Amiga 2000-B

Amiga 2000

Amiga 2000

The second version of the first “big box” Amiga, full of the new Zorro 2 expansion slots and a Video slot…  It underwent it’s first major revision to this version of the hardware under Dave Haynie, which made it based on the Amiga 500 instead of the Amiga 1000 like the Amiga 2000-A was.  This was and is commonly known as the B2000, as the internal code-name for the Amiga 500 was “B52 Rock Lobster”.  Released in 1987, there were many revisions of this version, and production finished in 1991.  This was externally the same as the Amiga 2000-A, and also shared many of it’s internal features, such as Kickstart in ROM.  This version, and all later revisions, were based upon the design of the Amiga 500 – for more information, please see the Amiga 2000-A page.  This was the basis for many professional setups – particularly when paired with a “Video Toaster” Video expansion card, an accelerator card, and the Lightwave 3D Software.

It was also the basis for several different Amiga models, such as the Amiga 1500 (UK variant, sold with 2 Double density floppy drives and no hard disk), the Amiga 2000HD (An Amiga 2000 with a A2091 SCSI card and SCSI Hard Drive, usually a 52MB drive) and the Amiga 2500 (An Amiga 2000 with either a A2620 CPU module to make the Amiga 2500/20, or a A2630 CPU module to make the Amiga 2500/30).

Later revisions brought the ECS revision of the Agnus chip to the Amiga 2000, along with Kickstart 2.04 and Workbench 2.0.

CPU: Motorola 68000 @ 7.14MHz (NTSC)
Motorola 68000 @ 7.09MHz (PAL)
Motorola 68020 @ 14MHz (when sold as an A2500/20)
Motorola 68030 @ 25MHz (when sold as an A2500/30)
Chip RAM: 512K in Revision 4 boards
1024K in Revision 6 boards (ECS Chipset)
Maximum resolution: Hi res interlaced :768×486 (NTSC – 640×400 overscanned)
768×576 (PAL – 640×512 overscaned)
Low res non-interlaced: 384×243 (NTSC – 320×200 overscanned)
384×288 (PAL – 320×256 overscaned)
(16 colours maximum in hi-res 640x resolutions) *
Kickstart versions: 1.2
3.1 (available as as as upgrade, not included with any machines as standard)
Workbench versions: 1.2
3.1 (available as as as upgrade, not included with any machines as standard)
Total RAM: Varied, as little as 512K of Chip RAM only in early machines,
as much as 9MB in several configurations, dependant on main board version.
Price in 1986:
(US Dollars)

Introduction to the Commodore Amiga 2000
Commodore AmigaDOS V1.3 Enhancer Software
Commodore Amiga 2630 Accelerator Card User’s Guide (Amiga 2500/30)

Amiga 2000 technical documents by Dave Haynie

Amiga 2000 accelerators (make the machine faster) on the Big Book of Amiga Hardware

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