Web browsers: Mosaic, Netscape, Lynx, Microsoft's Internet Explorer

Mosaic

National Center for Supercomputing Applications (NCSA), University of Illinois

One of NCSA's missions -- aid scientific research community by producing widely available, non-commercial software

NCSA's Software Design Group -- produced versatile, multi-platform interface to World-Wide Web -- called it Mosaic


Mosaic's Origin

Mosaic was created during a four-month period in late 1992 and early 1993 by Marc Andreessen and colleagues. Wrote thousands of lines of code -- "all-nighters, chocolate-chip cookies, milk, Skittles, and Mountain Dew".

Marc left University of Illinois. Today, 27-year-old Andreessen is vice president for technology of Netscape Communications.


Mosaic's history

Early, 1993 -- first version of NCSA's Web browser Mosaic made available to Internet community

Due to easy, point-and-click hypermedia interface, Mosaic set standard for Web interfaces

Currently versions of Mosaic running on Unix-based workstations, Macintoshes, PCs running Microsoft Windows, ....


Marc Andreessen was a co-founder of Netscape Communications Corporation

First version of Netscape available October, 1994

Continuous document streaming, enabling users to view documents while they are still being downloaded rather than waiting for the entire document to load

Available for Microsoft Windows, Apple Macintosh, and X Window System environments

Netscape has been responsible for advances in HTML as well

For more information: http://home.netscape.com/


Mosaic and Netscape need TCP/IP

Both Mosaic and Netscape (like most Web browsers) must be run on Internet node

For a PC or workstation connected as a terminal to an Internet node, this requires TCP/IP through SLIP or PPP software


Lynx

Lynx is a World-Wide Web browser that displays only characters -- no graphics, no audio

Lynx must be run on Internet node

Lynx is useful for terminals, PCs, or MACs connected to Internet systems via modems with no SLIP/PPP (TCP/IP) access

Academic Computing Services, University of Kansas

For more information link to http://www.cc.ukans.edu /about_lynx /about_lynx.html


Microsoft's Internet Explorer is based on Spyglass' Mosaic browser

Developed specifically for use with Windows 95 operating system

New HTML Extensions -- Marquees, AVI (Audio Video Interleave) inline video clips, selectable fonts, background sounds

Support for Secure Sockets Layer (SSL) and RSA encryption technology

E-mail support integrated with Exchange Inbox included in Windows 95, so all mail can be viewed from same location

Mail package also supports Internet MIME standard for multimedia mail

VRML (Virtual Reality Modelling Language) ready -- Internet Explorer will have 3-D viewer

HTTP-KeepAlive -- Open and download multiple items over same HTTP connection instead of opening new connection for each file -- since most Web pages are made up of several files from same server

Download status indicator -- When you minimize Internet Explorer during download, icon changes to give status indicator on progress of download

Internet Explorer is part of Microsoft Internet Jumpstart Kit and Microsoft Plus!

Various viewers (for example, RealAudio Player) already integrated