NCSA X Mosaic 0.5 released

Marc Andreessen (
Sat, 23 Jan 93 07:21:17 -0800

By the power vested in me by nobody in particular, alpha/beta version
0.5 of NCSA's Motif-based networked information systems and World Wide
Web browser, X Mosaic, is hereby released:


This release of X Mosaic is known to compile on the following

SGI (IRIX 4.0.2)
IBM (AIX 3.2)
Sun 4 (SunOS 4.1.2 with stock X11R4 and Motif 1.1).

Binaries for these platforms are available on in
/Web/xmosaic/binaries-0.5. More binaries will be supplied as I am
able to find other Motif-configured platforms to use (DEC MIPS
probably within the next half hour).

Although this is alpha/beta software, I'm looking more for feedback on
design and functionality than bug reports right now -- down the road
the bulk of the program will be rewritten in C++ anyway, so don't take
the current code too seriously. But bug reports are welcome too. New
releases will probably come out about every 7-14 days until 1.0

A list of current and future capabilities of X Mosaic follows this


Marc Andreessen
Software Development Group
National Center for Supercomputing Applications

Current capabilities ....................

Motif interface. Multiple toplevel windows. Save/mail/print document (plaintext or HTML). Document source- and URL-viewing windows. History list per window with GUI interface. Option for new window per document (TurboGopher interface). On-the-fly font selection. Many common document choices accessible via menubar. Keyword search capability. Hotlist capability -- keep list of interesting documents, add/remove items, list is persistent across sessions. Smart handling of documents too big for single X window -- virtual document pages via inlined hypertext. Interruptable at any time via SIGUSR1 signal. No config or resource file installation required; self-contained executable. Hypertext help. Integration with NCSA Collage and NCSA DTM to broadcast documents into real-time networked workgroup collaboration sessions. Stable! :-)

Future capabilities ...................

Multimedia/MIME. Asynchronous collaboration functionality. (annotations, references, revision control). Hypermedia interface to scientific data. Visual hyperweb/hierarchy layout and navigation. 3D/immersive interface. ???