Cello (web browser): Difference between revisions

Cello WWW Browser
	An Internet browser from the Cornell Legal Information Institute.
Original author(s)	Thomas R. Bruce
Developer(s)	Legal Information Institute at Cornell Law School
Initial release	8 June 1993; 31 years ago
Final release	1.01a / 16 April 1994; 30 years ago
Written in	C++, makes "heavy use of Borland Object Windows libraries"
Operating system	Windows 3.1 / 3.11, OS/2, Windows NT 3.5
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)

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Cello is an early, discontinued graphical web browser for Windows 3.1; it was developed by Thomas R. Bruce of the Legal Information Institute at Cornell Law School. It was 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] Unlike most commercial browsers at that time, Cello used none 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 first 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,^{[dubious – discuss]}^[58]^[59] and instead commands were accessed through pull-down menus.^[36]

Supported Protocols

Cello supported the following protocols: HTTP 1.0, Gopher (but not Gopher+), read-only FTP,^[60] SMTP mailing, Telnet,^[61] Usenet,^[62] CSO/ph/qi directly^[63] and WAIS, HyTelnet, TechInfo, Archie, X.500, TN3270 and a number of others through public gateways.^[8]^[42]^[54]^[61]^[64]^[65]

Supported FTP servers

Cello supported the following FTP servers: most Unix servers (including SunOS, System V, and Linux), IBM VM, VMS systems, Windows NT, QVTNet, NCSA/CUTCP/Rutgers PC servers, FTP Software PC server, HellSoft NLM for Novell.^[53]^[60]

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

The following versions were released:^[1]

**16-bit Cello Releases**
Version	Date^[66]	Development cycle	Exe size^[67] (in kb)	Download	Notes
0.1^[68]	8 June 1993	Beta	347	evolt	Requires Distinct^[69]^[70] to run
0.2^[68]^[71]	14 June 1993	Beta	?	?	Changelog
0.3^[68]^[72]	16 June 1993	Beta	?	?	Changelog
0.4^[68]^[73]	18 June 1993	Beta	?	?	Changelog
0.5^[68]^[74]	24 June 1993	Beta	?	?	Changelog
0.6^[68]^[75]	30 June 1993	Beta	?	?	Changelog
WINSOCK alpha r3	6 September 1993	Alpha	374	[1]	Double click to visit link, right click to show url. Browser request contain only a GET line.^[76] Doesn't support redirections
WINSOCK alpha r6	14 October 1993	Alpha	362	[2]^{[permanent dead link]} (cello-ws.zip)	Browser request contain only a GET line.^[77] Doesn't support redirections
0.8^[54]	5 November 1993	Beta	—	—	Changelog (Distinct version discontinued)
0.9^{[A 5]}	12 November 1993	Beta-pre	?	?
0.9^{[A 6]}	16 November 1993	Beta	487	[3]	Changelog. GET requests use presently invalid protocol version.^[78] Redirections are supported.^[79] Crashes on pages with unsupported image files^[80]
0.9^{[A 7]}	22 November 1993	WINSOCK alpha r9.2	494	[4]	Issues from 0.9 beta still present. New issue: in img tag, src must be the last attribute^[81]
1.0^[53]	17 February 1994	Release	?	evolt
1.01	?	Release	?	?
1.01a^[82]	17 March 1994	release	521^[62]	[5], evolt	Cello's splash screen. Note that the image is not that of a cello, but rather a viola da gamba, its aristocratic predecessor Changelog
2.0	—	Alpha	—	—	A screenshot of Cello 2.0 in development. development ceased, first version to support HTML forms^[83]^[53]

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.^[84]

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	Win	Win	Win	Win	Win	Win	OS/2
Version		1	2.4	2.0 alpha 3	1	1.02	3.06	Beta 4	1.67	0.91
proxy		No	Yes	No	Yes	Partial	Yes	Yes	Partial	Partial
extended html		No	No	No	Yes	No	No	No	No	No
Performance
	multithreading	No	No	No	Yes	No	No	Yes	Yes	No
	dynamic linking	No	No	No	Yes	No	No	Yes	No	No
	deferred image	No	No	No	Yes	No	Yes	Yes	Yes	No
	multi-pane	No	No	No	No	No	No	Yes	No	No
	multi-window	No	No	No	No	No	No	No	Yes	No
Configurability
	kiosk mode	No	No	No	No	No	Yes	No	No	Yes
	external players	Yes	No	No	Yes	No	No	Yes	Yes	Yes
Integration
	d&d to clipboard	No	No	No	No	No	Yes	No	Yes	No
	spawnable players	No	Partial	Partial	Yes	Partial	Yes	Yes	Partial	Yes
	search engine(Find)	Yes	No	No	Yes	No	No	No	No	No
Navigation
	hotlist	No	Yes	Yes	No	Yes	Yes	Yes	No	Yes
	bookmark	Yes	No	No	Yes	No	No	No	Yes	No
	folders	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	No
	categories (tags)	No	No	No	No	No	No	No	Yes	No
	menu/button bar	No	No	Yes	No	No	Yes	No	No	No
	import	Yes	No	No	Yes	No	Yes	No	Yes	No
	export	Yes	No	No	Yes	Yes	Yes	No	No	No
	annotation	No	Yes	Yes	Yes	No	No	No	Yes	No
	auto time stamp	No	No	No	Yes	No	No	No	No	No
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. S2CID 2003788.

Derivatives

The first edition of BURKS, a project to produce non-profit CD-ROMs of resources for students of Computer Science, was based on Cello.^[85]
InterAp, by California Software Inc, was based on Cello and featured a web browser with Telnet, FTP, and a Visual Basic-compatible scripting language called NetScripts.^[56]^[86]^[87]
A version of Lovelace came bundled^[88] with Cello.^[89]

Technical

While originally Cello required the Distinct Corporation's TCP/IP stack, with the release of Cello Beta Version .8, Cello dropped support for Distinct, and became exclusively Winsock-based.^[54]^[90]

Originally, although Cello could run on OS/2, OS/2's implementation of Winsock had bugs that prevented Cello from accessing the Internet.^[61] The bug, APAR #PN52335, was later fixed allowing Cello to properly work on OS/2.^[61]^[84]

The user agent for Cello is LII-Cello/<version> libwww/2.5.^[91]

DDE support

Cello featured Dynamic Data Exchange (DDE) support. OLE support and DDE client support were planned, but never released.^[61]

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]^[92]^[93]

Processor: 80386(386SX) at 16 MHz^[8]^[89] or better^[94]
Operating System: Windows 3.1 / 3.11 / Windows NT 3.5^[5]^[6] / OS/2.^[15]
Ram: 2 MB RAM,^[36] 4 MB RAM recommended^[53]
A TCP/IP connection running Winsock

Criticism

Cello was not very stable and its development halted early.^[62]

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]^[95]

Cello also had sub-par performance in accessing the Internet and processing hypermedia documents.^[36]^[95]

Notes

^ You can view yahoo browser statistics at https://web.archive.org/web/20021204042351/http://www.cen.uiuc.edu/~ejk/bryl/ which show Cello being used.
^ The original cello site at https://www.law.cornell.edu/cello/cellotop.html is no longer up. The original ftp site at ftp://ftp.law.cornell.edu/pub/LII/Cello^{[permanent dead link]} is no longer up. The original gopher server at gopher.law.cornell.edu:70/11/listservs/cellol/ is no longer up.
^ Cello can still be downloaded at https://browsers.evolt.org/browsers/archive/cello .
^ 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.
^ Given in the "about Cello" - windows in Cello .9 beta
^ Given in the "README.1ST" of Cello
^ Given in the "DEFAULT.HTML" of Cello .9

References

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^ "Windows Sockets (Winsock) Apps - winter15.zip". cd.textfiles.com. Retrieved 23 January 2021.
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^ Berghel, Hal (1996). "The client's side of the World-Wide Web". Communications of the ACM. 39: 30. doi:10.1145/234173.234177. S2CID 2003788.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Bruce, Thomas R. (17 February 1994). "Cello v1 released". University of California. Archived from the original on 9 June 2011. Retrieved 27 March 2010. Note: to view the original link, click on it, click the anti-spammer button, go back and refresh page
^ ^a ^b ^c ^d Bruce, Thomas R. (5 November 1993). "Cello Beta v.8 Released (longish)". WWW-Talk Han-March 1994. Retrieved 27 March 2010.
^ December, John; Randall, Neil (1994). The World Wide Web unleashed. Sams Publishing. p. 21. ISBN 1-57521-040-1.
^ ^a ^b Inc, I.D.G. Network World (27 June 1994). "Network World". Network World: The Leader in Network Knowledge. IDG Network World Inc: 19, 22, 24. ISSN 0887-7661. Retrieved 28 March 2010.
^ Emslie, Mike (1994). "Setting up a World Wide Web Server". Computers in Higher Education Economics Review: Cheer. 8 (3). ISSN 1358-5363.
^ Crowe, Elizabeth Powell (2001). Genealogy Online. Osborne/McGraw-Hill. p. 24. ISBN 9780072131147. Cello has exactly three buttons on the toolbar: Up (or Back in other browsers), Stop, and Home.
^ Smith, Richard James; Gibbs, Mark; McFedries, Paul (1 January 1995). Navigating the Internet. Sams.net. p. 232. ISBN 9780672307188. The "toolbar" includes only three buttons (...)
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^ ^a ^b ^c ^d ^e "FAQ For Cello (Part 2)". Cornell Law School. Archived from the original on 11 February 2005. Retrieved 28 March 2010.
^ ^a ^b ^c Klaassen, Gerd (2001). "Das World Wide Web Museum - Programme" (in German). Fachhochschule Emden/Leer. Retrieved 27 March 2010.
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^ If no reference is given and dates differ across files, oldest date is taken.
^ Size taken from uncompressed exe file properties. Zip file size not used, because it's changeable (depends on compression method or files inside zip).
^ ^a ^b ^c ^d ^e ^f Allen, Nicholas (9 June 2008). "First Web Browser on Windows". Microsoft Developer Network. Microsoft. Retrieved 27 March 2010.
^ Mirror^{[permanent dead link]} ftp.w3.org/pc-binaries/windows
^ "DIS.ZIP - Protocol Files for Cello.Zip". annex.retroarchive.org. Archived from the original on 25 April 2019. Retrieved 29 September 2019.
^ Bruce, Thomas R. (14 June 1993). "Beta version .2 of Cello..." Retrieved 4 June 2010.
^ Bruce, Thomas R. (16 June 1993). "Cello Beta 0.3 loose". Retrieved 4 June 2010.
^ Bruce, Thomas R. (18 June 1993). "Cello beta 0.4 released". Retrieved 4 June 2010.
^ Bruce, Thomas R. (24 June 1993). "Cello Beta 0.5 out". Retrieved 4 June 2010.
^ "Cello Beta 0.6 released". ksi.cpsc.ucalgary.ca. 30 June 1993. Archived from the original on 18 July 2020. Retrieved 19 November 2019.
^ GET url\x0a
^ GET url\x0d\x0a
^ GET url HTTP/V1.0 Fix: load exe file into hex editor (also available online, for example hexed.it). Search for string "HTTP/". Remove byte with letter "V", insert byte after string "User-Agent:" and set it to space. Save the file under new name.
^ Browser hangs when "Location" header isn't an exact match (for example if its all in lowercase like on this redirect test page)
^ Also crashes when image source doesn't contain an url with file extension. Supported images (information taken from exe file; both lowercase and uppercase file extensions): gif (not animated), bmp, pcx, xbm.
^ If src attribute isn't last, Cello will treat everything after src= as image url (after removing all quotes), to the end of img tag.
^ Bruce, Thomas R. (17 March 1994). "Cello v1.01a released". Retrieved 4 June 2010.
^ December, John (1995). The World Wide Web Unleashed. Sams.net. p. 265. ISBN 9780672307379.
^ ^a ^b "OS/2 Site - Upgrades - Patches". www.os2site.com. Retrieved 23 January 2021.
^ English, John (1999). "Building self-contained websites on CD-ROM". ACM SIGCSE Bulletin. 31 (3). New York, NY, USA: ACM: 159–162. doi:10.1145/384267.305906. ISSN 0097-8418.
^ Teare, Keith (1996). "Internet software. Full internet suites: InterAp". The Easy Net Book. Keith Teare. p. 153. ISBN 9781850322528.
^ "California Software Inc. -- InterAp". www.panix.com. Retrieved 15 November 2019.
^ You can still download latest bundle (with unmodified exe of Cello 1.01a) by manually replacing "lovelace.zip" with "lovecell.zip" in the http server link.
^ ^a ^b Wheeler, David A. (5 October 1996). "Information on How to Download Lovelace#On Installing a Web Browser". Ada Home. Retrieved 27 March 2010.
^ Auug, Inc (December 1993). AUUGN. AUUG, Inc. p. 95. Retrieved 28 March 2010.
^ "HTTP Request fields". Protocols. W3C. 3 May 1994. Retrieved 28 March 2010.
^ Kottke, Jason (26 July 2005). "Cello is a graphical WWW browser like Mosaic". Retrieved 27 March 2010.
^ "PC WWW BROWSERS". PC Browsers. University of Toronto. 1 December 1995. Archived from the original on 30 December 2008. Retrieved 27 March 2010.
^ "Useful Accessibility Resource Web Sites". Web Advisory Group (WAG). US Department of Commerce Office of the CIO. 29 March 2010. Archived from the original on 1 April 2010. Retrieved 10 April 2010.
^ ^a ^b Reichard, Kevin (20 December 1995). "Reviews - Cello". CNET. Archived from the original on 12 February 1997. Retrieved 15 June 2010.

Bibliography

Romano, Nicholas C.; Nunamaker, Jay F.; Briggs, Robert O.; Vogel, Doug (1998). "Architecture, Design, and Development of an HTML/JavaScript Web-Based Group Support System". Journal of the American Society for Information Science. 49 (7): 649–667. doi:10.1002/(SICI)1097-4571(19980515)49:7<649::AID-ASI6>3.0.CO;2-1. SSRN 937380.
Grier, D.A. (2008). "Evolutionary Fervor". Computer. 41 (12): 10–12. doi:10.1109/MC.2008.529. ISSN 0018-9162. S2CID 9327151.
Jagodzinski, Cecile (1997). "Cooperative Web Weaving". Journal of Interlibrary Loan, Document Delivery & Information Supply. 8 (2): 1–20. doi:10.1300/J110V08N02_01. ISSN 1072-303X.
Berners-Lee, Tim (1 January 1997). "The World Wide Web - Past, Present and Future". Journal of Digital Information. 1 (1). ISSN 1368-7506.

External links

The official Cello home page at the Wayback Machine (archived 17 February 2004)
Cello: a well strung instrument
Cello index at W3C

[24] You can view yahoo browser statistics at https://web.archive.org/web/20021204042351/http://www.cen.uiuc.edu/~ejk/bryl/ which show Cello being used.

[30] The original cello site at https://www.law.cornell.edu/cello/cellotop.html is no longer up. The original ftp site at ftp://ftp.law.cornell.edu/pub/LII/Cello^{[permanent dead link]} is no longer up. The original gopher server at gopher.law.cornell.edu:70/11/listservs/cellol/ is no longer up.

[31] Cello can still be downloaded at https://browsers.evolt.org/browsers/archive/cello .

[39] 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.

[82] Given in the "about Cello" - windows in Cello .9 beta

[83] Given in the "README.1ST" of Cello

[87] Given in the "DEFAULT.HTML" of Cello .9

[.1_beta_release-1] Brennan, Elaine (13 June 1993). "World Wibe Web Browser: Ms-Windows (Beta) (1/149)". Humanist Archives Vol. 7. Archived from the original on 5 June 2011. Retrieved 27 March 2010.

[plans-2] Bruce, Thomas R. (12 April 1993). "Plans for cello MS-Windows client". Cornell Law School. Retrieved 2 April 2010.

[internals-3] "Internals". World Wide Web Consortium. 1993. Retrieved 20 June 2010.

[ZimmermanEvans1996_OS2-4] 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.

[nt35-5] "NT and NTAS INTERNET SLIP/PPP CONNECTIVITY FAQ". University Duisburg-Essen. Archived from the original on 19 July 2011. Retrieved 28 March 2010.

[nt35.2-6] 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.

[cello_browser-8] "The Cello Internet Browser". Cornell Law School. 9 April 1994. Archived from the original on 4 February 2005. Retrieved 28 March 2010.

[maxpc-9] Lilly, Paul (19 August 2009). "Surfing Since 1991: The Evolution of Web Browsers". MaximumPC. p. 2. Archived from the original on 25 February 2010. 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.

[13] Notess, Greg R. (March–April 1995). "COMPARING WEB BROWSERS: MOSAIC, CELLO, NETSCAPE, WINWEB AND INTERNETWORKS LITE". Online. 19 (2). Academic Search Premier: 36, 4p. ISSN 0146-5422.

[1st_browser-14] Garmon, Jay (15 April 2008). "Geek Trivia: Clear browser history". Geekend. TechRepublic. p. 2. Archived from the original on 20 April 2008. Retrieved 28 March 2010.

[os2-15] "Metropoli BBS files - /software/OS2/NETWORKS/". files.mpoli.fi. Retrieved 23 January 2021.

[Randall1994-16] Randall, Neil (1994). Teach yourself the Internet: around the world in 21 days. Sams. pp. 211–212. ISBN 978-0-672-30519-1. Retrieved 28 March 2010.

[Living_Internet-17] "Web Browser History". Living Internet. Archived from the original on 20 January 2011. Retrieved 28 March 2010.

[18] Tobias, Daniel R. (23 December 2009). ""Brand-X" Browsers -- Alphabetical List: A-G". Dan's Web Tips. Retrieved 28 March 2010.

[19] "A Future of Browsers". 2010. Archived from the original on 30 November 2010. Retrieved 28 March 2010.

[CanterSiegel1994-20] Canter, Laurence A.; Siegel, Martha S. (27 October 1994). How to make a fortune on the information superhighway: everyone's guerrilla guide to marketing on the Internet and other on-line services. HarperCollins Publishers. p. 117. ISBN 978-0-06-270131-2. Retrieved 28 March 2010.

[tech_trends-21] Descy, Don E. (September 1994). "World-Wide Web: adding multimedia to cyberspace". TechTrends (39): 15–16. doi:10.1007/BF02818773. ISSN 8756-3894. S2CID 61562129.

[windows_web_browser-22] Symoens, Jeffrey (June 1995). "Windows Web browsers". PC World (13): 125. ISSN 0737-8939.

[23] Davis, Phili (1 June 1996). "Mosaic Quick Tour for Mac". Reviews. Ventana Press. {{cite web}}: Missing or empty |url= (help)(subscription required)

[Gay2000-25] Gay, Martin (1 June 2000). Recent advances and issues in computers. Greenwood Publishing Group. p. 123. ISBN 978-1-57356-227-0. Retrieved 21 July 2010.

[best_browser-26] Hastings, Bryan; Johnson, Amy Helen (August 1996). "Best web browser". PC World. Vol. 14, no. 8. MasterFILE Premier. pp. 136, 7p. ISSN 0737-8939.

[Cello_2.0-27] "Communicating with the LII". Cornell University Law School. Retrieved 28 March 2010.

[28] Bruce, Thomas R.; Martin, Peter W. (May 1996). "The Legal Information Institute - 1995-96 Activities and Future Plans". Legal Information Institute. Retrieved 28 March 2010.

[29] "Did you know?". LII Announce. Cornell University Law School. Retrieved 2 April 2010.

[32] "May World-Wide Web News". World Wide Web Consortium. Retrieved 8 June 2010.

[Sheppard2007-33] Sheppard, Steve (April 2007). The history of legal education in the United States: commentaries and primary sources. The Lawbook Exchange, Ltd. p. 1186. ISBN 978-1-58477-690-1. Retrieved 28 March 2010.

[pioneering-34] "WEB HISTORY DAY: PIONEERING SOFTWARE AND SITES". The World Wide Web History Project. Retrieved 28 March 2010.

[35] Bruce, Thomas R. (12 April 1993). "Plans for cello MS-Windows client". Retrieved 28 March 2010.

[Ambrogi2004-36] Ambrogi, Robert J. (1 June 2004). "Chapter 3: The Best (and Worst) Legal Sites on the Web" (PDF). The essential guide to the best (and worst) legal sites on the Web. ALM Publishing. p. 22. ISBN 978-1-58852-117-0. Retrieved 28 March 2010.

[Okin2005-37] Okin, J. R. (30 September 2005). The information revolution: the not-for-dummies guide to the history, technology, and use of the World Wide Web. Ironbound Press. p. 95. ISBN 978-0-9763857-3-8. Retrieved 2 April 2010.

[Reilly2003-38] Reilly, Edwin D. (2003). Milestones in computer science and information technology. Greenwood Publishing Group. p. 33. ISBN 978-1-57356-521-9. Retrieved 2 April 2010.

[Shang-Chul_Pak-40] Pak, Sean Sang-Chul (1996). Scheme for identifying and describing behavioral innovations embodied in computer programs (Thesis). Massachusetts Institute of Technology. hdl:1721.1/40608.

[Vaughan-Nichols1995-41] Vaughan-Nichols, Steven J. (September 1995). Inside the World Wide Web. New Riders. pp. 186–187. ISBN 978-1-56205-412-0. Retrieved 4 June 2010.

[antitrust_doj-42] "U.S. v. Microsoft: Proposed Findings of Fact". Civil Action No. 98-1232 (TPJ). US DOJ. Retrieved 10 April 2010.

[43] Goodin, Dan (20 November 1997). "Justice counters MS claims". CNET News. Retrieved 2 May 2010.

[44] Lohr, Steve (5 November 1998). "Browser Memos Pose Challenge To Microsoft". The New York Times. Retrieved 2 May 2010.

[wired1-45] Scoblionkov, Deborah (7 August 1998). "Justice: MS Floating 'Old Ideas'". Wired. Retrieved 2 May 2010.

[GilliesCailliau2000-46] Gillies, James; Cailliau, R. (1 September 2000). How the Web was born: the story of the World Wide Web. Oxford University Press. p. 235. ISBN 978-0-19-286207-5. Retrieved 2 April 2010.

[practical_internet-47] Kasser, Barbara (2000). Practical Internet. New York: Knopf Books for Young Readers. p. 19. ISBN 978-0-7897-2226-3.

[48] "Winsock Client Software Reviews". Archived from the original on 20 December 1996. Retrieved 13 August 2017.. Retrieved 2014-03-17.

[adahome-49] Wheeler, David A. (5 October 1996). "Information on How to Download Lovelace". Retrieved 26 July 2010.

[50] IV, Louis (1999). Microsoft Windows Dna Exposed. New York: Knopf Books for Young Readers. p. 13. ISBN 978-0-672-31561-9.

[51] Berghel, Hal (1998). "Who won the Mosaic War?". Communications of the ACM. 41 (10): 13. doi:10.1145/286238.286240. S2CID 14458048.

[52] "Windows Sockets (Winsock) Apps - winter15.zip". cd.textfiles.com. Retrieved 23 January 2021.

[53] Berghel, Hal (1999). "Digital village: the cost of having analog executives in a digital world". Communications of the ACM. 42 (11): 11. doi:10.1145/319382.319384. S2CID 16651522.

[Castells2002-54] Castells, Álvaro (1 November 2002). Internet dictionary: a comprehensive guide to the language of the Web. Kogan Page Publishers. p. 30. ISBN 978-0-7494-3667-4. Retrieved 2 April 2010.

[Kent1999-55] Kent, Allen (29 June 1999). Encyclopedia of library and information science. CRC Press. p. 50. ISBN 978-0-8247-2064-3. Retrieved 2 April 2010.

[56] Berghel, Hal (1996). "The client's side of the World-Wide Web". Communications of the ACM. 39: 30. doi:10.1145/234173.234177. S2CID 2003788.

[version1-57] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Bruce, Thomas R. (17 February 1994). "Cello v1 released". University of California. Archived from the original on 9 June 2011. Retrieved 27 March 2010. Note: to view the original link, click on it, click the anti-spammer button, go back and refresh page

[V.8-58] Bruce, Thomas R. (5 November 1993). "Cello Beta v.8 Released (longish)". WWW-Talk Han-March 1994. Retrieved 27 March 2010.

[wwwunleashed-59] December, John; Randall, Neil (1994). The World Wide Web unleashed. Sams Publishing. p. 21. ISBN 1-57521-040-1.

[Network_World1-60] Inc, I.D.G. Network World (27 June 1994). "Network World". Network World: The Leader in Network Knowledge. IDG Network World Inc: 19, 22, 24. ISSN 0887-7661. Retrieved 28 March 2010.

[61] Emslie, Mike (1994). "Setting up a World Wide Web Server". Computers in Higher Education Economics Review: Cheer. 8 (3). ISSN 1358-5363.

[62] Crowe, Elizabeth Powell (2001). Genealogy Online. Osborne/McGraw-Hill. p. 24. ISBN 9780072131147. Cello has exactly three buttons on the toolbar: Up (or Back in other browsers), Stop, and Home.

[63] Smith, Richard James; Gibbs, Mark; McFedries, Paul (1 January 1995). Navigating the Internet. Sams.net. p. 232. ISBN 9780672307188. The "toolbar" includes only three buttons (...)

[faq1-64] Bruce, Thomas R. "FAQ for Cello". Part 1. Cornell Law School. Archived from the original on 7 December 2003. Retrieved 27 March 2010.

[faq2-65] "FAQ For Cello (Part 2)". Cornell Law School. Archived from the original on 11 February 2005. Retrieved 28 March 2010.

[FHEmden-66] Klaassen, Gerd (2001). "Das World Wide Web Museum - Programme" (in German). Fachhochschule Emden/Leer. Retrieved 27 March 2010.

[67] "Internet Browser Resources for enjoying Golden Age Radio History". Archived from the original on 10 June 2010. Retrieved 15 June 2010.

[supported_protocls-68] "Histnews: The Electronic History Newsletter". Vol.1, No.6. 12 October 1993. Retrieved 27 March 2010.

[Kressin1997-69] Kressin, Mark (15 January 1997). The Internet and the World Wide Web: a time-saving guide for new users. Prentice Hall PTR. p. 115. ISBN 978-0-13-493743-4. Retrieved 4 June 2010.

[70] If no reference is given and dates differ across files, oldest date is taken.

[71] Size taken from uncompressed exe file properties. Zip file size not used, because it's changeable (depends on compression method or files inside zip).

[allen-72] ^ ^a ^b ^c ^d ^e ^f Allen, Nicholas (9 June 2008). "First Web Browser on Windows". Microsoft Developer Network. Microsoft. Retrieved 27 March 2010.

[73] Mirror^{[permanent dead link]} ftp.w3.org/pc-binaries/windows

[74] "DIS.ZIP - Protocol Files for Cello.Zip". annex.retroarchive.org. Archived from the original on 25 April 2019. Retrieved 29 September 2019.

[75] Bruce, Thomas R. (14 June 1993). "Beta version .2 of Cello..." Retrieved 4 June 2010.

[76] Bruce, Thomas R. (16 June 1993). "Cello Beta 0.3 loose". Retrieved 4 June 2010.

[77] Bruce, Thomas R. (18 June 1993). "Cello beta 0.4 released". Retrieved 4 June 2010.

[78] Bruce, Thomas R. (24 June 1993). "Cello Beta 0.5 out". Retrieved 4 June 2010.

[79] "Cello Beta 0.6 released". ksi.cpsc.ucalgary.ca. 30 June 1993. Archived from the original on 18 July 2020. Retrieved 19 November 2019.

[80] GET url\x0a

[81] GET url\x0d\x0a

[84] GET url HTTP/V1.0 Fix: load exe file into hex editor (also available online, for example hexed.it). Search for string "HTTP/". Remove byte with letter "V", insert byte after string "User-Agent:" and set it to space. Save the file under new name.

[85] Browser hangs when "Location" header isn't an exact match (for example if its all in lowercase like on this redirect test page)

[86] Also crashes when image source doesn't contain an url with file extension. Supported images (information taken from exe file; both lowercase and uppercase file extensions): gif (not animated), bmp, pcx, xbm.

[88] If src attribute isn't last, Cello will treat everything after src= as image url (after removing all quotes), to the end of img tag.

[89] Bruce, Thomas R. (17 March 1994). "Cello v1.01a released". Retrieved 4 June 2010.

[90] December, John (1995). The World Wide Web Unleashed. Sams.net. p. 265. ISBN 9780672307379.

[APAR_#PN52335_fix-91] "OS/2 Site - Upgrades - Patches". www.os2site.com. Retrieved 23 January 2021.

[burks-92] English, John (1999). "Building self-contained websites on CD-ROM". ACM SIGCSE Bulletin. 31 (3). New York, NY, USA: ACM: 159–162. doi:10.1145/384267.305906. ISSN 0097-8418.

[93] Teare, Keith (1996). "Internet software. Full internet suites: InterAp". The Easy Net Book. Keith Teare. p. 153. ISBN 9781850322528.

[94] "California Software Inc. -- InterAp". www.panix.com. Retrieved 15 November 2019.

[95] You can still download latest bundle (with unmodified exe of Cello 1.01a) by manually replacing "lovelace.zip" with "lovecell.zip" in the http server link.

[lovelace-96] Wheeler, David A. (5 October 1996). "Information on How to Download Lovelace#On Installing a Web Browser". Ada Home. Retrieved 27 March 2010.

[AUUGN_distinct-97] Auug, Inc (December 1993). AUUGN. AUUG, Inc. p. 95. Retrieved 28 March 2010.

[98] "HTTP Request fields". Protocols. W3C. 3 May 1994. Retrieved 28 March 2010.

[99] Kottke, Jason (26 July 2005). "Cello is a graphical WWW browser like Mosaic". Retrieved 27 March 2010.

[pcbrowsers-100] "PC WWW BROWSERS". PC Browsers. University of Toronto. 1 December 1995. Archived from the original on 30 December 2008. Retrieved 27 March 2010.

[WAG-101] "Useful Accessibility Resource Web Sites". Web Advisory Group (WAG). US Department of Commerce Office of the CIO. 29 March 2010. Archived from the original on 1 April 2010. Retrieved 10 April 2010.

[cnet-102] Reichard, Kevin (20 December 1995). "Reviews - Cello". CNET. Archived from the original on 12 February 1997. Retrieved 15 June 2010.

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