ENER 1000
The ENER 1000 was a Portuguese computer released in 1982.
It had 64 KB RAM and two -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. 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.

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 -inch double-density floppy disk drives (1.6 Mb capacity).

Minimal Configuration
The minimal configuration used only 4 slots:
CPU card with Z80 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:
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

Products introduced in 1982
6809-based home computers
Personal computers
Portuguese inventions