Sistema 700
Manufacturer | Prológica |
---|---|
Type | Microcomputer |
Release date | 1981 |
Introductory price | US$399 (equivalent to $1,136 in 2020) |
Discontinued | 1985 |
Operating system | DOS-700 |
CPU | 2x Zilog Z80A @ 4.0 MHz |
Memory | 64 KiB RAM |
Storage | Audio cassette, Floppy disk |
Display | PAL video out (built-in RCA connector) |
Sistema 700 was a personal professional microcomputer, produced by a Brazilian computer company in early 1980s.[1][2]
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.[3]
Its operating system was DOS-700, a version adapted by Prologica's software engineering department from the CP/M-80.[4]
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.[3]
Models[]
- Sistema 700 (1981 - vapourware)
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.[3]
Audio cables were supplied with the computer for connection with a regular tape recorder.[3]
Accessories[]
P-720 Printer.[5]
Bibliography[]
- Micro Computador - Curso Básico. Rio de Janeiro: Rio Gráfica, 1984, v. 1, pp. 49–50.
References[]
- ^ a b c Jornal do Brasil (1984-09-26). "Prológica em 7 anos vira a maior produtora de micros" (PDF) (in Portuguese). Retrieved 2021-09-23.
- ^ Marilza de Lourdes Cardi (2002-01-01). "Evolução da Computação no Brasil e sua Relação Com Fatos Internacionais" (PDF) (in Portuguese). Retrieved 2021-09-23.
- ^ a b c d Editele. "Sistema 700 Manual Hardware" (PDF) (in Portuguese). Retrieved 2021-09-24.
- ^ "Microsoft Favored in Ruling". Archived from the original on 2018-01-18. Retrieved 2021-09-24.
- ^ Prológica (1985-07-05). "Geração Prológica" (PDF) (in Portuguese). Retrieved 2021-09-23.
- Computing stubs
- Computer hardware stubs
- Computer-related introductions in 1981