Amiga 2000
The Amiga 2000 is a personal computer of the Amiga series. It represents the high-end counterpart to the published also in 1987 Amiga 500 dar.
The Amiga 2000 was designed as a desktop computer, contrary to the Amiga 500 was room for expansion via the Zorro bus in the larger housing. This allowed (comparable to the five years later specified PCI default) Autoconfig (comparable with Plug and Play for Windows), while IBM - compatible PCs were equipped at this time mostly with ISA slots.
The Amiga 2000 should the professional segment occupied, in contrast to the parallel model Amiga 500, but this was mainly restricted to the range image processing or TV stations.
Various special chips
The Amiga 2000 differed by various motherboard models (A and B) and the special chips thereon.
The first model, the Amiga 2000A was designed in Germany in the Brunswick Development Department. He was endowed with an OCS chipset and the Agnus chip of the Amiga 1000, which allows a maximum of 512 KB of Chip RAM, however, could not be expanded.
In 1988 appeared Amiga 2000B (developed in the U.S.) the Fat Agnus chip was used, which could manage 1 MB chipmem. However, subsequent versions of the B- model contained the ECS chipset with Super Big Agnus, which was then used in an Amiga 3000.
The ECS chipset was only in 1990 in a revision 6.x ( only by some users A2000C called ) installed, with this 2 MB Chip Ram were possible.
Furthermore, the Amiga 2000, as well as the Amiga 500, compared to the Amiga 1000 are the Kickstart in ROM, that is, it does not have to be loaded from floppy disk, when you start the computer.
Succession computer within the Amiga series are the Amiga 3000 and 4000.
Hardware
- Chipset: OCS (Original Chipset), from revision 6.x ECS
- RAM: 1 MB (megabyte ), the Amiga 2000A 512K on the motherboard and 512 KB on a memory expansion ( ' Ranger Card ') in the CPU slot had, all subsequent revisions had 1 MB on the motherboard; to 9 MB expandable with PC Card bridge to 7 MB
- ROM: 256 KB Kickstart 1.2/1.3 later Kickstart 2.0 with 512 KB
- Internally five Zorro II slots (16-bit, autoconfig ), 2 in series with the 16- bit ISA slots for the Bridge Card ( PC Card, see at A1060 Sidecar )
- 2 internal 16 -bit ISA slots (2 in series with Zorro II slots, see above)
- 2 internal 8 -bit ISA slots
- Internally an extension slot ( CPU slot ) - for CPU boards with 68020 -, 68030 -, or 68040 processors ( fastest card: 68060 with 50 MHz ( Blizzard 2060 ) )
- Internally a video slot - for Genlocks, Flickerfixerkarte, etc. ( the 2000A only a Genlockport exists)
- A parallel port ( SSP)
- A RS232 port
- Per an audio output left / right audio channel ( RCA, for direct connection to a stereo system, for example )
- A monochrome video out ( composite video signal, not in the Amiga 2000A )
- 2 internal connectors for floppy drives ( one 3.5 inch drive with 880 KB included)
Models
Amiga 1500
The Amiga 1500 is a variant of the Amiga 2000 with an additional ( total of two ) internal floppy drives.
It was sold mainly by Commodore England.
Amiga 2500
The Amiga 2500, which came on the market in 1989, corresponds to the Amiga 2000, Hardware revision 6.2 and later. He was equipped with a 68020 - ( A2620 ) or 68030 CPU card ( A2630 ) and a SCSI controller ( A2091 ) with a SCSI hard drive.
Amiga 2500/UX
Included with the Amiga 2500/UX the Unix derivative AMIX was included.