, noting that:
Marc Andreessen's realization of Mosaic, based on the work of Berners-Lee and the hypertext theorists before him, is generally recognized as the beginning of the web as it is now known. Mosaic, the first web browser to win over the Net masses, was released in 1993 and made freely accessible to the public. The adjective phenomenal, so often overused in this industry, is genuinely applicable to the... 'explosion' in the growth of the web after Mosaic appeared on the scene. Starting with next to nothing, the rates of the web growth (quoted in the press) hovering around tens of thousands of percent over ridiculously short periods of time were no real surprise.:42
Ultimately, web browsers such as Mosaic became the killer applications of the 1990s. Web browsers were the first to bring a graphical interface to search tools the Internet's burgeoning wealth of distributed information services. A mid-1994 guide lists Mosaic alongside the traditional, text-oriented information search tools of the time, Archie and Veronica, Gopher, and WAIS but Mosaic quickly subsumed and displaced them all. Joseph Hardin, the director of the NCSA group within which Mosaic was developed, said downloads were up to 50,000 a month in mid-1994.
In November 1992, there were twenty-six websites in the world and each one attracted attention. In its release year of 1993, Mosaic had a What's New page, and about one new link was being added per day. This was a time when access to the Internet was expanding rapidly outside its previous domain of academia and large industrial research institutions. Yet it was the availability of Mosaic and Mosaic-derived graphical browsers themselves that drove the explosive growth of the Web to over 10,000 sites by Aug 1995 and millions by 1998. Metcalf expressed the pivotal role of Mosaic this way:
In the Web's first generation, Tim Berners-Lee launched the Uniform Resource Locator (URL), Hypertext Transfer Protocol (HTTP), and HTML standards with prototype Unix-based servers and browsers. A few people noticed that the Web might be better than Gopher.
In the second generation, Marc Andreessen and Eric Bina developed NCSA Mosaic at the University of Illinois. Several million then suddenly noticed that the Web might be better than sex.In the third generation, Andreessen and Bina left NCSA to found Netscape...
End of Mosaic
Mosaic's popularity as a separate browser began to lessen upon the release of Andreessen's Netscape Navigator in 1994. This was noted at the time in The HTML Sourcebook: The Complete Guide to HTML: "Netscape Communications has designed an all-new WWW browser Netscape, that has significant enhancements over the original Mosaic program.":332
By 1998 its user base had almost completely evaporated, being replaced by other web browsers. After NCSA stopped work on Mosaic, development of the NCSA Mosaic for the X Window System source code was continued by several independent groups. These independent development efforts include mMosaic (multicast Mosaic) which ceased development in early 2004, and Mosaic-CK and VMS Mosaic.
VMS Mosaic, a version specifically targeting OpenVMS operating system, was one of the longest-lived efforts to maintain Mosaic. Using the VMS support already built-in in original version (Bjorn S. Nilsson ported Mosaic 1.2 to VMS in the summer of 1993), developers incorporated a substantial part of the HTML engine from mMosaic, another defunct flavor of the browser. As of 3 September 2003[update], VMS Mosaic supported HTML 4.0, OpenSSL, cookies, and various image formats including GIF, JPEG, PNG, BMP, TGA, TIFF and JPEG 2000 image formats. The browser works on VAX, Alpha, and Itanium platforms.
Another long-lived version of Mosaic – Mosaic-CK, developed by Cameron Kaiser – saw its last release (version 2.7ck9) on July 11, 2010; a maintenance release with minor compatibility fixes (version 2.7ck10) was released on 9 January 2015, followed by another one (2.7ck11) in October 2015. The stated goal of the project is "Lynx with graphics" and runs on Mac OS X, Power MachTen, Linux and other compatible Unix-like OSs.
|This section needs expansion. You can help by adding to it. (November 2010)|
- Comparison of web browsers
- History of the World Wide Web
- Kevin Hughes (Internet pioneer)
- List of web browsers
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- Welcome to Mosaic Communications Corporation!
- NCSA Mosaic 1.0 home page at Déjà Vu (dejavu.org)
- Beyond the Web: Excavating the Real World Via Mosaic - early application of Mosaic
- NCSA Mosaic for modern Linux systems at GitHub
- NCSA Mosaic Archive
- In The Beginning... - A history of the Windows development effort.
- Mosaic archive on evolt.org
- Mosaic for OpenVMS systems
- VMS Mosaic home page at the Wayback Machine (archived November 17, 2013)
- Mosaic-CK home page