Mattel Aquarius

Mattel Aquarius
Type Home computer
Release date June 1983 (1983-06)
Introductory price 160 US$ (today $380.78)
Discontinued October 1983 (1983-10)
Media Cassette tape, ROM Cartridge
Operating system Microsoft BASIC
CPU Zilog Z80A @ 3.5 MHz
Memory 4KB RAM (expandable to 20KB), 8KB ROM
Input Keyboard

Aquarius is a home computer designed by Radofin and released by Mattel in 1983. It features a Zilog Z80 microprocessor, a rubber chiclet keyboard, 4K of RAM, and a subset of Microsoft BASIC in ROM. It connects to a television set for audio and visual output, and uses a cassette tape recorder for secondary data storage. A limited number of peripherals, such as a 40-column thermal printer, a 4-color printer/plotter, and a 300 baud modem, were released for the unit.


The Aquarius with attached expansion block including 4KB RAM expansion and game cartridge inserted, controllers, and tape Data Recorder
The back of the Aquarius, showing connectors for TV out, an external cassette drive and printer.

Looking to compete in the standalone computer market, Mattel Electronics turned to Radofin, the Hong Kong based manufacturer of their Intellivision consoles. Radofin had designed two computer systems. Internally they were known as "Checkers", and the more sophisticated "Chess". Mattel contracted for these to become the Aquarius and Aquarius II, respectively. Aquarius was announced in 1982 and finally released in June 1983, at a price of $160. Production ceased four months later because of poor sales. Mattel paid Radofin to take back the marketing rights, and four other companies—CEZAR Industries, CRIMAC Inc., New Era Incentives, Inc., and Bentley Industries—also marketed the unit and accessories for it. Bentley Industries (of Los Angeles) and New Era Incentives, Inc. (of St. Paul) are still in business, though they no longer have any affiliation with the Aquarius product line.

The Aquarius often came bundled with the Mini-Expander peripheral, which added game pads, an additional cartridge port for memory expansion, and the GI AY-3-8914 sound chip, which was the same one used on the Intellivision console. Other common peripherals were the Data recorder, 40 column thermal printer, 4K and 16K ram carts. Less common first party peripherals include a 300 baud cartridge modem, 32k RAM cart, 4 color plotter, and Quick Disk drive.

Although less expensive than the Texas Instruments TI-99/4A and Commodore VIC-20, the Aquarius had comparatively weak graphics and limited memory. Internally, Mattel programmers dubbed it "the system for the seventies". Of the 32 software titles Mattel announced for the unit, only 21 were released, most of which were ports from Mattel's Intellivision game console. Because of the hardware limitations of the Aquarius (such as a lack of programmable graphics), the quality of many games suffered. This is in contrast to other home video game companies of the era such as Atari and Coleco, who were branching out into the home computer market with computers that matched or exceeded the capabilities of their dedicated gaming consoles.

Shortly after the release of the Aquarius, Mattel announced plans for another home computer, the Aquarius II. There is evidence that the Aquarius II reached the market in small numbers,[1][2] but it was never a commercial success.

Technical specifications

The computer ran off a Zilog Z80, but was underpowered even at the time of its release.


  1. Mattel Aquarius II at, retrieved October 6, 2006
  2. Mattel Aquarius at (translated via Babel Fish, original article), retrieved October 6, 2006 Archived March 11, 2007, at the Wayback Machine.
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