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The ENER 1000 was a Portuguese computer released in 1982. It was based on the Zilog Z80A processor. It had 64 KB RAM and two 5+1⁄4-inch double-density floppy disk drives. It ran the CP/M operating system.

The machine was developed on Universidade de Coimbra and sold through Enertrónica after 1982. More than 500 units were sold. It came with software for stock management, salary processing, and accounting.

In January 1983 the machine was announced and received the 1st prize for innovation at the Portuguese Electronics Trade Fair Endiel (Encontro Nacional para o Desenvolvimento das Indústrias Elétricas e Eletrónicas).

In 1984, a dozen of ENER 1000 were distributed to some secondary schools. In 1985 the ENER 1000 project ended and a more evolved version, the UNIC, started.

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 Zilog Z80A processor and 2K EPROM
• 64/128 KB DRAM card
• double serial interface card
• floppy disc controller card

The later version of the computer could function as a multi-station machine, supporting up to 4 users.

Expansion modules

Some custom built modules were available for expansion:

• 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

1. "From Ener to Space". From Ener to Space. DEI – Universidade de Coimbra. 2023. Retrieved 2024-10-19.
2. ^ "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.
3. Zagalo, Nelson (2013). Videojogos em Portugal: História, Tecnologia e Arte (in Portuguese). FCA. p. 16.
4. ^ I.G.S. (August 12, 2006). "ENER 1000, o computador pessoal português criado na Universidade de Coimbra". Público (in Portuguese).
5. Naves, Filomena (August 12, 2006). "O computador pessoal nasceu há 25 anos". Diário de Notícias (in Portuguese).
6. Garcia, Marta. "ENER 1000". The Dots. Retrieved 2022-12-19.
7. Pacheco Pereira, José (2008). "O ABRUPTO FEITO PELOS SEUS LEITORES: ESTE É QUE É O COMPUTADOR PORTUGUÊS". ABRUPTO (in Portuguese). Retrieved 17 February 2015.
8. "Guia de Visita: OUTROS COMPUTADORES À ÉPOCA". Museu LOAD ZX Spectrum (in Portuguese). Retrieved 2022-12-19.
9. Ferreira, Leonídio (August 27, 2018). "João Gabriel Silva: "Universidade de Coimbra é uma das grandes instituições fundadoras do Brasil"". Diário de Notícias (in Portuguese).
10. "NOTICIÁRIO NACIONAL - Endiel 83". RTP Arquivos (in European Portuguese). January 23, 1983. Retrieved 2022-12-19.
11. "Universidade de Parabéns - Prémio de inovação para micro-computador desenvolvido em Coimbra" (PDF). Diário de Coimbra (in Portuguese). January 22, 1983.
12. "Vai surgir no mercado o primeiro microcomputador português" (PDF). Informatics Supplement to Diário de Lisboa (in Portuguese). January 25, 1983.
13. "Isto é um mero começo" (PDF). Diário de Coimbra (in Portuguese). February 15, 1983.
14. A. Figueiredo. "Engenharia em Portugal no Século XX: Engenharia Informática, Informação, Comunicações" (in Portuguese). Academia.edu. Retrieved 17 February 2015.
15. "O computador é um importante auxiliar pedagógico" (PDF). Mini Micro's (in Portuguese) (7): 6. February 1985.
16. Silva, João (2022). "João Gabriel Silva BIO". UNIVERSITY OF COIMBRA. Retrieved 2022-12-19.

• Computer-related introductions in 1982
• Z80-based home computers
• Personal computers
• Portuguese inventions