Toshiba Pasopia 7

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Toshiba Pasopia 7
VCFe 8.0 (478262641).jpg
Also known asPA7007
Type Home computer
Release date1983 (1983)
Introductory price$1350
Operating system T-BASIC7, CP/M optional
CPU Zilog Z80A
Memory64 KB RAM
48 KB VRAM
Graphics320 x 200 / 640 x 200
Sound Texas Instruments SN76489, 6 voices, 5 octaves
Predecessor Toshiba Pasopia
RelatedPasopia 700, Toshiba Pasopia 5

Toshiba Pasopia 7 (also known as PA7007) is a computer from manufacturer Toshiba, released in 1983 and only available in Japan, with a price of $1350. [1] [2] [3] [4] [5]

Contents

It was intended as the successor of the Toshiba Pasopia, offering improved sound and graphics. The machine is partially compatible with the original Pasopia, and supports connecting cartridge-type peripherals.

Graphic memory is increased to 48 KB and two SN76489 sound chips are available, producing six five-octave channels and two noise channels. [6]

A new version of the operating system, T-BASIC7, is also available. [7] This version is based on Microsoft BASIC and adds specific commands for this model, such as higher numerical precision or support for extra colors.

Available peripherals for the Pasopia 7 are a 5" disk drive, a Chinese characters ROM, a RS-232 interface and a printer. The keyboard is full-stroke JIS standard, with a separate numeric keypad and some function keys. [8] [6]

After 1988, some Pasopia 7 computers were donated to other countries (ex: Poland) under the "International Development of Computer Education Program". [4] [5]

Released in 1985, the Pasopia 700 [9] is based on the Pasopia 7, and was intended as a home learning system developed by Toshiba and Obunsha. Two disk-drives were added to the side of the main unit and the keyboard is separate. This machine has two cartridge slots (one at the front).

Color palette

The Pasopia 7 uses hardware dithering to simulate intermediate color intensities, based on a mix of two of eight base RGB colors displayed using the 640 x 200 resolution. This allows the machine to display a maximum of 27 colors (3-level RGB). [7]

Pasopia 7 hardware palette - 27 colors, 3-level RGB
0x000x010x020x030x040x050x060x070x08
0x090x0A0x0B0x0C0x0D0x0E0x0F0x100x11
0x120x130x140x150x160x170x180x190x1A

The 8 base colors are displayed in bold.

Actual color limits depend on the graphic mode used: [7]

See also

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References

  1. ↑ Lemmons, Phil (September 1983). "Update on Personal Computing in Japan". Byte. p. 254.
  2. ↑ "Toshiba Pasopia 7". System.cfg : Un site tout en images, entièrement dédié à la mémoire de nos anciens jouets. 2018.
  3. ↑ "Toshiba Pasopia 7". Vintage CPU. 2012-08-20. Retrieved 2022-11-12.
  4. 1 2 "Toshiba Pasopia 7". silicium.org. Retrieved 2022-11-12.
  5. 1 2 "Personal Computers TOSHIBA". KCG Computer Museum (Satellite of the Historical Computers). Retrieved 2022-11-13.
  6. 1 2 "Pasopia 7 Toshiba (Japan)". 1000 BiT - Computer's description.
  7. 1 2 3 "東芝パーソナルコンピュータ PASOPIA7 (Toshiba personal computer PASOPIA7)". 郷愁のパソコン (nostalgic personal computer).
  8. ↑ "PASOPIA 7 Toshiba". OLD-COMPUTERS.COM.
  9. ↑ "Toshiba Pasopia 700 (1985)". mousefan.telcontar.net. 2021. Retrieved 2022-11-13.
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