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역사편집

게리 킬달은 커스텀 플로피 디스크 컨트롤러를 통해 접속되는 슈거트 어소시에이트(Shugart Associates) 8인치 플로피 디스크 드라이브가 장착된 인텔 인텔렉-8 개발 시스템에서 구동할 운영 체제로서 CP/M을 1973~74년에 처음 개발하였다.[1]

하드웨어 모델편집

최소 8비트의 CP/M 시스템은 다음의 부품을 포함하고 있어야 한다:

운영 체제의 구성 요소편집

8비트 버전에서 동작하는 동안 메모리에 로드된 CP/M 운영 체제에는 세 개의 구성 요소가 있었다:

  • 기본 입출력 시스템, 곧 바이오스
  • 기본 디스크 운영체제, 곧 BDOS
  • 콘솔 명령어 프로세서, 곧 CCP

각주편집

  1. Kildall, Gary A. (January 1980). “The History of CP/M, THE EVOLUTION OF AN INDUSTRY: ONE PERSON'S VIEWPOINT” Vol. 5, No. 1, Number 41판. Dr. Dobb's Journal of Computer Calisthenics & Orthodontia. 6–7쪽. 2013년 6월 3일에 확인함. [...] The first commercial licensing of CP/M took place in 1975 with contracts between Digital Systems and Omron of America for use in their intelligent terminal, and with Lawrence Livermore Laboratories where CP/M was used to monitor programs in the Octopus network. Little attention was paid to CP/M for about a year. In my spare time, I worked to improve overall facilities [...] By this time, CP/M had been adapted for four different controllers. [...] In 1976, Glenn Ewing approached me with a problem: Imsai, Incorporated, for whom Glenn consulted, had shipped a large number of disk subsystems with a promise that an operating system would follow. I was somewhat reluctant to adapt CP/M to yet another controller, and thus the notion of a separated Basic I/O System (BIOS) evolved. In principle, the hardware dependent portions of CP/M were concentrated in the BIOS, thus allowing Glenn, or anyone else, to adapt CP/M to the Imsai equipment. Imsai was subsequently licensed to distribute CP/M version 1.3 which eventually evolved into an operating system called IMDOS. [...] 

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