Sistema 700

Sistema 700 was a personal professional microcomputer, introduced by the Brazilian computer company Prológica in 1981.[1][2][3][4]

Sistema 700
ManufacturerPrológica
TypeMicrocomputer
Release date1981 (1981)
Introductory priceUS$399 (equivalent to $1,284 in 2022)
Discontinued1985 (1985)
Operating systemDOS-700 (CP/M 80)
CPU2x Zilog Z80A @ 4.0 MHz
Memory64 KiB RAM
StorageAudio cassette, Floppy disk
DisplayPAL-M video out (built-in RCA connector)

General information

Based on the Zilog Z80A 8-bit, 4MHz microprocessor, it had 64 KiB RAM configuration and two 5-1/4" floppy disk drives with capacity for up to 320 KiB of storage.[5][6][7][8]

Its operating system was DOS-700, a version adapted by Prologica's software engineering department from the CP/M-80.[9][10]

It achieved relative commercial success in financial, database and engineering applications. Due to the compatibility with the popular CP/M system, various applications like Fortran ANS, BASIC compiler, COBOL ANSI 74 compiler, Algol, Pascal, PL/I, MUMPS/M, RPG, Faturol C could be used. Other applications like word processors (WordStar), spreadsheets (CalcStar) and databases (DataStar and dBase II) were also compatible. Your applications could be programmed in BASIC, Cobol-80 and Fortran.[5]

Models

Initial model announced in 1981, but never went into production.[1]

  • Super Sistema 700 (1981)

Final version with graphite-colored cabinet and rounded contours.[1]

Data Storage

Data storage was done in audio cassette.[5] Audio cables were supplied with the computer for connection with a regular tape recorder.[5]

Accessories

P-720 Printer.[11]

Bibliography
  • Micro Computador - Curso Básico. Rio de Janeiro: Rio Gráfica, 1984, v. 1, pp. 49–50.

References
  1. "Prológica em 7 anos vira a maior produtora de micros" (PDF). Jornal do Brasil (in Brazilian Portuguese). 1984-09-26. p. 16.
  2. CARDI, MARILZA CARDI (2002). EVOLUÇÃO DA COMPUTAÇÃO NO BRASIL E SUA RELAÇÃO COM FATOS INTERNACIONAIS (PDF) (in Brazilian Portuguese). FLORIANÓPOLIS, SC.{{cite book}}: CS1 maint: location missing publisher (link)
  3. Velasco, Marcos. "Prológica Sistema 700". MV Museu de Tecnologia e Software (in Brazilian Portuguese). Retrieved 2023-01-06.
  4. "História dos Computadores no Brasil". Museu do Computador Universidade Estadual de Maringá (in Brazilian Portuguese). Retrieved 2023-01-06.
  5. Manual do Sistema 700 Hardware (PDF) (in Brazilian Portuguese). Prológica Microcomputadores.
  6. "Microcomputador Sistema 700". Museu de Tecnologia da Unoeste (in Brazilian Portuguese). 14 January 2016. Retrieved 2023-01-06.
  7. "Sistema 700 advert" (PDF). Micro Sistemas (in Brazilian Portuguese) (8): 2. May 1982.
  8. "Quem somos - Linha do Tempo". IMEDIATA (in Brazilian Portuguese). Retrieved 2023-01-06.
  9. "Microsoft Favored in Ruling". The New York Times. August 17, 1993. pp. Section D, Page 9.
  10. Prológica (2020-08-25). "DOS700 - Sistema 700". Datassette (in Brazilian Portuguese). Retrieved 2023-01-06.
  11. "Adaptação para antiga impressora matricial Prologica P720XT para uso no PC com driver genérico somente texto". Robson Eletronico (in Brazilian Portuguese). 2014-05-21. Retrieved 2023-01-21.
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