The Commodore Amiga 3000 is the successor of the Amiga 2500 (itself a successor of the Amiga 2000). It was replaced three years later with the Amiga 4000.
Amiga Interactive Guide description :
The A3000 is a powerhouse in comparison to previous Amiga, it was sold as a high-end graphics workstation. For a time it was used by W Industries as the basis of their highly acclaimed Virtuality machines. At the heart of the A3000 was the powerful 68030 (described in ST/Amiga Format as a 'as a mainframe on a chip'). In addition the A3000 was the first Amiga to feature the new Kickstart 2 upgrade and Zorro III slots.
To emphasis the A3000s capabilities as a high-end workstation, two operating systems were included:
The first was the newly released Kickstart/Workbench 2. This was unusual by the fact that Kickstart was stored on the hard disk rather than in ROM. This was similar to the A1000 that required Kickstart to be loaded from floppy disk before anything else could be done.
The second OS to be included with the A3000 was the Unix System (SVR4) V operating system. This allowed the use of the Unix graphical interface, X Windows and Open Look. It also came with standard networking capabilities (probably a first for Commodore), such as TCP/IP, NFS and RFS for networking between different operating systems. In a bizarre twist, the Unix OS was sold on a magnetic tape rather than floppy disk.
Three Amiga 3000 models were produced : 3000, 3000UX, and 3000T.
The 3000 was the desktop model (pictured here) which shipped with flippable 1.3 or 2.0 AmigaOS Roms. The Amiga 3000T, released in 1991, was a tower system with built-in speaker, 32Mb RAM, high-resolution mouse, 100 Mb hard-drive, a lot of Zorro II slots, a variety of drive bays, and a 25Mhz 68030 with a 68882 math coprocessor. The 3000UX shipped with "AMIX", Commodore's System-5 derived UNIX which was very nice and came with X-windows. It was Commodore's only serious attempt to get into the UNIX workstation market, and a noble effort that unfortunately failed utterly.
Notice there are some rare versions of the Amiga 3000: the 3000/16 (the speed is only 16 MHz) and the Amiga 3000+ which uses an AGA video chip and a DSP. The 3000+ was a prototype only. A few units are known to exist, but they are not supported. The DSP was able to function as a software modem in some configurations, which was extremely cool.
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| Released: | June 1990 |
| Price: | US $3,379 |
| CPU: | Motorola 68030 @ 16 or 25MHz |
| RAM: | 2MB - 18MB default |
| Display: | 16 colors at 960 x 512 |
| 4096 colors at 320 X 200. | |
| Ports: | parallel, serial, floppy |
| RGB, VGA video, SCSI, audio | |
| Storage: | Internal 880K 3.5-inch floppy |
| 40MB, 50MB, or 100MB SCSI HD | |
| OS: | AmigaDOS 2.04 |
| "Workbench" GUI |
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| NAME | AMIGA 3000 |
| MANUFACTURER | Commodore |
| TYPE | Professional Computer |
| ORIGIN | U.S.A. |
| YEAR | 1990 |
| CPU | Motorola MC68030 |
| SPEED | 16 / 25 mHz |
| CO-PROCESSOR | 3 : Super Denise (video),Fat Agnus (memory manager, blitter & copper), Paula (I/O, sound), 68881 or 68882 (math processor), SCSI DMAC |
| RAM | 1-2 MB Chip RAM, up to 18 Mb (with 16Mb FAST) and theoricaly to 4 Gb. |
| ROM | 512 KB |
| TEXT MODES | 60 x 32 / 80 x 32 |
| GRAPHIC MODES | 12 graphic modes : from 320 x 240 to 960 x 512 |
| COLORS | 32 (for 320 x X modes), 16 (for 640 x X modes) among 4096 + 2 Special modes : EHB 64 colors and HAM 4096 colors on static display. |
| SOUND | Four 8 bit PCM voices |
| I/O PORTS | Video (RGB, Composite), Parallel/Centronics, RS232c, SCSI, VGA, stereo sound, joysticks (atari) & mouse, 4 Zorro III internal slots, 2 ISA slots, 1 CPU slot, 1 video slot, external floppy, external SCSI-2, keyboard, Stereo audio output |
| BUILT IN MEDIA | one 3.5'' disk-drive (880k), SCSI-2 Hard-Drive |
| OS | AMIGA WorKBench 2.0x, Unix System (SVR4) V operating system |
| POWER SUPPLY | Internal PSU |
| PRICE | Amiga 3000T (100Mb HD) : $4498 (USA, 1991) Amiga 3000T (200Mb HD) : $4998 (USA, 1991) |
详解编辑本段回目录
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The third major release in the Amiga computer family, the Amiga 3000 is a vast improvement over previous Amiga models - it offers improved speed, better graphics capabilites, and a new and improved operating system. While the first two models, the A1000 and A2000, were similar in architecture and performance, the A3000 is a totally new, designed from the ground up as a powerful high-end graphics workstation.
The new Motorola 32-bit 68030 CPU, 68882 math co-processor, and 32-bit system memory helped increase the "integer" processing speed by a factor of 5 to 18, and the "floating point" processing speed by a factor of 7 to 200 times.
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Commodore had a licensing agreement with AT&T to include a port of Unix System V (release 4), which was available with the
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The built-in scandoubler and de-interlacing circuit modifies the standard Amiga 15KHz video signal to 31KHz, so a common PC VGA computer monitor can be used. This circuitry functions as a "flicker-fixer", eliminating the annoying "flicker" that often occurs on interlaced video signals.
Until now, no Amiga computer had a built-in hard drive controller, and the A3000 went all-out, with a high-speed DMA SCSI controller. Up to seven internal and external SCSI devices can be attached, such as hard drives, scanners, CD-ROMs, etc.
In order to conserve space, up to four expansion cards can be installed into the A3000 horizontally, as opposed to vertically in the A2000 and most other computer systems. Three different types of expansion slots exist in the A3000 - (1) Amiga Video slot, (4) Zorro II,III, and (2) ISA slots for PC compatibility, with some slots in-line with others.
The A3000 is the only Amiga computer to use the weird ZIP DRAM chips, which are installed vertically, rather than the usual horizontal position of most IC chips.
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参考文献编辑本段回目录
http://www.old-computers.com/museum/computer.asp?st=1&c=30
http://oldcomputers.net/amiga3000.html
http://oldcomputers.net/amiga3000.html
