Programa Educativo de Colegios Secundarios

PECOS
Also known asPrograma Educativo de COlegios Secundarios
DeveloperAssiel
ManufacturerAssiel
TypeMicrocomputer
Release date1983; 41 years ago (1983)
Units shippedaround 1500
Operating systemCP/M
CPUZilog Z80 at 4 MHz
Memory64 KB or 128 KB
Removable storagefloppy disk
GraphicsTMS9928A
SoundSN76489

The PECOS (Programa Educativo de COlegios Secundarios) was an Argentine computer designed and manufactured by Assiel (later renamed Aswork) for educational purposes. Launched in 1983, around 1500 units were produced for schools in Buenos Aires.[1][2][3] It became a key development in Argentina's computing industry alongside the Alpha and Sincorp SBX.[1]

Assiel was the first fully integrated computer manufacturer in Argentina, handling the entire process from design to assembly, unlike other companies that assembled imported parts.

The machine was created based on the article Build Your Own Z80 Computer by Steve Ciarcia in Byte magazine.[2]

The PECOS was primarily sold to educational institutions, which were also using Commodore and MSX machines. PECOS computers supported educational networks where teachers controlled student activities via terminal networks. Schools typically installed networks of up to 10 PECOS units, sharing floppy drives and printers, with software developed by Assiel.[1]

Technical details

The PECOS was available in two models: PECOS, a 64 KB RAM version for students; and PRICK, a 128 KB RAM version for teachers.[2]

Powered by a Zilog Z80 microprocessor running at 4 MHz,[2] the system featured an SN76489 audio chip and TMS9928A video controller.[1] The PECOS featured an external power supply, expansion module connectors, and supported optional accessories such as RF modulators and diskette drives.[2]

The operating system used was CP/M, and software included a text editor, spreadsheet, and Micro Logo in Spanish. It also supported multiple programming languages, such as compiled BASIC, Fortran 77, COBOL, and Pascal.[2]

References

  1. ^ a b c d Zanni, Jose (2024-09-06). "PECOS: galería de fotos". Retroinvaders. Retrieved 2024-10-08.
  2. ^ a b c d e f Angie; Ricardo. "Pecos". Compuclasico. Retrieved 2024-10-08.
  3. ^ Mandracchia, Roberto Adrián (2022-05-10). "PECOS, una historia personal". Home Computer (in Spanish). Retrieved 2024-10-08.

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