Commodore: 2000

Twee jaar nadat de eerste Amiga op de markt was gekomen werd de Amiga 2000 als opvolger voor de Amiga 1000 uitgebracht. Men probeerde hiermee de markt van de low end (A500) en dus de high end systemen te bereiken.

Net als de Amiga 500 werd de A2000 met Kickstart/Workbench 1.2 opgeleverd. Er zijn een aantal voordelen te opzichte van zijn voorganger: zeven interne expansion slots, de CPU kan worden verbeterd door het gebruik van een processor kaart en de inactieve slots kunnen worden gebruikt voor de niet intelligente kaarten zoals TBC’s en fan kaarten. Standaard is 1MB geheugen, uitbreidbaar tot 9MB. Vanwege de kritiek door Amiga-ontwikkelaars (inclusief het orginele Amiga Los Gatos team) op de machine kwam Commodore al snel met twee grote updates en upgrades op de A2000 in de periode van 1987 tot 1990. Daardoor kwamen de volgende varianten nog op de markt: de A2000-A, A2000-B en A2000-C

Technische specificaties: Motorola MC68000, 7,16 Mhz, Custom Chips: Denise, Paula, Fat Agnus en Gary, OS 1.2 – 2.04, OCS/ECS Chipset, 4 Channel Stereo-Sound, 512KB / 1MB ChipRAM, 5 Zorro II-Slots voor Memory-uitbreiding, HD-Controller, Graphics-/Soundcard etc., CPU-Upgrade-Slot.
 
Two years after the initial Amiga launch, Commodore released their replacement to the ageing Amiga 1000. The Amiga 2000 developed the ‘big box’ Amiga market that continued to divide users’ until the mid-1990s, and formed the second part of Commodore’s plans to diversify the Amiga market into high and low end systems (the low-end A500 had been launched two months previous). Like the Amiga 500, the A2000 was shipped with Kickstart/Workbench 1.2. The machine offered several advantages over the Amiga 1000 and 500: Seven internal expansion slots (5x 100 pin Amiga Zorro II and 2 x 16-bit ISA slots). The ISA slots were disabled by default (only power and ground pins activated), but could be used when a Commodore bridgeboard was installed (a PC-on-a-card). Inactive slots can be used for non intelligent cards like TBCs or fan cards. One megabyte memory as standard (expandable to 9MB). The CPU could be upgraded through the purchase of a processor card and attaching it to a 86 pin processor slot. The initial release was unpopular among several Amiga developers, including the original Amiga Los Gatos team. In an attempt to address many of these complaints, Commodore produced two major updates and numerous revisions to the A2000 design during the 1987 – 1990 time period. There were a few A2000 variants: A2000-A, A2000-B and A2000-C
Technical specifications: Motorola MC68000, 7.16 Mhz, Custom Chips: Denise, Paula, Fat Agnus and Gary, Buster ZorroII Buster DIP, Video OCS or ECS (4096 colors), Kickstarts 1.2, 1.3 then 2.04, Memory Memory varied according to the hardware revision. The 3.x revisions found in German models use 512Kb Chip RAM on their motherboard and 512Kb Fast RAM on a processor card. Revision 4.x, the American edition, had both 512Kb Chip and Fast RAM soldered onto the motherboard.