ENER 1000
| Type | Personal computer |
|---|---|
| Release date | 1982 |
| Operating system | CP/M |
| Memory | 16 KB RAM |
| Storage | two 5" 1/4 double density floppy disk drives |
| Dimensions | 50 x 36 x 15 cm |
The ENER 1000 was a Portuguese computer released in 1982.[1][2] It had 16Kb RAM and two 5" 1/4 double density floppy disk drives.[3] It ran the CP/M operating system.
The machine was developed on Universidade de Coimbra and sold through Enertrónica after 1982. Only a few dozen units were sold. It came with software for stock management, salary processing, and accounting. In 1984 a dozen of ENER 1000 were distributed to some secondary schools.[4]
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 double density floppy disk drives (1.6Mb capacity).
Minimal Configuration
The minimal configuration used only 4 slots:
- CPU card with 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 "Museu Virtual de Informática - Departamento de Sistemas de Informação". Piano.dsi.uminho.pt. Retrieved 17 February 2015.
- ^ Grupo Lidel. "ISSUU - Videojogos em Portugal: História, Tecnologia e Arte by Grupo Lidel". Issuu. Retrieved 17 February 2015.
- ^ "ABRUPTO". Abrupto.blogspot.pt. Retrieved 17 February 2015.
- ^ A. Figueiredo. "Engenharia em Portugal no Século XX: Engenharia Informática, Informação, Comunicações". Academia.edu. Retrieved 17 February 2015.