The AS-1000 was a Brazilian clone of the

Sinclair ZX81 The ZX81 is a home computer that was produced by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and designed to be a low- ...

introduced by ''Engebrás Eletrônica e Informática Ltda'' in October 1983. The main differences regarding the ZX81 are the internal

power supply A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, electric current, current, and frequency to power ...

and larger

RAM Ram, ram, or RAM most commonly refers to: * A male sheep * Random-access memory, computer memory * Ram Trucks, US, since 2009 ** List of vehicles named Dodge Ram, trucks and vans ** Ram Pickup, produced by Ram Trucks Ram, ram, or RAM may also ref ...

. The machine had an initial retail price of Cr$ 195 000. The computer came with 16 KB of RAM, but could be fitted with 32 or 48. There were 8KB of

ROM Rom, or ROM may refer to: Biomechanics and medicine * Risk of mortality, a medical classification to estimate the likelihood of death for a patient * Rupture of membranes, a term used during pregnancy to describe a rupture of the amniotic sac * ...

and a 40-key

membrane keyboard A membrane keyboard is a computer keyboard whose keys are not separate, moving parts, as with the majority of other keyboards, but rather are pressure pads that have only outlines and symbols printed on a flat, flexible surface. Very little tacti ...

. 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 Expansion may refer to: Arts, entertainment and media * ''L'Expansion'', a French monthly business magazine * Expansion (album), ''Expansion'' (album), by American jazz pianist Dave Burrell, released in 2004 * Expansions (McCoy Tyner album), ''Ex ...

at the back of the machine, with the TV RF-out, audio in/out and joystick ports located at the side. Storage was by means of

audio cassette The Compact Cassette, also commonly called a cassette tape, audio cassette, or simply tape or cassette, is an analog audio, analog magnetic tape recording format for Sound recording and reproduction, audio recording and playback. Invented by L ...

, with a data transfer speed of 300 bauds.

References

{{Sinclair computers and clones Sinclair ZX81 clones Z80-based home computers Computers designed in Brazil Goods manufactured in Brazil Computer-related introductions in 1983