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.
- 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)
|Announcement date||June 1982||February 1983||June 1982||May 1981|
|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
|Main memory||Memory element||64Kbit/chip MOS-LSI|
|Maximum memory capacity||M-320:6MB
(Max. 12MB with M-340R)
|Maximum number of provided channels||6||8 (6 for M-340R)||M-360MP: 24
(Note) The above specifications are from the time of announcement, and may have been changed due to later improvement.