Omron LUNA88K

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Overview

Omron sold a line of m88k-based workstations on which the MACH operating system ran on, which includes the CMU's original m88k-port and Omron's own MACH-based UniOS. These computers were distributed almost exclusively in Japan and are very hard to come by. The LUNA88K was Omron's original m88k-based offering after which the sucessor LUNA88K² came.

LUNA88K

• Two available models: DT8840 and DT8860
• SMP-capable
• 1-4 25MHz 88100 CPUs
• 2 88200 CMMUs per CPU
• 16KB/16KB external I/D L1 cache
• 16MB RAM on DT8840
• 32/64MB RAM on DT8860
• Expansion via one NEC PC-98 slot
• Storage-I/O: MB89352 SCSI controller
• Ethernet: 10Mb/s AMD LANCE interface
• External ports: two RS232C, Floppy, SCSI, parallel, Ethernet (AUI/BNC), keyboard/mouse
• Optional bitmap board: 2048x1024px, either 1 or 4-plane

LUNA88K²

• DT9581
• SMP-capable
• 1-4 33MHz 88100 CPUs
• 2 88200 CMMUs per CPU
• 16KB/16KB external I/D L1 cache
• 112MB RAM maximum
• Expansion via two NEC PC-98 slot
• Storage-I/O: MB89352 SCSI controller
• Ethernet: 10Mb/s AMD LANCE interface
• External ports: three RS232C, Floppy, SCSI, parallel, Ethernet (AUI/BNC), keyboard/mouse, optional second Ethernet interface, optional GPIB interface
• Optional bitmap board: 2048x1024px, either 1, 4 or 8-plane

Operating Systems

• CMU MACH 2.5
• Omron UniOS
• OpenBSD/luna88k

Pictures:

• LUNA88K photos:
  • front (G model)
  • front
  • inside
  • back
  • keyboard/mouse
  • logo
  • cpu module
  • mainboard
  • boot screen
  • mach startup
  (with permission from/Copyright Yukio Igarashi).
• LUNA88K² photos:
  • complete
  • front
  • inside
  • cpu
  • back
  • boot screen
  (with permission from/Copyright Kenji Aoyama).

References:

• LUNA-88K2 is still running
• OMRON LUNA88K Photos (in Japanese)
• LUNA 88K page in WorkStation Museum

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