ENER 1000

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ENER 1000
TypePersonal computer
Release date1982; 40 years ago (1982)
Operating systemCP/M
Memory64 KB RAM
Storagetwo 5+1⁄4-inch double-density floppy disk drives
Dimensions50 x 36 x 15 cm

The ENER 1000 was a Portuguese computer released in 1982.[1][2] It had 64 KB RAM and two 5+1⁄4-inch double-density floppy disk drives.[3] It ran the CP/M operating system.

The machine was developed on Universidade de Coimbra and sold through 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-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:[1]

  • FPU
  • 6809 CPU with 4K EPROM, 2K RAM e timer;
  • 16K static RAM/ROM;
  • alphanumeric and graphic unit for ;
  • 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. ^ a b "Museu Virtual de Informática - Departamento de Sistemas de Informação". Piano.dsi.uminho.pt. Retrieved 17 February 2015.
  2. ^ Grupo Lidel. "ISSUU - Videojogos em Portugal: História, Tecnologia e Arte by Grupo Lidel". Issuu. Retrieved 17 February 2015.
  3. ^ "ABRUPTO". Abrupto.blogspot.pt. Retrieved 17 February 2015.
  4. ^ A. Figueiredo. "Engenharia em Portugal no Século XX: Engenharia Informática, Informação, Comunicações". Academia.edu. Retrieved 17 February 2015.
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