ENER 1000

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