Edge Rewrite
restyle Source code View original
// HTMLRewriter · presentation

This page was redesigned at the edge.

Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.

Jump to content

AS-1000

Edit links
From Wikipedia, the free encyclopedia
AS-1000
ManufacturerEngebrás Eletrônica e Informática Ltda
TypeHome computer
ReleasedOctober 1983; 42 years ago (1983-10)
Introductory price
Cr$ 195 000
Sinclair BASIC
CPUZ80 at 3.25 MHz
Memory16 KB (64 KB max.)
DisplayMonochrome display on television; 24 lines × 32 characters; 64 × 48 pixels semigraphics mode
ZX81

The AS-1000 was a Brazilian clone of the Sinclair ZX81 introduced by Engebrás Eletrônica e Informática Ltda in October 1983.[1][2][3][4][5][6][7][8] The main differences regarding the ZX81 are the internal power supply and larger RAM. The machine had an initial retail price of Cr$ 195 000.[3]

The computer came with 16 KB of RAM, but could be fitted with 32 or 48.[1] There were 8KB of ROM and a 40-key membrane keyboard.[1][9] A regular TV set was used as monitor, with the computer displaying 32 x 22 text characters in monochrome. By using semigraphic characters, it was possible to simulate a 64 x 44 resolution display.

There was one expansion slot at the back of the machine, with the TV RF-out, audio in/out and joystick ports located at the side.[4][10][1] Storage was by means of audio cassette, with a data transfer speed of 300 bauds.

References

[edit]
  1. 1 2 3 4 Velasco, Marcos (2023). "Engebrás AS-1000". MV - Marcos Velasco Software. Retrieved 2023-03-19.
  2. ↑ "AS-1000 advert". Micro Sistemas. January 1984. Archived from the original on 2018-10-01.
  3. 1 2 Inojosa, Ricardo (February 1984). "Os Pequenos Notáveis". Micro Sistemas. pp. 32–40.
  4. 1 2 "Micro AS1000 - ZX81". Clube Old Bits. 2008-06-11. Archived from the original on 2008-06-11. Retrieved 2023-01-16.
  5. ↑ Cardi, Marilza (2002). Evolução da computação no Brasil e sua relação com fatos internacionais (PDF). Universidade Federal de Santa Catarina.
  6. ↑ "AS-1000 - ROMs". Datassette (in Brazilian Portuguese). 2021-12-16. Retrieved 2023-03-19.
  7. ↑ "General info for: AS-1000". Spectrum Computing.
  8. ↑ Barboza, Cícero (1987). Política nacional de informática: 1971 - 1987 (PDF). Universidade Federal de Santa Catarina. p. 41.
  9. ↑ "Museu virtual dos microcomputadores de 1983". Gilberto M. Retrieved 2023-03-07.
  10. ↑ "AS-1000". World Of Spectrum Classic. Retrieved 2023-03-19.
Retrieved from "https://en.wikipedia.org/w/index.php?title=AS-1000&oldid=1335969677"