Amiga

In computing, Amiga is a range of home/personal computers primarily using the Motorola 68000 processor family, whose development started in 1982, initially as a game machine. The original Amiga hardware was designed by Jay Miner; his machine was ahead of its time when it appeared in 1985, having a custom chipset with advanced graphics and sound features and a sophisticated multitasking operating system, now known as AmigaOS. The Amiga eventually became popular among computer enthusiasts, especially in Europe, as they upgraded from 8-bit computers such as the Commodore 64. It also found a business role in video production.

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Contents

History

The first Amiga computer, simply called the Amiga, was released in 1985 by Commodore, who marketed it both as their intended successor to the Commodore 64 and as their competitor against the Atari ST range. It was later renamed the Amiga 1000 (or A1000 for short).

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An Amiga 500 computer system, with 1084S RGB monitor and A1010 floppy disk drive.

In 1987 Commodore released two new Amiga models, the A500 and the A2000 as low-end and high-end machines, respectively. The former became the most popular Amiga computer of that decade and was mostly known as a games machine, while the latter was marketed as a more serious workstation for graphic purposes, due to the presence of a SCSI controller option, a Genlock slot and an I/O video connector.

In 1990 the A3000 was introduced in the market as the successor of both A1000 and A2000, with an extended chipset (ECS), and the second release of its operating system, to be known eventually as the AmigaOS.

In the same year, Commodore released three new low-end machines: the CDTV, aimed to move the platform to the living room; the A500+, with the same enhancements as the A3000; and the A600, basically an A500+ in a smaller box with an IDE controller for hard disks. All of them were a commercial failure, mainly due to poor marketing by Commodore.

Mass-market Amigas were then considerably cheaper than PCs or Macs of their time. This boosted sales in the more price-conscious European markets, but led to Commodore being viewed in the United States as a producer of cheap and nasty "game machines". This conception was furthered by the fact that most Commodore retail outlets were toy stores, and marketing campaigns which were woefully mismatched with the status-conscious American public. This explains why Amiga was very successful in Europe, but not in the US market, with less than a million sold.

In 1992 Commodore released their last Amiga computer models, the A1200 and the A4000: both of them featured the new AGA chipset and the third release of AmigaOS.

In 1993, in a desperate attempt to save their business, menaced by console giants as Sega and Nintendo, Commodore marketed the CD32, one of the earliest compact disc based consoles, with specs similar to the A1200.

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An Amiga A500 computer, photographed in 1988

In 1994 Commodore filed for liquidation and its asset were bought by Escom, a German PC manufacturer, which in turn filed for liquidation during 1997. The Amiga brand was then sold to another PC manufacturer, Gateway 2000, which had grand plans for it, but they eventually sold it in 2000 before actually realizing their plans. There are rumors that this sale was conducted because of ongoing force by Microsoft; however, this is unproven.

The current owner of the trademark, Amiga Inc., has licensed the rights to make hardware using the Amiga brand to an U.K. computer vendor, Eyetech Group, Ltd founded by some former employees of the UK branch of Commodore International. They are currently selling the AmigaOne via an international dealer network. The AmigaOne is a PowerPC computer suited to run the last remnant of the platform, the AmigaOS, that was in turn licensed to a Belgian-German company, Hyperion Entertainment.

During these years, a very limited number of clones (Amiga-compatible computers) were produced, as both Commodore and subsequent owners of the trademark strongly refused to have Amigas produced under license.

Amigas running any operating system up to version 3.9 are being considered "Classic" Amigas today, contrary to the new Amiga Inc./Eyetech/Hyperion models.

Many "Classic" Amigas are still in use today to produce commercials or local cable TV shows.

Technical features

The Amiga had some of the most impressive sound and graphics available for the home user. Indeed, it was also used for commercial entertainment production till the mid 1990s, aiding users in the Video editing and 3D fields.

The Original Amiga chipset, or OCS, was more advanced than other architectures of its time: it had dedicated chips for graphic effects based on the monitor's beam position and the use of genlocks was very easy; even today many broadcast corporations still use A3000s and A4000s for their real-time video effects. Many programs for making fansubs were written for the Amiga.

One unique feature the Amiga had was the ability to change the monitor resolution on the fly, within a scan line or two. This allowed multiple overlapping screens of different resolutions that could be pulled down or up in front of each other, completely without interfering with each other, controlled at the hardware level. The chipset included a blitter, which could not only copy and manipulate large area of graphics, making the Amiga well suited to arcade action games, but it also included line drawing and area-filling hardware, which helped advance the popularity of real-time 3D games.

Operating systems

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After powering up or rebooting an Amiga 500 this screen display is seen, meaning the OS started and asking the user to insert a bootable floppy disk. The displayed floppy is Workbench 1.3.

The operating system, AmigaOS, was also quite sophisticated for its time, combining an elegant graphical user interface (GUI) like that of the Apple Macintosh with some of the flexibility of UNIX while retaining a simplicity that made maintenance rather easy. While its operating system was the only preemptive multitasking platform with an efficient message-passing kernel in the consumer marketplace for several years with an efficient memory management, robustness left something to be desired, mainly due to the absence of protected memory, resulting in the famous "Guru Meditation" errors.

The Amiga operating system was resurrected in 2000 as AmigaOS 4, which currently runs only on AmigaOne computers and on A1200s and A4000s with a PowerPC accelerator card.

Other, still maintained operating systems are available for the classic Amiga platform, including Linux, NetBSD, and OpenBSD. Commodore Amiga Unix (based on AT&T System V Rel. 4) was available only for the A2500 and A3000.

Third party software

In spite of being sold short, Amiga was originally supported by such prestigious software titles as AutoCAD, WordPerfect, Deluxe Paint, and Lattice C. Video Toaster, one of the first all-in-one graphics and video editing packages, began on the Amiga. Some titles were later ported to Microsoft Windows and continue to thrive there, like the rendering software Maxon Cinema 4D or Lightwave, which was originally a part of Video Toaster.

Several universities used to host one of the most extensive non-commercial software archive for a single computer-platform: Aminet. It was born as a spare time project by Urban Müller, a Swiss student who was surprised by the immediate success of his archive. Soon the archive became mirrored worldwide and got even distributed on monthly CD-ROMs. Reports of daily additions to this software-archive were posted automatically to Usenet (de.comp.sys.amiga.archive), or could be requested as an email-newsletter. Most of the programs on Aminet were Public Domain or Shareware, but important software companies made updates and demo-versions of their programs available as well. Now Aminet is complemented by OS4Depot, which archives non-commercial and free software for the upcoming release of AmigaOS 4.0.

Models and variants

Marketed Amiga models

Original Chipset (OCS)
Model Timescale RAM (base) OS Version Additional Information
Amiga 1000 1985 - 1987 256 KB 1.0 - 1.3 Later A1000s shipped with 512KB base memory
Amiga 500 1987 - 1990 512 KB 1.2 - 1.3 First "low-end" Amiga
Amiga 2000 1987 - 1992 1MB 1.2 - 2.04 First desktop Amiga with expansion slots
Amiga 2500 1989 - 1990 1MB 1.3 A2000+'020/'030 card (not a distinct model)
Amiga CDTV 1991 - 1992 1MB 1.3 CD-ROM based multimedia machine
Enhanced Chipset (ECS)
Model Timescale RAM (base) OS Version Additional Information
Amiga 3000 1990 - 1992 2/5 MB 2.0 - 2.04 First Zorro III system
Amiga 3000T 1990 - 1992 1/4 MB 2.04 First "towerized" Amiga
Amiga 3000UX 199? - 199? ? MB 2.04 UNIX based Amiga 3000
Amiga 500+ 1991 - 1992 1 MB 2.04 ECS based A500 with 1MB RAM base memory
Amiga 600 1992 1 MB 2.05 - 2.1 First Amiga using SMT, built-in IDE and PCMCIA support
Advanced Graphics Architecture (AGA)
Model Timescale RAM (base) OS Version Additional Information
Amiga 1200 1992 - 1994 2 MB 3.0 Entry-level AGA machine, A1200HD with 20~209MB hard drives
Amiga 4000 1992 - 1994 2 MB 3.0 First AGA machine, 68030/68040 CPU options
Amiga 4000T 1993 - 1994 2 MB 3.1 Towerized version of the A4000
Amiga CD32 1993 - 1994 2 MB 3.1 World's first 32-bit CD-ROM based console
PowerPC based
Model Timescale RAM (base) OS Version Additional Information
Pegasos G3 2002 - Varies MorphOS MicroATX format motherboard
AmigaOne SE 2002 - 2004 Varies (pre)4.0 ATX format motherboard
AmigaOne XE 2003 - 2004 Varies (pre)4.0 ATX format motherboard
Pegasos G3/G4 2004 - Varies MorphOS MicroATX format motherboard
MicroA1 - C 2004 - Varies (pre)4.0 Mini-ITX format motherboard
MicroA1 - I 2004 - Varies (pre)4.0 Mini-ITX format motherboard

Unreleased models

Due to management turmoil, some viable Amiga models under development were canceled prior to release:

Unreleased models (after Commodore)

A number of new Amiga models were announced after the end of the Commodore model era. However, very few of them were ever produced beyond simple prototypes (if they even got that far). Some models that were never produced include:

Trivia

See also

References

External links

Owners and licensees

News and discussions

Software

Links Directory

Link pages

History

Other


List of Commodore microcomputers

MOS Technology 6502-based (8-bit):   MOS/CBM KIM-1 | PET/CBM | CBM-II (aka B/P series) | VIC-20/VC-20 | C64 | SX-64 | C16 & 116 | Plus/4 | C128
M68K-based (16/32-bit):   Amiga 1000 | Amiga 500 | Amiga 2000 | Amiga 500+ | Amiga 2500 | Amiga 3000, UX, T | Amiga 600 | Amiga 1200 | Amiga 4000

See also: Amiga, 16-bit, 1982, 1985, 1987, 1988, 1990, 1992, 1993