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Knowledge Base›Software areas and programs of the MIT CADR and Symbolics Genera

Software areas and programs of the MIT CADR and Symbolics Genera

The two systems are complete programming environments rather than operating systems with a small, sharply separated application layer. A listener, editor, mail reader, debugger, compiler, file browser, window manager, server, and hardware diagnostic can all coexist in one Lisp world and call one another directly. For that reason, a useful "application list" must include more than the icons or menu entries that would define an application list on a later workstation.

This page is the cross-system map. The release-bounded detailed catalogs are:

The application dossier coverage matrix turns these exhaustive release catalogs into a finite 60-topic research queue and links each completed editor-depth study. Its companion CLIM-use audit identifies the actual interface substrate and any CLIM relationship for every one of those sixty topics, including explicit negative findings where the software instead uses TV, EINE/ZWEI, Dynamic Windows, streams, or a noninteractive service boundary.

The CADR System 46 evidence is public. The Genera archive, world, source, compiled systems, and extracted documentation are licensed local inputs; only evidence-only names, counts, hashes, and original analysis from them are tracked here.

Those pages carry the exhaustive name lists, evidence status, and release-specific qualifications. This comparison deliberately does not turn a source directory, Lisp package, library, test case, or individual command into an "application" merely because it has a name.

The visible center of each environment

These are the principal interactive roles a new user encounters. A dash means that the inspected evidence did not establish a close counterpart, not that no one could write one.

Role MIT CADR / LM-3 Symbolics Genera 8.5
Interactive Lisp Lisp Listener Dynamic Lisp Listener with the Command Processor
Text and program editing EINE in a separate late-1977 source corpus; ZWEI as the System 46/303 editing substrate and Zmacs as the later editor application ZWEI as the substrate and Zmacs, selected as Editor, as the application
Mail Zmail, shown as Mail in the System 303 menu Zmail and its distinct composition modes, plus the background Mailer and its log interface
Live user-to-user messages System 46 QSend and maintained System 303 Converse Converse plus central Notifications
Object browsing Inspector Inspector and Presentation Inspector
Errors and debugging Error Handler/Window Debugger, Trace, Stepper, breakpoints, and call analysis, CADR Debugger Debugger/Display Debugger, Trace, Stepper, Breakpoint and Callers tools, and monitoring tools
System observation Peek and LMETER, PTRAC, and Meter Peek, Meter and Metering Interface, notifications, and service-log activities
Files and directories Pathnames, QFILE, Local-File, LMFILE, and file servers, directory editor within ZWEI, file-system maintenance, disk-label tools Host-selected access paths, QFILE, NFILE, NFS, LMFS, File/Directory/NFS commands, and the File Server frame, Namespace Editor, and media-present version-control tools
On-line documentation Source-integrated Help and editor documentation Document Examiner, context Help, extended Help, and application command documentation
Remote terminal SUPDUP and Telnet terminal implementations Terminal for Telnet and related network terminal use
Window/layout tools System Menu, Screen Editor, and split-screen layouts System Menu and activities, the retained Screen Editor and separate Frame-Up designer, activity selector, and window commands
Raster graphics authoring FED Font Editor generations, PAINT/NPAINT, indexed color and experiments, and public picture, scan, sprite, pattern, and SUDS assets Bitmap-derived Font Editor, Bitmap and Stipple Editors, Graphic Editor, Color Editor and Palette, plus image objects, formats, drawing, and FrameThrower
Printing and document production Hardcopy, Press, XGP, DPLT, and Versatec, Bolio, and formatting, spelling, and text-production utilities Hardcopy, Print, and PostScript, Sage and text-production utilities, and Concordia structural authoring, Page Previewer, and book design

This is a role map, not a lineage claim. Similar labels can hide substantial implementation changes. The detailed pages identify when Genera retained an MIT concept, replaced it, or added a new subsystem.

Software-domain map

Area MIT CADR / LM-3 examples Symbolics Genera examples
Lisp development Listener, runtime and compiler, package system, Flavors and the earlier entity/class facility, ZWEI/Zmacs, source comparison, system builder and patch tools Dynamic Listener and Command Processor, runtime/compiler/development release, CLOS, New Flavors, and the Flavor Examiner, Zmacs, resident SRCCOM and media-present Compare/Merge and Version Control, Compiler Tools and syntax infrastructure, system construction and distribution
Compiled objects QFASL, QFASL-REL, and UNFASL L-BIN and UNBIN; separate BIN, Zmail KBIN, and embedding/RPC support
Other languages and representations Microassembler and machine diagnostics; PL/I editing mode; Lisp Machine Lisp Symbolics C, FORTRAN, and Pascal, CLIM 2 and its demonstrations/tutorial, Compiler Tools, grammar/lexer packages, and Syntax Editor support, Conversion Tools, the CLOE external delivery environment, and RPC/embedding tools
Knowledge and data systems Matrix, rational, complex, and infix facilities, core Lisp data, Inspector, experimental AMORD/LMTMS source records, and historical Macsyma integration evidence Common Lisp numeric and matrix facilities, Joshua and Jericho, Statice, Macsyma 421, B-tree support, and namespace design tools
Communication Chaosnet, Ethernet, SUPDUP/Telnet, Converse, Zmail, file service Chaosnet and TCP/IP, Terminal, Converse, Zmail/Mailer, NFS, DNS, CL-HTTP and its client/proxy systems, RPC, and X remote screens
Host and coprocessor integration No matching System 46 subsystem; maintained System 303 declares a three-module Unix-Interface, but its implementation files are absent Ivory, FEP, Life Support, and the Open Genera VLM, plus RPC/XDR, Embedding and UX Support, MacIvory, Keyboard Control, HyperCard-MacIvory, Mac-Dex, and DBFS Utilities
Storage and operations Local and remote file systems and file servers, DLEDIT, pack management, checkout, and salvage, site/login data and later Site Editor, later LMI Tape/TFrame systems, cold load and load-band construction File-service architecture and operations, namespace/site administration, FSEdit, LMFS maintenance, and salvage, tape streams, formats, transports, FEP-Tape, and administration, world building, patching, and distribution, and host/VLM integration
User interface and media Window system, menus, fonts, FED generations, public images and visual assets, color support, hardcopy, PRESS, and the TV antecedents to presentation-based interaction Dynamic Windows and presentations, CLIM 2, fonts, raster and structured-graphics editing tools, image objects/formats and FrameThrower, color systems, hardcopy, Print, and PostScript
Monitoring and repair Peek, meter, trace, Error Handler, CADR debugger, diagnostics, background server recovery, and disk/file-system repair Peek, metering, trace, Debugger, Inspector, Flavor Examiner, service logs and operations programs, FSEdit and storage maintenance, and printer maintenance
Demonstrations and examples MUNCH, LEXIPHAGE, DOCTOR, Spacewar, and the complete CADR HACKS/display/sound/novelty suite HACKS, CLIM demonstrations and tutorial programs, and the bounded Core, Joshua, Statice, Color, and CL-HTTP example collections

What "complete" means here

The catalog is complete for the identified preserved evidence, not for every program ever written for either machine family. It records the following evidence layers separately:

Evidence layer What it establishes
Distribution or artifact present The named material occurs on the inspected release media or load-band support tree.
Source present Source contains a distinct user program, server, tool, diagnostic, or demonstration with an identifiable entry point.
Declared or known The system registry has a declaration for it. This does not mean it is loaded.
Loaded The exact inspected world reports the system resident. This does not necessarily make it interactive.
Registered activity The window/activity machinery knows how to select or create it.
Select key The exact world or source binds it in the system-key/SELECT table.
System or Create menu It appears in one deliberately curated menu subset.
Command or function entry It is an interactive tool entered from the Listener, Command Processor, editor, or a Lisp call rather than a top-level menu.
Embedded mode or subapplication It is a separately usable facility inside a larger program, such as Dired within the editor.
Runtime observed The museum directly exercised or displayed it with the identified load band/world and emulator/VLM.
Documented product A contemporary manual or installed documentation set describes it, although the inspected code or runtime state might be optional or absent.

The detailed lists do not collapse these layers into "available." In particular, source presence does not prove that a program is loaded, configured, working, or supported in the inspected world. An installed Genera .system record does not prove that its product is resident. A menu entry proves an entry point, not every feature behind it. Conversely, menu enumeration undercounts by design: both systems provide interactive programs that do not occupy their short Programs columns.

Aliases are retained but counted as one user-facing concept when they identify the same implementation: for example, Edit, Editor, and Zmacs, or Mail and Zmail. Distinct implementation generations such as EINE and Zmacs remain distinct.

The census excludes individual Lisp functions, Command Processor commands, editor commands, packages, flavors/classes, low-level source modules, data files, fonts, tests, and incidental examples embedded in documentation. Those have their own inventories where useful. It includes libraries and infrastructure only when they define a historically meaningful software area needed to understand what the environment could do.

Runtime cross-checks

The museum's isolated harnesses provide two narrow runtime anchors:

  • A fresh System 303 session's System-Help table displayed five bindings: Top-L for LISP(Edit), E for Editor, I for Inspector, L for Lisp, and P for Peek. Its Programs menu separately displayed Lisp, Edit, Inspect, Trace, Peek, Mail, and Emergency Break. The difference demonstrates why neither registry is sufficient alone. The earlier menu capture and hashes are recorded in the CADR harness report.
  • A direct evaluation of the Select-key table in a fresh copy of the inspected Genera 8.5 world returned twelve bindings: = Select Key Selector, C Converse, D Document Examiner, E Editor, I Inspector, L Lisp, M Zmail, N Notifications, P Peek, Q Frame-Up, T Terminal, and X Flavor Examiner. The F binding for File System Maintenance printed in the Genera User's Guide was absent from this exact world. Its System Menu separately displayed Distribute Systems, Document Examiner, Editor, Emergency Break, Frame-Up, Hardcopy, Inspect, Lisp, Namespace Editor, Trace, and Zmail.
  • The same world's live activity registry contained nineteen names: Converse, Distribute Systems, Document Examiner, Editor, File Server, Flavor Examiner, Frame-Up, Inspector, Keyboard Control, Lisp, Mail, Namespace Editor, Notifications, Peek, Restore Distribution, Select Key Selector, Terminal, Zmacs, and Zmail. Its Create registry contained Terminal, Lisp, Peek, Inspect, Edit, Frame-Up, Distribute Systems, Document Examiner, Namespace Editor, and the generic Any choice. These tables again disagree in useful ways with both the short menu and the documentation-derived union.
  • A second fresh, read-only runtime query found 98 System Construction Tool records with a non-null loaded version in this world: 26 had numbered versions and 72 used :NEWEST. Their complete exact-name roster is retained in the Genera detailed catalog.
  • The same Genera world's top-level Help Commands response displayed command areas ranging from activities, editing, files, and Lisp through networking, printing, site administration, tape administration, and world building. This is a command taxonomy, not an application registry.

The exact-table query captures remain local. Separate later runtime studies selected one sparse menu state from each system for capture-specific publication review and the corresponding application dossiers. Their portable identities and shutdown evidence are recorded in the curated screenshot catalogs. The earlier Genera System Menu and command-category capture is described in the Genera harness report.

Neither menu is the whole software catalog. Both systems also contain facilities entered by commands, Select keys, functions, subsystem menus, server processes, or explicit system loading.

Sources and verification

Last verified: 2026-07-18.

Try “search window system”, “open genera”, or “help”.