| Developer | Universidade de Coimbra |
|---|---|
| Type | Personal computer |
| Release date | 1982 |
| Discontinued | 1985 |
| Units sold | >500 |
| Operating system | CP/M |
| CPU | Motorola MC6809 |
| Memory | 64 KB RAM |
| Removable storage | Two 5+1⁄4-inch double-density floppy disk drives |
| Connectivity | Serial interface |
| Dimensions | 50 x 36 x 15 cm |
The ENER 1000 was a Portuguese computer released in 1982. [1] [2] [3] [4] [5] It had 64 KB RAM and two 5+1⁄4-inch double-density floppy disk drives. [6] It ran the CP/M operating system.
The machine was developed on Universidade de Coimbra and sold through Enertrónica after 1982. [3] [7] More than 500 units were sold. [8] It came with software for stock management, salary processing, and accounting.
In 1983 the machine was awarded the 1st prize for creativity at Endiel (Encontro Nacional para o Desenvolvimento das Indústrias Elétricas e Eletrónicas). [9]
In 1984, a dozen of ENER 1000 were distributed to some secondary schools. [10] [11] In 1985 the ENER 1000 project ended. [12]
Characteristics
The machine was based on eurocard cards (10 x 16 cm) connected to the motherboard using up to 8 DIN 41612 connectors. The desktop box measured 50 x 36 x 15 cm and could house up to 8 cards. There were two internal 5+1⁄4-inch double-density floppy disk drives (1.6 Mb capacity).
Minimal configuration
The minimal configuration used only 4 slots:
- CPU card with a Motorola MC6809 processor and 2K EPROM
- 64/128 KB DRAM card
- double serial interface card
- floppy disc controller card
The computer could function as a multi-station machine, supporting up to 4 users in 7 terminals.
Expansion modules
Some custom built modules were available for expansion: [1]
- FPU
- 6809 CPU with 4K EPROM, 2K RAM e timer;
- 16K static RAM/ ROM;
- alphanumeric and graphic unit for spectral plots;
- light pen;
- fast ADC for Nuclear Physics applications;
- four 8bit DACs;
- local network node;
- Winchester 5" 1/4 controller;
- CRT and keyboard controller;
- 8088 CPU;
- synchronous serial ports ( HDLC and SDLC);
- 12-bit A/D and D/A converters;
- DMA controller
References
- ^ a b "O Computador Português". Museu Virtual de Informática - Departamento de Sistemas de Informação da Universidade do Minho (in Portuguese). 2015-02-19. Retrieved 2023-02-10.
- ^ Zagalo, Nelson (2013). Videojogos em Portugal: História, Tecnologia e Arte (in Portuguese). FCA. p. 16.
- ^ a b I.G.S. (August 12, 2006). "ENER 1000, o computador pessoal português criado na Universidade de Coimbra". Público (in Portuguese).
- ^ Naves, Filomena (August 12, 2006). "O computador pessoal nasceu há 25 anos". Diário de Notícias (in Portuguese).
- ^ Garcia, Marta. "ENER 1000". The Dots. Retrieved 2022-12-19.
- ^ Pacheco Pereira, José (2008). "O ABRUPTO FEITO PELOS SEUS LEITORES: ESTE É QUE É O COMPUTADOR PORTUGUÊS". ABRUPTO (in Portuguese). Retrieved 17 February 2015.
- ^ "Guia de Visita: OUTROS COMPUTADORES À ÉPOCA". Museu LOAD ZX Spectrum (in Portuguese). Retrieved 2022-12-19.
- ^ Ferreira, Leonídio (August 27, 2018). "João Gabriel Silva: "Universidade de Coimbra é uma das grandes instituições fundadoras do Brasil"". Diário de Notícias (in Portuguese).
- ^ "NOTICIÁRIO NACIONAL - Endiel 83". RTP Arquivos (in European Portuguese). January 23, 1983. Retrieved 2022-12-19.
- ^ A. Figueiredo. "Engenharia em Portugal no Século XX: Engenharia Informática, Informação, Comunicações" (in Portuguese). Academia.edu. Retrieved 17 February 2015.
- ^ "O computador é um importante auxiliar pedagógico" (PDF). Mini Micro's (in Portuguese) (7): 6. February 1985.
- ^ Silva, João (2022). "João Gabriel Silva BIO". UNIVERSITY OF COIMBRA. Retrieved 2022-12-19.