Six models of the ultra-large FACOM M-780 model group were announced in November 1985 as the first model group in the FACOM M-700 Series, the successor of Fujitsu's FACOM M-300 Series of general-purpose computers. The FACOM M-780 was the world's first computers to achieve a single board CPU. Later the large FACOM M-760 model group, and mid-size FACOM M-730 model group were added, and the FACOM M-700 Series lineup of 19 models was completed in 1987. This series had the following features:
- (1)Wide-range of processing performance
- -With 3 model groups and 19 models, the processing performance ratio within the series was 210
(When the M-700 Series lineup was completed in 1987. The FACOM M-300 Series had a ratio of about 100 with 4 model groups) - -Expansion of maximum main memory capacity (Max. of 4 times that of the FACOM M-300 Series)
- (2)A single board CPU was achieved in all models, together with a superior cost performance ratio, by using state-of-the-art LSI and high-density mounting technology
- -High-speed and high-integration ECL-LSI with 3,000 or 10,000 gates was used in the FACOM M-780 and M-760 model group, and highly integrated CMOS LSI with 20,000 gates was used in the FACOM M-730 model group
- -Printed circuit board named as SSC (Sub System Carrier) enabling high-density mounting for the FACOM M-780 and M-760 model group was newly developed
- SSC for M-780 model group, 49cmx54cm, 42 layers, equipped with a maximum of 336 LSI on both sides
- SSC for M-760 model group, 49cm x 54cm, 24 layers, equipped with a maximum of 143 LSI on a single side
- (3)Space and power savings
- (4)Easy field upgrading within model group
| FACOM M-730 model group |
FACOM M-760 model group |
FACOM M-780 model group |
||
|---|---|---|---|---|
| Announcement date | March 1987 | November 1985 | ||
| Size | Mid-size | Large | Ultra-large | |
| CPU | Maximum number | 4 | 4 | 4 |
| Main elements | 20,000 gates/chip CMOS LSI Delay time 1ns/gate |
3,000/10,000 gates/chip ECL LSI Delay time 180ps/gate (10,000 gates in M-780 only) 16Kbit + 1,200 gates, access time 3.2ns high-speed RAM & logic LSI (used for buffer storage etc.) |
||
| Buffer storage capacity | 16/24/32KB/CPU | 32KB/CPU | 128KB/CPU | |
| Main memory | Memory device | 1Mbit DRAM | 256Kbit static RAM | |
| Maximum memory capacity | 45MB | 256MB | 256MB | |
| Maximum number of channels | 12 | 64 | 64 | |
| Remarks | The following improved computers were also available -FACOM M-730 A Model (announced in October 1988) -FACOM M-740 Model Group (announced in December 1990) |
The FACOM M-770 Model Group (announced in June 1990) was available as an improved computer. | Employed Fujitsu's first conductive fluid cooling | |
(Note) The above specifications are from the time of announcement, and may have been changed due to later improvement.
