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The FLEX single-tasking operating system was developed by Technical Systems Consultants (TSC) of West Lafayette, Indiana, for the Motorola 6800 in 1976. The original version was for 8" floppy disks and the (smaller) version for 5.25" floppies was called mini-Flex. It was also later ported to the Motorola 6809; that version was called Flex9. All versions were text-based and intended for use on display devices ranging from printing terminals like the Teletype Model 33 ASR to smart terminals. While no graphic displays were supported by TSC software, some hardware manufacturers supported elementary graphics and pointing devices.

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  • Flex (Betriebssystem)
  • FLEX (operating system)
  • FLEX
  • FLEX
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  • The FLEX single-tasking operating system was developed by Technical Systems Consultants (TSC) of West Lafayette, Indiana, for the Motorola 6800 in 1976. The original version was for 8" floppy disks and the (smaller) version for 5.25" floppies was called mini-Flex. It was also later ported to the Motorola 6809; that version was called Flex9. All versions were text-based and intended for use on display devices ranging from printing terminals like the Teletype Model 33 ASR to smart terminals. While no graphic displays were supported by TSC software, some hardware manufacturers supported elementary graphics and pointing devices.
  • Das Betriebssystem FLEX wurde in den 1970er Jahren von dem Unternehmen Technical Systems Consultants, Inc. (TSC) für die Motorola-Prozessoren 6800 und 6809 entwickelt. Es ist ein diskettenbasiertes Betriebssystem, für das es recht viele Programmiersprachen gab. Es gilt als eines der erfolgreichsten Betriebssysteme aus der Frühzeit des Personal Computers. FLEX wurde zu UniFLEX – einem Unix-ähnlichen System – weiterentwickelt. Etliche der TSC-Computersprachen wurden auf UniFLEX portiert. UniFLEX ist aber praktisch nie verkauft worden.
  • FLEX é um sistema operativo (no Brasil, sistema operacional) monotarefa, desenvolvido em 1976 pela TSC (Technical Systems Consultants), de West Lafayette (Indiana/EUA), para computadores baseados no microprocessador Motorola 6800. Todas as versões eram baseadas em texto e projetadas para uso em dispositivos que variavam desde terminais de impressão (como o teletipo Model 33 ASR) até terminais inteligentes. Embora o sistema operativo da TSC não suportasse telas gráficas, alguns fabricantes de hardware disponibilizavam dispositivos de apontamento e gráficos elementares.
  • FLEX — однозадачная операционная система, разработанная в 1976 году для микропроцессоров Motorola 6800 компанией TSC из Западного Лафайетта (штат Индиана). Изначально была создана версия для 8-дюймовых флоппи-дисков и версия для 5,25-дюймовых флоппи-дисков, называвшаяся mini-Flex. Позже она была портирована на микропроцессор Motorola 6809 под названием Flex9. Все версии имели текстовый интерфейс и предназначались для использования на устройствах вывода от печатающих терминалов вроде ASR-33 до интеллектуальных терминалов. Графические терминалы компанией не поддерживались программным обеспечением TSC, хотя некоторые производители обеспечивали поддержку элементарной графики и указательных устройств.
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  • Das Betriebssystem FLEX wurde in den 1970er Jahren von dem Unternehmen Technical Systems Consultants, Inc. (TSC) für die Motorola-Prozessoren 6800 und 6809 entwickelt. Es ist ein diskettenbasiertes Betriebssystem, für das es recht viele Programmiersprachen gab. Es gilt als eines der erfolgreichsten Betriebssysteme aus der Frühzeit des Personal Computers. 1976 erschien die Version MiniFLEX 1.0 für einen Heimcomputer-Bausatz von SouthWest Technical Products (SWTP) in Verbindung mit 5¼-Zoll-Diskettenlaufwerken von Shugart Associates, sie wurde wenig später durch FLEX 1.0 ersetzt. Ebenfalls unterstützt wurden 8-Zoll-Diskettenlaufwerke. Die Version für den 6809 nannte sich FLEX 9. In Deutschland wurde das Betriebssystem von der Firma Fischer Software Stuttgart zur Entwicklung von Apotheken-Computer-Software eingesetzt. FLEX wurde von der Firma Compusense Ltd. als Betriebssystem für den Dragon 64 Heimcomputer angeboten. FLEX wurde zu UniFLEX – einem Unix-ähnlichen System – weiterentwickelt. Etliche der TSC-Computersprachen wurden auf UniFLEX portiert. UniFLEX ist aber praktisch nie verkauft worden.
  • The FLEX single-tasking operating system was developed by Technical Systems Consultants (TSC) of West Lafayette, Indiana, for the Motorola 6800 in 1976. The original version was for 8" floppy disks and the (smaller) version for 5.25" floppies was called mini-Flex. It was also later ported to the Motorola 6809; that version was called Flex9. All versions were text-based and intended for use on display devices ranging from printing terminals like the Teletype Model 33 ASR to smart terminals. While no graphic displays were supported by TSC software, some hardware manufacturers supported elementary graphics and pointing devices. It was a disk-based operating system, using 256-byte sectors on soft-sectored floppies; the disk structure used linkage bytes in each sector to indicate the next sector in a file or free list. The directory structure was much simplified as a result. TSC (and others) provided several programming languages including BASIC in two flavors (standard and extended) and a tokenizing version of extended BASIC called Pre-compiled BASIC, FORTH, C, FORTRAN, and PASCAL. TSC also wrote a version of FLEX, Smoke Signal DOS, for the California hardware manufacturer Smoke Signal Broadcasting; this version used forward and back linkage bytes in each sector which increased disk reliability at the expense of compatibility and speed. Later, TSC introduced the multitasking, multi-user, Unix-like UniFLEX operating system, which required DMA disk controllers, 8" disk, and so sold in only small numbers. Several of the TSC computer languages were ported to UniFLEX. During the early 1980s, FLEX was offered by Compusense Ltd as an operating system for the 6809-based Dragon 64 home computer.
  • FLEX é um sistema operativo (no Brasil, sistema operacional) monotarefa, desenvolvido em 1976 pela TSC (Technical Systems Consultants), de West Lafayette (Indiana/EUA), para computadores baseados no microprocessador Motorola 6800. A versão original era disponibilizada em disquetes de 8" e a versão menor, em disquetes de 5,25", denominada Mini-Flex. Posteriormente, o Mini-Flex foi portado para computadores baseados no Motorola 6809, recebendo esta nova versão o nome de Flex9. A última geração do TSC FLEX foi o UniFLex, sistema este multitarefa, semelhante ao Unix e que exigia controladoras de disco DMA de 8". Em razão disso - e não obstante diversas linguagens de programação terem sido portadas para o UniFlex -, este não foi um sucesso de vendas. Todas as versões eram baseadas em texto e projetadas para uso em dispositivos que variavam desde terminais de impressão (como o teletipo Model 33 ASR) até terminais inteligentes. Embora o sistema operativo da TSC não suportasse telas gráficas, alguns fabricantes de hardware disponibilizavam dispositivos de apontamento e gráficos elementares. Como sistema operativo de disco, usava setores de 256 bytes mediante setorização por software. A estrutura do disco empregava bytes de ligação em cada setor para indicar o próximo setor em um arquivo ou lista de setores livres. Como resultado, a estrutura do diretório era bastante simplificada. Uma outra versão de Flex, chamada "Smoke Signal DOS", desenvolvida pela TSC especialmente para o fabricante de hardware Smoke Signal Broadcasting, empregava bytes de ligação para setores anteriores e posteriores, aumentando a confiabilidade do disco à custa de velocidade e compatibilidade. A TSC, bem como outras empresas, forneciam diversas linguagens de programação para executar sob Flex, inclusive BASIC em duas versões (básico e estendido) e uma versão "tokenizada" do BASIC Estendido, chamada "BASIC Pré-Compilado", além de Forth, C, Fortran e Pascal. No início da década de 1980, o Flex foi oferecido pela empresa britânica Compusense Ltd. como um sistema operativo para os computadores Dragon 32 e Dragon 64 da Dragon Data, equipamentos quase que 100% compatíveis com a linha TRS-80 Color Computer. Atualmente, é possível encontrar alguns emuladores de Flex, entre eles: * Flexem Eurocom II (disponível para Linux, Windows 95, Windows 98, Windows NT e Windows 2000) * SWTPC 6800/6809 FLEX (disponível para Windows 95) * ReFlex (disponível para Windows 95 e Amiga)
  • FLEX — однозадачная операционная система, разработанная в 1976 году для микропроцессоров Motorola 6800 компанией TSC из Западного Лафайетта (штат Индиана). Изначально была создана версия для 8-дюймовых флоппи-дисков и версия для 5,25-дюймовых флоппи-дисков, называвшаяся mini-Flex. Позже она была портирована на микропроцессор Motorola 6809 под названием Flex9. Все версии имели текстовый интерфейс и предназначались для использования на устройствах вывода от печатающих терминалов вроде ASR-33 до интеллектуальных терминалов. Графические терминалы компанией не поддерживались программным обеспечением TSC, хотя некоторые производители обеспечивали поддержку элементарной графики и указательных устройств. FLEX была операционной системой с памятью на дисках. Использовались 256-байтные секторы с программной разметкой секторов. TSC и другие компании предлагали несколько языков программирования, включая два варианта Basic (стандартный и расширенный), примечательную версию расширенного Basic называвшуюся Pre-compiled Basic, Forth, C, Fortran и Pascal. TSC также разработала версию FLEX Smoke Signal DOS для калифорнийского производителя аппаратного обеспечения Smoke Signal Broadcasting. Позже TSC выпустила многозадачную многопользовательскую Unix-подобную операционную систему uniFlex, которая требовала DMA-контроллер и 8-дюймовый диск, вследствие чего была продана в маленьком количестве. Несколько компиляторов TSC были портированы на uniFlex. В начале 1980-х FLEX предлагалась компанией CompuSense в качестве операционной системы для бытового компьютера Dragon 64 на основе микропроцессора Motorola 6809.
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