 |
---- Amiga
1000 ---- |
|
| Amiga-Online! >> Amiga Info >> Amiga Models >> Amiga 1000 |
|
Launched: July 23, 1985
Commodore launched the Commodore
Amiga in a grandiose show at the Lincoln Center in New York on July 23, 1985.
The machine itself was based upon the earlier Lorraine project. The unit went on
sale a few months later, retailing at $1295.00 US dollars.
The company were pressured by Atari to launch the Commodore Amiga ahead of their
original schedule . The Tramiel-led company had attempted to buy the Amiga
technology but had been forced to develop their own 68000 machine based upon
off-the-shelf parts. In spite of a shorter development time, the Atari 520ST
beat the Commodore Amiga to the market by several months. As a result, Amiga
Workbench 1.1 (the Amiga disk based OS) was buggy and prone to crashes.
At the time the Commodore Amiga was far in advance of its competitors: the IBM PC market was using a 16 colour CGA display and the Apple Macintosh was limited to a B/W display. These specifications are taken from the original advertising for the A1000 in the USA. The Atari continued to beat the Amiga in the market for several years, in part, due to Commodore's focus upon the high-end market. It is only when the Amiga 500 was launched that Commodore were able to beat Atari in the home computer market. In 1987 the Commodore Amiga was redubbed the Commodore Amiga 1000.
68000 @ 7 MHz
The A1000 has a socketed 68000 @ 7.09 MHz (PAL) or 7.16 MHz (NTSC). Upgrading the processor requires the use of a processor board. Many boards designed for the A500 works perfectly in the A1000, either connected to the side expansion port or to the 68000's socket.
up to 1 MB Chip RAM
up to 32 MB Fast RAM on processor cards
up to 8 MB Fast RAM on side expansion cards
The A1000 has 256 kB Chip RAM
soldered to its motherboard which can be expanded to 512 kB with a memory
expansion card.
Fast RAM can be added either via the side expansion connector or via processor
boards.
Agnus - OCS display controller
Denise - OCS graphics coprocessor
Paula - audio and I/O controller
Gary - system address decoder
Kickstart ROM
The A1000's OCS chip set supports the following screen modes:
| Low | High | |||
|---|---|---|---|---|
| PAL, non-interlaced PAL, interlaced NTSC, non-interlaced NTSC, interlaced |
320×256 320×512 320×200 320×400 |
640×256 640×512 640×200 640×400 |
50 Hz, 15.75 kHz 50 Hz, 15.75 kHz 60 Hz, 15.75 kHz 60 Hz, 15.75 kHz |
1× side expansion slot
It is the same 86 pin connector as the one later utilized on the A500. Many A500 expansion boards work flawlessly however the units are the wrong way round with its port on the front.
1× serial DB25 female, RS232
1× parallel DB25 male, Centronics
1× video DB23 male, analog RGB
1× composite, black & white
2× mouse/game DB9 male
2× stereo audio RCA jack
1× keyboard RJ12
1× external floppy DB23 female
1× internal floppy 34 pin header
The floppy drive controller
supports up to four devices - one attached to the internal floppy header and
three connected to the external floppy port. Both double and high density disk
drives are supported.
A 880 kB double density floppy disk drive is built into the A1000.