【Fujitsu】 FUJITSU M-1800 Model Group

This was a group of ultra-large general-purpose computers from Fujitsu. It was the first model group in FUJITSU's (Note 1) M-1000 Series. The five models in the FUJITSU M-1800 Model Group were announced as upper computers of the existing FACOM M-780 Model Group in September 1990. The FUJITSU M-1800 Model Group had the followingfeatures.

(1)The group achieved the highest speed in the world by realizing the world's first 8 CPU tightly coupled multiprocessor.

• (Performance of the FUJITSU M-1800/85 was about 3 times and FACOM M-780/40

(2)The group could flexibly handle large-scale system construction.

• Main memory capacity: Max. 2 gigabytes, System storage: 8 gigabytes, Max. number of provided channels 256
• Up to a maximum of 224 optical channels could be installed, each having a high-speed data transfer rate of 9 megabytes/second.

(3)The group achieved higher reliability and performance via an SCMP (Note 2) configuration employing system storage.

• Up to a maximum of 16 CPUs could be connected (with the 4 cluster configuration)
• Equipped with ultra high-speed hot standby system

(4)Single-board CPU size was reduced, and space and power savings were achieved by using the latest LSI technology and high-density multi-layer glass-ceramic boards.

(Note 1) "FACOM", which was previously used as the brand name of Fujitsu computers, was changed to "FUJITSU".

(Note 2)System storageCoupledMulti-Processor system

FUJITSU M-1800 Model Group Specifications

		M-1800/20	M-1800/30	M-1800/45	M-1800/65	M-1800/85
Announcement date		September 1990
CPU	Number	2	3	4	6	8
	Main element	ECL LSI with 15,000gates/chip, gate delay time 70ps 64Kbit RAM with 1.6ns access time + 3,500gate RAM and logic LSI
	Buffer storage capacity	128KB/CPU
Main memory	Memory element	1Mbit static RAM
	Capacity	128-1,024MB	256-2,048MB
Max. number of provided channels		128	256
System storage	Capacity	256MB-8GB
	Data transfer speed	Max. 500MB/s
	Options	Battery back-up (24 hours), Duplication mechanism