68k-based SGIs (IRIS Series) - Revision history

Raion: Categories

2025-09-19T03:38:52Z

Raion: Raion moved page 68-based SGIs (IRIS Series) to 68k-based SGIs (IRIS Series)

2025-09-19T03:37:10Z

Raion moved page 68-based SGIs (IRIS Series) to 68k-based SGIs (IRIS Series)

← Older revision	Revision as of 03:37, 19 September 2025
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Raion at 03:32, 19 September 2025

2025-09-19T03:32:53Z

← Older revision		Revision as of 03:32, 19 September 2025
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	== IRIS 2000 Series ==		== IRIS 2000 Series ==
			[[File:IRIS 2000 Terminal .png\|alt=An IRIS 2000 Terminal Sitting on a Table with a monitor. \|left\|thumb\|An IRIS 2000 Terminal]]
	The IRIS 2000 series includes the 2000 and 2200 terminals and the 2300, 2400 and 2500 workstations. These use the PM2 multibus board with a Motorola 68010 clocked at 10MHz. The SKYFPM-M-03 is an optional FPU board for these systems. These systems supported a max of 2MB of RAM. GL2-2.x is the singular OS used by these.		The IRIS 2000 series includes the 2000 and 2200 terminals and the 2300, 2400 and 2500 workstations. These use the PM2 multibus board with a Motorola 68010 clocked at 10MHz. The SKYFPM-M-03 is an optional FPU board for these systems. These systems supported a max of 2MB of RAM. GL2-2.x is the singular OS used by these.

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	== IRIS 3000 Series ==		== IRIS 3000 Series ==
			[[File:IRIS 3130 Front.jpg\|thumb\|Front of a rebranded IRIS 3130. Courtesy of sgistuff.net]]
	The IRIS 3000 series was the end of the Motorola 68000 line for SGI. All IRIS 3000s use the Motorola 68020 running at 16MHz. The 3010 is the singular terminal system, with the 3020, 3030, 3110, 3115, 3120, and 3130 all being workstations. All use the IP2 processor board which uses a private bus between the CPU, FPU and memory. The 3000 series uses a 10-GE Enhanced IRIS Graphics, which has 10GEs and 8 bitplanes with a max of 12MB for the terminal and 16MB for the workstations.		The IRIS 3000 series was the end of the Motorola 68000 line for SGI. All IRIS 3000s use the Motorola 68020 running at 16MHz. The 3010 is the singular terminal system, with the 3020, 3030, 3110, 3115, 3120, and 3130 all being workstations. All use the IP2 processor board which uses a private bus between the CPU, FPU and memory. The 3000 series uses a 10-GE Enhanced IRIS Graphics, which has 10GEs and 8 bitplanes with a max of 12MB for the terminal and 16MB for the workstations.
			[[File:IRIS 3130 Rear.jpg\|alt=Rear of a rebranded IRIS 3130. Courtesy of sgistuff.net\|left\|thumb\|Rear of a rebranded IRIS 3130. Courtesy of sgistuff.net]]
	GL2-3.x is the singular OS used by these. The later IRIS 3100 series uses a slightly enhanced IRIS Graphics boardset with 12 GEs, and a max of 32 bitplanes.		GL2-3.x is the singular OS used by these. The later IRIS 3100 series uses a slightly enhanced IRIS Graphics boardset with 12 GEs, and a max of 32 bitplanes.

Raion at 03:01, 18 September 2025

2025-09-18T03:01:12Z

← Older revision		Revision as of 03:01, 18 September 2025
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	The earliest SGI systems were 68000-68020 powered graphics terminals and workstations running GL2, a System V UNIX with an unusual for the time focus on graphics. Multibus standard powered machines, they were similar to Sun Multibus systems in many respects.		The earliest SGI systems were 68000-68020 powered graphics terminals and workstations running GL2, a System V UNIX with an unusual for the time focus on graphics. Multibus standard powered machines, they were similar to Sun Multibus systems in many respects.

	They were later replaced by the Professional IRIS series of systems.		They were later replaced by the [[Professional IRIS]] series of systems.

	== IRIS 1000 Series ==		== IRIS 1000 Series ==

Raion: Created page with "The earliest SGI systems were 68000-68020 powered graphics terminals and workstations running GL2, a System V UNIX with an unusual for the time focus on graphics. Multibus standard powered machines, they were similar to Sun Multibus systems in many respects. They were later replaced by the Professional IRIS series of systems. == IRIS 1000 Series == The 1000 and 1200 computers used a Motorola 68000 microprocessor clocked at 8 Mhz and were sold as diskless systems intend..."

2025-09-18T03:00:45Z

Created page with "The earliest SGI systems were 68000-68020 powered graphics terminals and workstations running GL2, a System V UNIX with an unusual for the time focus on graphics. Multibus standard powered machines, they were similar to Sun Multibus systems in many respects. They were later replaced by the Professional IRIS series of systems. == IRIS 1000 Series == The 1000 and 1200 computers used a Motorola 68000 microprocessor clocked at 8 Mhz and were sold as diskless systems intend..."

New page

The earliest SGI systems were 68000-68020 powered graphics terminals and workstations running GL2, a System V UNIX with an unusual for the time focus on graphics. Multibus standard powered machines, they were similar to Sun Multibus systems in many respects.

They were later replaced by the Professional IRIS series of systems.

== IRIS 1000 Series ==
The 1000 and 1200 computers used a Motorola 68000 microprocessor clocked at 8 Mhz and were sold as diskless systems intended for use as a terminal to a VAX system. The mainboard in the IRIS 1x00 machines is of Sun origin, existing before the founding of Sun Microsystems.

=== IRIS 1400 and 1500 ===
The 1400 and 1500 were equipped with a 10 MHz Motorola 68010 microprocessor, 1.5 MB of RAM and supported ST-506 or SMD drives. IRIS 1400 and 1500 used GL2 operating system, Version 1. It uses the earliest version of IRIS Graphics. Additional memory, a floating point unit and a faster CPU were available.

== IRIS 2000 Series ==
The IRIS 2000 series includes the 2000 and 2200 terminals and the 2300, 2400 and 2500 workstations. These use the PM2 multibus board with a Motorola 68010 clocked at 10MHz. The SKYFPM-M-03 is an optional FPU board for these systems. These systems supported a max of 2MB of RAM. GL2-2.x is the singular OS used by these.

=== IRIS 2000 Turbo ===
The 2300, 2400 and 2500 were later updated with a Turbo board, which used the IP2 68020 CPU at 14MHz and the FP1 floating point accelerator. They supported a max of 16MB RAM.

== IRIS Graphics ==
The IRIS Graphics system uses VLSI Geometry Engines and lacks any support for texturing. Within each GE is:

* 4 Matrix Engines
* 4-6 Clipper Engines
* 2 Scaler Engines

As the product line grew, the basis remained the same, but with more CPUs, more RAM, and more bitplanes and performance as a result.

== IRIS 3000 Series ==
The IRIS 3000 series was the end of the Motorola 68000 line for SGI. All IRIS 3000s use the Motorola 68020 running at 16MHz. The 3010 is the singular terminal system, with the 3020, 3030, 3110, 3115, 3120, and 3130 all being workstations. All use the IP2 processor board which uses a private bus between the CPU, FPU and memory. The 3000 series uses a 10-GE Enhanced IRIS Graphics, which has 10GEs and 8 bitplanes with a max of 12MB for the terminal and 16MB for the workstations.

GL2-3.x is the singular OS used by these. The later IRIS 3100 series uses a slightly enhanced IRIS Graphics boardset with 12 GEs, and a max of 32 bitplanes.

← Older revision		Revision as of 03:38, 19 September 2025
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	[[File:IRIS 3130 Rear.jpg\|alt=Rear of a rebranded IRIS 3130. Courtesy of sgistuff.net\|left\|thumb\|Rear of a rebranded IRIS 3130. Courtesy of sgistuff.net]]		[[File:IRIS 3130 Rear.jpg\|alt=Rear of a rebranded IRIS 3130. Courtesy of sgistuff.net\|left\|thumb\|Rear of a rebranded IRIS 3130. Courtesy of sgistuff.net]]
	GL2-3.x is the singular OS used by these. The later IRIS 3100 series uses a slightly enhanced IRIS Graphics boardset with 12 GEs, and a max of 32 bitplanes.		GL2-3.x is the singular OS used by these. The later IRIS 3100 series uses a slightly enhanced IRIS Graphics boardset with 12 GEs, and a max of 32 bitplanes.

			[[Category: Hardware]]