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In 1988, Sassenrath left
Silicon Valley for the mountains of Ukiah valley, 2 hours north of San Francisco. From there he founded multimedia technology companies such as Pantaray, American Multimedia, and VideoStream. He also implemented the
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In 1998, Sassenrath founded REBOL Technologies, a company he still runs. The company has released several versions of REBOL and produced additional products such as REBOL/View, REBOL/Command, REBOL/SDK, and REBOL/IOS.
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This design gave the Amiga OS a great extensibility and flexibility within the limited memory capacity of computers in the 1980s. Sassenrath later noted that the design came as a necessity of trying to integrate into
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After the release of the Amiga in 1985, Sassenrath left
Commodore-Amiga to pursue new programming language design ideas that he had been contemplating since his university days.
875:, and boating. He volunteers with the Television Improvement Association, a community organization that brings free, over-the-air television broadcasts into the Ukiah area.
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While at HP Sassenrath became interested in minimizing the high complexity found in most operating systems of that time and set out to formulate his own concepts of a
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computer language, REBOL/IOS collaboration environment, the
Safeworlds AltME private messaging system, and other products. Carl was a Principal Engineer at
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693:(ATG) to invent the next generation of operating systems. He was part of the Aquarius project, a quad-core CPU project (simulated on Apple's own
675:, and others. This dynamic modular method also allowed hundreds of additional modules to be added by external developers over the years.
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and others provided
Sassenrath with a wealth of resources and knowledge that helped shape his views of computing languages and systems.
800:, allowing users to create new relationships between symbols and their meanings. By doing so, he attempts to merge the concepts of
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involved in research and development related to petroleum refining, paper production, and air pollution control systems.
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design. This was a novel approach for 1983 when other personal computer operating systems were single tasking such as
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language had just been introduced, but
Sassenrath, along with many other Apple researchers, preferred the more pure
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The Amiga multitasking kernel was also one of the first to implement a microkernel OS methodology based on a
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and behavioral biology. His uncle, Dr. Julius
Sassenrath, headed the educational psychology department at
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In late 1981 and early 1982, Sassenrath took an academic leave to do atmospheric physics research for
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486:-based OS. He proposed them to HP, but found the large company complacent to the "smaller OS" ideas.
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Carl
Sassenrath was born in 1957 to Charles and Carolyn Sassenrath in California. His father was a
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At HP, Sassenrath was involved with and influenced by a range of HP language projects including
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or has been extensively edited by the subject or by someone connected to the subject
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with dynamically loaded libraries and devices as optional modules around the core.
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In 1996, after watching the growth and development of programming languages like
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422:, and his aunt, Dr. Ethel Sassenrath, was one of the original researchers of
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XMP-48) that was intended to become a 3D-based successor to the
Macintosh.
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Later in 1982, impressed by the new computing ideas being published from
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dozens of internal libraries and devices including graphics, sound,
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public broadcasting television station. A year later he became a
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Sassenrath describes REBOL as a balance between the concepts of
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Amiga Team, 1985 (Sassenrath in plaid shirt to right of sign)
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During his final year at the university, Sassenrath joined
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and director for news, commercials, and local programming.
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As a sophisticated computer for its day (Amiga used 28
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operating system kernel, and he is the designer of the
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he was asked to design a new operating system for the
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in product development. He retired in
November 2023.
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Sassenrath implemented REBOL V3.0 and released it to
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language. Working at ATG with computing legends like
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1075:, Obligement, May 2007, accessed October 10, 2013
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447:'s Computer Systems Division as a member of the
343:In the late 1960s his family relocated from the
87:policy. There may be relevant discussion on the
375:affiliate then) and worked his way up to being
398:). During his studies he became interested in
83:It may need editing to conform to Knowledge's
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471:team and later part of the HPE kernel group.
923:; Olivier Auverlot; Éditions Eyrolles; 2001
571:, and a variety of experimental languages.
428:California National Primate Research Center
53:Learn how and when to remove these messages
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745:, managed the software OS development for
463:for a new type of control language called
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783:relative expression-based object language
187:Learn how and when to remove this message
169:Learn how and when to remove this message
107:Learn how and when to remove this message
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132:This article includes a list of general
958:Amiga ROM Kernel Reference Manual: Exec
885:Amiga ROM Kernel Reference Manual: Exec
459:computers. His task was to implement a
328:until his retirement in November 2023.
1293:University of California, Davis alumni
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382:In 1980 Sassenrath graduated from the
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927:Computing Encyclopedia, Vol 5: People
847:Since 2010, Sassenrath had worked at
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686:In 1986, Sassenrath was recruited to
1055:TIA - The TV Improvement Association
933:The REBOL IOS Distributed Filesystem
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59:
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917:; Ralph Roberts; Hungry Minds; 2000
909:Inside the REBOL Scripting Language
899:; Tim Holloway; Byte Magazine; 1991
891:Guru's Guide to the Commodore Amiga
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478:Carl Sassenrath at South Pole, 1982
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887:; Carl Sassenrath; Commodore; 1986
618:), Sassenrath decided to create a
505:methods of distributed computing.
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138:it lacks sufficient corresponding
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495:Amundsen–Scott South Pole Station
316:in 1985 with the creation of the
34:This article has multiple issues.
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587:In 1983, Carl Sassenrath joined
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384:University of California, Davis
234:University of California, Davis
42:or discuss these issues on the
1273:Programming language designers
1073:Interview with Carl Sassenrath
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897:The Object Oriented Amiga Exec
1:
1288:People from Ukiah, California
1068:- Lightweight document markup
614:channels along with multiple
591:, a small startup company in
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247:Programming language designer
1268:American computer scientists
941:; Carl Sassenrath; 2000–2005
935:; Dr. Dobb's Journal; 9/2002
911:; Dr. Dobb's Journal; 6/2000
597:Manager of Operating Systems
7:
854:
837:https://github.com/rebol/r3
649:inter-process communication
491:National Science Foundation
449:Multi-Programming Executive
221:1957 (age 66–67)
16:American computer scientist
10:
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939:The REBOL/Core Users Guide
528:workstation borrowed from
1298:Engineers from California
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739:Logo programming language
691:Advanced Technology Group
499:graphical user interfaces
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905:; Web Techniques; 9/1999
700:During that period, the
665:graphical user interface
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929:; Smart Computing; 2002
893:; Carl Sassenrath; 1989
873:quantum electrodynamics
842:
820:methodologies, such as
620:preemptive multitasking
256:Commodore International
153:more precise citations.
835:on December 12, 2012:
708:implementation of the
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520:. The project, called
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392:electrical engineering
345:San Francisco Bay Area
787:distributed computing
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542:distributed computing
503:remote procedure call
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408:programming languages
347:to the small town of
300:) is an architect of
85:neutral point of view
1303:Amateur radio people
1062:Obligement, May 2007
871:, video production,
859:Sassenrath lives in
653:Exec (for executive)
589:Amiga Computer, Inc.
1155:Petro Tyschtschenko
749:, one of the first
732:Sassenrath Research
534:Stanford University
404:parallel processing
1283:Kernel programmers
1071:Jeudy, SĂ©bastien,
1038:Personal home page
987:"LinkedIn profile"
969:"LinkedIn profile"
761:REBOL Technologies
585:
480:
377:technical director
349:Eureka, California
314:personal computers
306:computer languages
244:Systems programmer
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1118:Original creators
921:REBOL Programming
915:REBOL for Dummies
530:Andy Bechtolsheim
455:design group for
400:operating systems
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526:Sun Microsystems
396:computer science
224:California, U.S.
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412:neurophysiology
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294:Carl Sassenrath
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1278:Amiga people
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1051:at REBOL.com
1045:at REBOL.com
1025:Amiga portal
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416:neuroscience
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159:January 2017
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97:October 2012
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43:
37:
36:Please help
33:
1258:1957 births
1232:Matt Bielby
1225:Journalists
1140:Dave Needle
1125:Dave Haynie
1049:Carl's Blog
722:Dan Ingalls
669:floppy disk
627:microkernel
484:microkernel
453:file system
252:Employer(s)
151:introducing
1252:Categories
1216:Tim Wright
1181:Tim Follin
1164:Developers
1145:Dave Morse
903:REBOL Bots
865:California
849:Roku, Inc.
814:dialecting
544:concepts.
540:and early
538:hyperlinks
510:Xerox PARC
332:Background
326:Roku, Inc.
298:California
268:Roku, Inc.
260:Apple Inc.
134:references
39:improve it
1176:Fred Fish
1135:Jay Miner
1060:Interview
798:symbolism
710:Smalltalk
642:real-time
635:Macintosh
625:within a
557:Smalltalk
390:in EECS (
365:cameraman
89:talk page
45:talk page
1186:Jon Hare
1130:RJ Mical
991:LinkedIn
973:LinkedIn
855:Personal
810:metadata
741:for the
714:Alan Kay
637:(1984).
516:-driven
465:Outqueue
461:compiler
420:UC Davis
1066:MakeDoc
794:context
457:HP 3000
426:at the
386:with a
278:AmigaOS
147:improve
1112:people
833:GitHub
808:, and
781:, the
775:Python
773:, and
751:CD-ROM
631:MS-DOS
553:Pascal
522:Probus
469:kernel
451:(MPE)
434:Career
410:, and
136:, but
75:is an
1110:Amiga
946:Notes
861:Ukiah
779:REBOL
743:Amiga
605:Amiga
601:Amiga
595:. As
575:Amiga
565:Forth
514:mouse
322:REBOL
286:REBOL
843:Roku
806:data
802:code
796:and
771:Perl
767:Java
747:CDTV
695:Cray
561:Lisp
518:GUIs
501:and
394:and
388:B.S.
369:KVIQ
367:for
359:, a
357:KEET
304:and
282:CDTV
218:Born
822:XML
753:TV
702:C++
661:ROM
612:DMA
569:SPL
549:Ada
493:at
424:THC
373:ABC
361:PBS
312:to
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