Cello (web browser)

Cello WWW Browser

Original author(s) Thomas R. Bruce
Developer(s) Legal Information Institute at Cornell Law School
Initial release 8 June 1993 (1993-06-08)[1]
Last release
1.01a / 16 April 1994 (1994-04-16)
Development status Discontinued
Written in C++,[2] makes "heavy use of Borland Object Windows libraries"[3]
Operating system Windows 3.1 / 3.11, OS/2,[4] Windows NT 3.5[5][6]
Size 325 kb
Available in English
Type Web browser
License Shareware/Proprietary
Website www.law.cornell.edu/cello/ at the Wayback Machine (archived 4 February 2005)

Cello was an early graphical web browser for Windows 3.1, developed by Thomas R. Bruce of the Legal Information Institute at Cornell Law School, and released as shareware in 1993.[7][8] While other browsers ran on various Unix machines, Cello was the first web browser for Microsoft Windows, using the winsock system to access the Internet.[9][10][11][12][13][14] In addition to the basic Windows, Cello worked on Windows NT 3.5[5][6] and with small modifications on OS/2.[15][16]

Cello was created because of a demand for Web access by lawyers, who were more likely to use Microsoft Windows than the Unix operating systems supporting earlier Web browsers, including the first release of Mosaic. The lack of a Windows browser meant many legal experts were unable to access legal information made available in hypertext on the World Wide Web.[9][17] Cello was popular during 1993/1994, but fell out of favor following the release of Mosaic for Windows and Netscape, after which Cello development was abandoned.[18][19][20][21][22][23][A 1][24]

Cello was first publicly released on 8 June 1993.[1] A version 2.0 was announced, but development was abandoned. Version 1.01a, 16 April 1994, was the last public release.[25][26] Since then, the Legal Information Institute at Cornell Law School has licensed the Cello 2.0 source code, which has been used to develop commercial software.[26][27][28]

The browser is no longer available from its original homepage.[A 2] However, it can still be downloaded from mirror sites.[A 3]

Development and history

The icon prior to version 1

The development of Cello started in 1992, with beta versions planned for June 1993 and a release for July 1993.[29][30][31] It was publicly announced on 12 April 1993.[32]

The Legal Information Institute at Cornell Law School created the first law site on the Internet in 1992 and the first legal website in 1993. However, at the time, there were no web browsers for the Microsoft Windows operating system, which was used by most lawyers. Thus, to allow lawyers to use their website, the Legal Information Institute developed the first Windows-based Web browser.[33][34][35] This was made possible by a grant from the National Center for Automated Information Research.[A 4]

Although other browsers at the time were based on CERN's WWW libraries called libwww, PCs of the time were not powerful enough to run the UNIX-oriented code.[31] As a result, Thomas Bruce had to rewrite most of the WWW libraries to work on Microsoft Windows.[31] It should also be noted that unlike most commercial browsers at that time, Cello didn't utilize any of Mosaic's source code and thus had a different look and feel.[36][37]

Steven Sinofsky, president of the Windows division at Microsoft wrote in a June 1994 email: We do not currently plan on any other client software [in the upcoming release of Windows 95], especially something like Mosaic or Cello.[38][39][40][41] Nevertheless, on 11 January 1995, Microsoft announced that it had licensed the Mosaic technology from Spyglass, which it would use to create Internet Explorer.[41] On 15 August 1995, Microsoft debuted its own web browser Internet Explorer 1 for Windows 95. While it did not ship with the original release of Windows 95, it shipped with Microsoft Plus! for Windows 95.

Usage

When released in 1993, Cello was the only browser for the Microsoft Windows platform. Shortly after launch, Cello was being downloaded at a rate of 500 copies per day.[42] As such, it achieved a fair amount of use and recognition within the legal community, including a number of PC users with between 150,000 and 200,000 users.[31] In 1994, most websites were visited using either the Cello browser or the Mosaic browser.[43] Despite having fewer features than Mosaic, Cello continued to be used due to its simpler interface and lower system requirements.[44] Cello was praised for being easy to install, because it wasn't necessary to install Win32s or a TCP/IP stack for Windows 3.1.[45] Following the release of Windows 95, which offered a much better TCP/IP interface, Cello fell into disuse and was abandoned.[43][46]

By 1995, Cello, like the Mosaic browser, was overshadowed by two newer browsers: Netscape and Internet Explorer and fell into disuse.[47][48] By 1999, Cello was considered to be a "historical" browser.[49][50]

Cello is considered to be one of the early casualties of the Browser wars.[51]

Features

Cello had the following features:[52]

  • inline graphics support: GIF, XBM, PCX, and BMP.[53][54]
  • PostScript viewing and sound playing
  • File saving and printing.[53]
  • Editing support for local files via an external editor. Integration with the HTMLAssistant Windows-based HTML helper/editor.[53]
  • File caching ad infinitum using a file-based cache with user-specified "low water mark".[53]
  • DDE and OLE drag-and-drop support. Cello can be invoked and controlled through the use of DDE macros in other programs. URL arguments on the command line are also supported.[53]
  • "Peek mode", permitting partial retrieval of files of large or unknown size.[53]
  • Local file mode for HTML delivery on standalone machines or machines with LAN connections only.[53]
  • Support for HTML "mailto:" scheme[53] with integrated email sending client.[55]
  • Support for the full HTML+ ISO-LATIN character set, including specialized legal symbols, foreign characters, etc.[53]
  • User-selectable sound players, viewers, editor, and Telnet and TN3270 clients.[53]
  • Comprehensive online documentation in Windows Help format.[53]
  • Simple user interface.[53]
  • Fully extensible support for viewing downloaded files in an unlimited number of PC-binary file formats using the standard Windows Associate... scheme.[53]
  • Bookmarks[16]
  • Local browsing[56]
  • Simpler interface (compared to Mosaic)[57]

Unlike Mosaic, Cello did not have toolbar buttons, and instead commands were accessed through pull-down menus.[36]

Supported Protocols

Cello supported the following protocols: HTTP 1.0, Gopher (not Gopher+), read-only FTP,[58] SMTP mailing, Telnet,[59] Usenet,[60] CSO/ph/qi directly[61] and WAIS, HyTelnet, TechInfo, Archie, X.500, TN3270 and a number of others through public gateways.[8][42][54][59][62][63]

Supported FTP servers

Cello supported the following FTP servers: most Unix servers(including SunOS, System V, and Linux),IBM VM, IBM VM, VMS systems, Windows NT, QVTNet, NCSA/CUTCP/Rutgers PC servers,FTP Software PC server, HellSoft NLM for Novell.[53][58]

Internet Connection

Cello works best with a direct Ethernet connection, but it also supports SLIP and PPP dialup connections through the use of asynchronous sockets.[8] Cello has an integrated TCP/IP runtime stack.[45]

Release history

Cello's splash screen. Note that the image is not that of a cello, but rather a viola da gamba, its aristocratic predecessor
A screenshot of Cello 2.0 in development.

The following versions were released:[1]

16-bit Cello Releases
Version Date Development cycle Size (in kb) Download Notes
0.1[64] 9 June 1993 Beta ? evolt
0.2[64][65] 14 June 1993 Beta ? ? Changelog
0.3[64][66] 16 June 1993 Beta ? ? Changelog
0.4[64][67] 18 June 1993 Beta ? ? Changelog
0.5[64][68] 24 June 1993 Beta ? ? Changelog
0.6[64] 30 June 1993 Beta ? ? changelog
0.8[54] 5 November 1993 Beta N/A N/A Changelog (Distinct version discontinued)
0.9[A 5] 12 November 1993 Beta-pre ?
0.9[A 6] 16 November 1993 Beta ? Changelog
0.9[A 7] 22 November 1993 WINSOCK alpha r9.2 ?
1.0[53] 17 February 1994 Release ? evolt
1.01 ? Release ? ?
1.01a [69] 17 March 1994 release 521[60] , evolt Changelog
2.0 N/A Alpha N/A N/A development ceased

Although Cello 2.0 had been announced, development ceased before a public release.[26]

IBM released a fix for their TCP/IP V2.0 stack so that Cello would work with OS/2 WinOS/2 on 9 February 1994.[70]

Browser Comparison Table

The following table shows how Cello compared to browsers of its time.

Comparison of Web Browsers
Browser Cello NCSA X-Mosaic NCSA Mosaic Netscape Navigator Spyglass Mosaic AIR Mosaic Internetworks Win-Tapestry IBM WebExplorer
Operating System Win UNIX WinWinWinWinWinWinOS/2
Version 12.4.20-alpha 311.023.06Beta 41.670.91
proxyNoYesNoYesPartialYesYesPartialPartial
extended htmlNoNoNoYesNoNoNoNoNo
Performance
multithreadingNoNoNoYesNoNoYesYesNo
dynamic linkingNoNoNoYesNoNoYesNoNo
deferred imageNoNoNoYesNoYesYesYesNo
multi-paneNoNoNoNoNoNoYesNoNo
multi-windowNoNoNoNoNoNoNoYesNo
Configurability
kiosk modeNoNoNoNoNoYesNoNoYes
external playersYesNoNoYesNoNoYesYesYes
Integration
d&d to clipboardNoNoNoNoNoYesNoYesNo
spawnable playersNoPartialPartialYesPartialYesYesPartialYes
search engine(Find)YesNoNoYesNoNoNoNoNo
Navigation
hotlistNoYesYesNoYesYesYesNoYes
bookmarkYesNoNoYesNoNoNoYesNo
foldersYesYesYesYesNoYesYesYesNo
categories (tags)NoNoNoNoNoNoNoYesNo
menu/button barNoNoYesNoNoYesNoNoNo
importYesNoNoYesNoYesNoYesNo
exportYesNoNoYesYesYesNoNoNo
annotationNoYesYesYesNoNoNoYesNo
auto time stampNoNoNoYesNoNoNoNoNo
Source: Berghel, Hal (1996). "The client's side of the World-Wide Web". Communications of the ACM. 39 (1): 30–40. doi:10.1145/234173.234177. ISSN 0001-0782. 

Derivatives

Technical

The user agent for Cello is: LII-Cello/<version> libwww/2.5 so the latest one is LII-Cello/1.0 libwww/2.5[74]

DDE support

Cello featured DDE support. OLE support and DDE client support were planned, but never released.[59]

An example of how to invoke Cello from a Microsoft Word macro.

Sub MAIN
ChanNum = DDEInitiate("Cello", "URL")
DDEExecute(ChanNum, "http://www.law.cornell.edu")
DDETerminate(ChanNum)
End Sub

System requirements

Cello has the following system requirements: [8][75][76]

Criticism

Cello was not very stable and its development halted early.[60]

Cello did not render graphics well and required that the user reload the webpage when resizing the window. Like most browsers at the time, Cello also did not support any web security protocols.[37] It was also said that Cello rendered html "crudely" and pages would appear jaggedly.[36][37][78]

Cello also had sub-par performance in accessing the Internet and processing hypermedia documents.[36][78]

See also

Annotations

  1. ↑ You can view yahoo browser statistics at http://web.archive.org/web/20021204042351/http://www.cen.uiuc.edu/~ejk/bryl/ which show Cello being used.
  2. ↑ The original cello site at http://www.law.cornell.edu/cello/cellotop.html is no longer up. The original ftp site at ftp://ftp.law.cornell.edu/pub/LII/Cello is no longer up. The original gopher server at gopher.law.cornell.edu:70/11/listservs/cellol/ is no longer up.
  3. ↑ Cello can still be downloaded at http://browsers.evolt.org/?cello/ .
  4. ↑ This can be seen in the "About Cello" dialog in Cello. It is also stated in the "Notices, Acknowledgments, Disclaimers" section of the included .hlp file in Cello.
  5. ↑ Given in the "about Cello" - windows in Cello
  6. ↑ Given in the "README.1ST" of Cello .9
  7. ↑ Given in the "DEFAULT.HTML" of Cello .9

References

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  2. ↑ Bruce, Thomas R. (12 April 1993). "Plans for cello MS-Windows client". Cornell Law School. Retrieved 2 April 2010.
  3. ↑ "Internals". World Wide Web Consortium. 1993. Retrieved 20 June 2010.
  4. ↑ Zimmerman, Scott; Evans, Tim (1996). "Chapter 1: Understanding Web Technologies". Building an Intranet with Windows Nt 4. Sams.net. ISBN 978-1-57521-205-0. Retrieved 28 March 2010.
  5. 1 2 3 "NT and NTAS INTERNET SLIP/PPP CONNECTIVITY FAQ". University Duisburg-Essen. Retrieved 28 March 2010.
  6. 1 2 3 Christopher, Klaus (28 December 2003) [4 August 1997]. "Newbie Security Questions". Antionline Forums. Retrieved 28 March 2010.
  7. ↑ Sendall, Mike (29 March 1995). "World Wide Web Clients". W3C. Retrieved 28 March 2010.
  8. 1 2 3 4 5 "The Cello Internet Browser". Cornell Law School. 9 April 1994. Archived from the original on 4 February 2005. Retrieved 28 March 2010.
  9. 1 2 Lilly, Paul (19 August 2009). "Surfing Since 1991: The Evolution of Web Browsers". MaximumPC. p. 2. Retrieved 27 March 2010.
  10. ↑ Kelly, Brian. "3 World-Wide Web Browsers". Running a WWW service. Computing Service, University of Leeds. Retrieved 27 March 2010.
  11. ↑ "The Legal Information Institute - A Quick Overview". Legal Information Institute, Cornell University Law School. Retrieved 27 March 2010.
  12. ↑ Ron, Gustavson (August 1996). "Browsing at large". CD-ROM Professional. 9 (8): 38, 3p. ISSN 1049-0833.
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Bibliography

Further reading

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