The A1000, or Commodore Amiga 1000, was Commodore's initial Amiga personal computer, introduced on July 23, 1985 at the Lincoln Center in New York City. Machines began shipping in September with a base configuration of 256 kB of RAM at the retail price of 1,295 USD. A 13-inch (330 mm) analog RGB monitor was available for around 300 USD bringing the price of a complete Amiga system to 1,595 USD. Before the release of the Amiga 500 and A2000 models in 1987, the A1000 was simply called Amiga.
Source: Wikipedia, "Amiga 1000", available under the CC-BY-SA License.