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The A2000, also known as the Commodore
Commodore International

Commodore, the commonly used name for Commodore International, was a United States electronics company based in West Chester, Pennsylvania which was a vital player in the home computer/personal computer field in the 1980s....
 Amiga
Amiga

The Amiga is a family of personal computers originally developed by Amiga Corporation. Development on the Amiga began in 1982 with Jay Miner as the principal hardware designer....
 2000, was released in 1986. Although aimed at the high-end market it was technically very similar to the A500, so similar in fact that the A2000B revision was outright based on the A500 design. What the A2000 had over the A500 was a bigger case with room for five Zorro II
Zorro II

Zorro II is the name of the general purpose expansion bus used by the Amiga 2000 computer. The bus is mainly a buffered extension of the Motorola 68000 bus, with support for bus mastering direct memory access....
 proprietary expansion slots, two 16-bit and two 8-bit ISA
Industry Standard Architecture

Industry Standard Architecture was a computer bus standard for IBM compatible computers....
 slots, a CPU
Central processing unit

A central processing unit is an electronic circuit that can execute computer programs. This broad definition can easily be applied to many early computers that existed long before the term "CPU" ever came into widespread usage....
 upgrade slot, a video slot, and a battery-backed clock.

It should also be noted that, like the Amiga 1000
Amiga 1000

The A1000, or Commodore International Amiga 1000, was Commodore's initial Amiga personal computer, introduced on July 24, 1985 at the Lincoln Center in New York City....
 and unlike the Amiga 500, the A2000 came in a desktop case with a separate keyboard.






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Encyclopedia


The A2000, also known as the Commodore
Commodore International

Commodore, the commonly used name for Commodore International, was a United States electronics company based in West Chester, Pennsylvania which was a vital player in the home computer/personal computer field in the 1980s....
 Amiga
Amiga

The Amiga is a family of personal computers originally developed by Amiga Corporation. Development on the Amiga began in 1982 with Jay Miner as the principal hardware designer....
 2000, was released in 1986. Although aimed at the high-end market it was technically very similar to the A500, so similar in fact that the A2000B revision was outright based on the A500 design. What the A2000 had over the A500 was a bigger case with room for five Zorro II
Zorro II

Zorro II is the name of the general purpose expansion bus used by the Amiga 2000 computer. The bus is mainly a buffered extension of the Motorola 68000 bus, with support for bus mastering direct memory access....
 proprietary expansion slots, two 16-bit and two 8-bit ISA
Industry Standard Architecture

Industry Standard Architecture was a computer bus standard for IBM compatible computers....
 slots, a CPU
Central processing unit

A central processing unit is an electronic circuit that can execute computer programs. This broad definition can easily be applied to many early computers that existed long before the term "CPU" ever came into widespread usage....
 upgrade slot, a video slot, and a battery-backed clock.

It should also be noted that, like the Amiga 1000
Amiga 1000

The A1000, or Commodore International Amiga 1000, was Commodore's initial Amiga personal computer, introduced on July 24, 1985 at the Lincoln Center in New York City....
 and unlike the Amiga 500, the A2000 came in a desktop case with a separate keyboard. The case was more PC-like than the A1000 - taller to accommodate the expansion cards and lacking the space beneath for the keyboard.

The A2000 was eventually succeeded by the Amiga 3000
Amiga 3000

The A3000, also known as the Commodore International Amiga 3000, was a much more serious proposition to build a professional multimedia computer than the previous A2000 effort....
 in 1990.

Technical specifications


Model A (Revisions 3.0-4.0)/ B (Revisions 4.1-5.0) - 1986

  • CPU: Motorola 68000
    Motorola 68000

    The Motorola 68000 is a 16/32-bit Complex instruction set computer microprocessor core designed and marketed by Freescale Semiconductor ....
     (7.16 MHz NTSC, 7.09 MHz PAL)
    • The CPU can be upgraded with CPU cards
  • Chipset: OCS
    Original Amiga chipset

    The Original Chip Set was a chipset used in the earliest Commodore International Amiga computers and defined the Amiga's graphics and sound capabilities....
     (Original Chipset)
    • Audio (Paula
      Original Amiga chipset

      The Original Chip Set was a chipset used in the earliest Commodore International Amiga computers and defined the Amiga's graphics and sound capabilities....
      ):
      • 4 voices / 2 channels (Stereo)
      • 8-bit resolution / 6-bit volume
      • 28 kHz sampling rate
      • 70 dB S/N Ratio
    • Video (Common resolutions):
      • 320×200/256 with 32 colors, 64 colors in Halfbrite or 4096 in HAM-6
      • 640×400/512i with 16 colors
    • Battery-backed clock
  • Memory:
    • 256 KB
      Kilobyte

      Kilobyte is a unit of Computer data storage equal to either 1,024 bytes or 1,000 bytes , depending on context.It is abbreviated in a number of ways: KB, kB, K and Kbyte....
       ROM
      Read-only memory

      Read-only memory is a class of computer storage media used in computers and other electronic devices. Because data stored in ROM cannot be modified , it is mainly used to distribute firmware ....
       for Kickstart
      AmigaOS

      AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000....
       code.
    • 512 KB (Max) / (1 MB
      Megabyte

      Megabyte is a SI prefix-multiple of the unit byte for digital information computer storage or transmission and is equal to 106 bytes....
       Max) of Chip RAM
      Chip RAM

      Chip RAM is the name given to Random Access Memory in the Amiga computer that could be accessed by the Original Amiga chipset as well as the Central processing unit....
      .
    • 512 KB Fast RAM in MMU slot (in some Model As only) / Soldered on motherboard
      • Practical limit of 8 MB total Fast RAM
        Chip RAM

        Chip RAM is the name given to Random Access Memory in the Amiga computer that could be accessed by the Original Amiga chipset as well as the Central processing unit....
         memory without the use of a CPU expansion card, due to the 24-bit address bus
        Address bus

        An address bus is a computer bus that is used to specify a memory address. When a central processing unit or direct memory access-enabled device needs to read or write to a memory location, it specifies that memory location on the address bus ....
        .
  • Storage:
    • 3.5" DD Floppy drive, capacity 880 KB
    • SCSI Hard drive in A2000HD systems.
  • Input/Output connections:
    • Composite TV
      Television

      Television is a widely used telecommunication mass-media for transmitting and receiving moving , either monochrome or color, usually accompanied by sound....
       out (Black & White, not present on Model A)
    • Analogue RGB video plug (Male DB23)
    • RCA audio plugs
    • 2 x Game/Joy/Mouse ports (Male DE9)
    • Keyboard port (5 pin DIN)
    • RS232 Serial port (Male DB25)
    • Centronics Parallel port (Female DB25)
    • Port for external floppy drive (Female DB23)
  • Internal connectors:
    • 5 Zorro II
      Zorro II

      Zorro II is the name of the general purpose expansion bus used by the Amiga 2000 computer. The bus is mainly a buffered extension of the Motorola 68000 bus, with support for bus mastering direct memory access....
       slots (16-bit, AutoConfig
      Autoconfig

      Autoconfig is an auto-configuration feature of Amiga computers which assigns resources to expansion devices without the need for jumper s. It is analogous to PCI Configuration Space....
      )
    • 2 16-bit ISA slots (Inactive per default, only usable with a PC emulation bridgeboard or bus bridge installed)
    • 2 8-bit ISA slots (also inactive, some models could be fitted with extension edge connectors, upgrading these slots to 16 bits)
    • 1 32 Pin Internal floppy connector
    • 1 MMU / CPU Slot
    • 1 Genlock
      Amiga

      The Amiga is a family of personal computers originally developed by Amiga Corporation. Development on the Amiga began in 1982 with Jay Miner as the principal hardware designer....
       slot in Rev A models.
    • 1 video slot connector in model Bs for genlocks, flicker fixers, Video Toaster
      Video Toaster

      The NewTek Video Toaster is a combination of computer hardware and computer software for the editing and production of Standard Definition TV NTSC and PAL video on personal computers....
       etc
  • Casing:
    • 200-205 Watt switching power supply
    • 2 3.5" drive bay
      Drive bay

      A drive bay is a standard-sized area for adding Computer hardware to a computer. Most drive bays are fixed to the inside of a case, but some can be removed....
      s for 3.5" floppy drives or other peripherals
    • 1 5.25" drive bay for 5.25" floppy drive or other peripherals
  • Software (Bundled):
    • AmigaOS
      AmigaOS

      AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000....
       1.2 / 1.3 operation system.
    • Kickstart
      AmigaOS

      AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000....
       1.2 / 1.3 (In ROM)
    • Voice synthesis library

Model C (Revisions 6.0-6.5) - 1991

Also known as the A2000+ it is for the most part identical to its forerunner.
  • Chipset: OCS in Revisions 6.0-6.2, ECS
    Enhanced Chip Set

    Enhanced Chip Set is the name used for the enhanced version of the Amiga computer's original chipset . ECS was introduced in 1990 debuting in the Amiga 3000....
     (Enhanced Chip Set) in revisions 6.3-6.5
    • Video (New resolutions for ECS):
      • 640×480 with 4 colors (Productivity)
      • 800×600i with 2 colors (Super72)
  • Memory:
    • 512 KB ROM for Kickstart
      AmigaOS

      AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000....
       code.
    • 1 MB of Chip RAM
      Chip RAM

      Chip RAM is the name given to Random Access Memory in the Amiga computer that could be accessed by the Original Amiga chipset as well as the Central processing unit....
      , (2 MB Max) with third party adaptors
  • Software (Bundled):
    • AmigaOS
      AmigaOS

      AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000....
       2.0 operation system. (Kickstart
      AmigaOS

      AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000....
       2.0/Workbench
      AmigaOS

      AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000....
       2.0)


Commodore UK sold a variant of the A2000, the A1500. The A1500 shipped with dual floppy drives, and 1MB of RAM as standard, along with the ECS
Enhanced Chip Set

Enhanced Chip Set is the name used for the enhanced version of the Amiga computer's original chipset . ECS was introduced in 1990 debuting in the Amiga 3000....
 chipset and Amiga OS 2.04. The A2500 was an A2000 sold with either an A2630 (with 25MHz 68030 and 2 or 4MB RAM) or A2620 (Motorola 68020
Motorola 68020

The Motorola 68020 is a 32-bit microprocessor from Motorola, released in 1984. It is the successor to the Motorola 68010 and is succeeded by the Motorola 68030....
 @ 14MHz) accelerator, A2091 SCSI controller and in some models an A2320 VGA card (flicker fixer).

See also



External links

  • – History of the Amiga 2000.