The ultra-large general-purpose computers FACOM M-380 and FACOM M-382 (referred to generically as the M-380 model group) were announced in May 1981 as the first models in the FACOM M-300 Series -- successor of Fujitsu's general-purpose FACOM M-100 Series. Later, lower end models in the FACOM M-380 model group were added, and the mid-size FACOM M-310/320 and FACOM M-340 model groups and the large FACOM M-360 model groups were announced, and thus the FACOM M-300 Series lineup was completed (in 1983) as successor of the FACOM M-100 Series. This Series had the following features:
- (1)It employed the latest technology to improve the cost performance ratio.
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- The large computers employed a maximum of 1300 or 400 gates per chip, ultra-high speed ECL LSI with a gate delay time of 350ps, and high-density mounting technology (MCCs (Multi-Chip Carriers) enabling high-density mounting of 121 LSI and RAM, and a 50cm deep 3D stack structure for shortening wiring between LSI.)
- The mid-size computers employed a maximum of 2000 gates per chip, and high-speed, highly integrated TTL LSI with a gate delay time of 1.5ns.
- The FACOM M-382 achieved performance 3.8-4.5 times that of the FACOM M-200 by using innovations like a high-speed branch mechanism.
- (2)The large computers (FACOM M-360/380) supported 31-bit logical addresses, and expanded the virtual space from the previous 16 megabytes to 2 gigabytes.
- (3) Power savings were achieved by employing highly integrated LSI, and with the FACOM M-310 and M-320 it became possible, for the first time, to install a general-purpose computers in the office environment. (Further space saving was achieved with the enhanced models FACOM M-310E, M-320E and M-330E).
- (4) Component count was reduced by using highly integrated LSI, and reliability was improved with more comprehensive RAS capability.
- (5) Easier field upgrading was achieved. (Upgrading to higher-level models within the model group at the installed site)
| FACOM M-310, M-320 |
FACOM M-340 model group |
FACOM M-360 model group |
FACOM M-380model group |
||
|---|---|---|---|---|---|
| Announcement date | June 1982 | February 1983 | June 1982 | May 1981 | |
| size | Mid-size | Large | Ultra-large | ||
| CPU | Maximum number | 1 | 1 | 2 | 2 |
| Main elements | 2,000 gates/chip TTL LSI Delay time 1.5ns/gate |
|
|||
| Buffer storage capacity | - | -/16/32/60KB | 32KB/CPU | Local buffer storage 16/32/64KB/CPU Global buffer storage 128/256KB |
|
| Main memory | Memory element | 64Kbit/chip MOS-LSI | |||
| Maximum memory capacity | M-320:6MB M-310:4MB |
16MB (Max. 12MB with M-340R) |
M-360MP: 48MB Othesrs: 24MB |
M-382:128MB Othesrs:64MB |
|
| Maximum number of provided channels | 6 | 8 (6 for M-340R) | M-360MP: 24 Other: 12 |
64 | |
(Note) The above specifications are from the time of announcement, and may have been changed due to later improvement.
