CP-300 explained

Manufacturer:Prológica
Type:Home computer
Os:BASIC Level II (TRS-80 compatible)
DOS-500 (TRS-DOS compatible)
Processor:Zilog Z80A
Memory:64 KB RAM 16 KB ROM
Display:PAL-M or monitor video out; 32x16, 64x16, 128x48
Sound:Beeper
Compatibility:TRS-80 Model III
CP 300
Memory Card:Cassette tape, floppy disk (optional)
Cpuspeed:2.0 MHz

CP 300 was a personal microcomputer produced by Prológica, a computer company located in Brazil, and introduced in 1983.[1] [2] [3]

General information

It was compatible in software and hardware with the American TRS-80 Model III, and could be considered a domestic and cheaper version of the CP 500, since it was supplied with only one cabinet containing the CPU and a chiclet keyboard. The power supply was external to the cabinet.[4]

Technical details

The CP 300 had 16 KB of ROM and 64 KB of RAM. Its keyboard had 54 keys with auto-repeat function, including two red keys that, when pressed together, forced a reset of the machine.

The display was limited to two text modes of 32x16 or 64x16 characters, and a semigraphic mode of 128x48 pixels.

Sound was generated by an internal cabinet speaker with a volume control at the back.

Expansion capability was limited to a connector located at the back of the machine. In terms of connectivity, it had a TV output (RF modulator, channel 3), a monitor output, and a cassette interface.

Audio cables were supplied with the computer for connection to a regular tape recorder, that could be operated at 500/1500 baud with remote relay activation.

Additionally, it was possible to connect up to four external 5.25" floppy drives, allowing the machine to run DOS-500 (TRS-DOS compatible).

Accessories

Bibliography

Notes and References

  1. Book: CARDI, MARILZA CARDI . EVOLUÇÃO DA COMPUTAÇÃO NO BRASIL E SUA RELAÇÃO COM FATOS INTERNACIONAIS . 2002 . FLORIANÓPOLIS, SC . pt-br.
  2. Web site: CP 300 . 2022-12-19 . 1000 BiT.
  3. Web site: Velasco . Marcos . Prológica CP-300 . 2023-01-06 . MV Museu de Tecnologia e Software.
  4. Book: CP 300 Operação e Programação . Editele . 1983 . pt-br.