This was the generic name for products in the higher end group of the "A (Ace) Series" of 32-bit super minicomputers from Fujitsu and Panafacom (currently PFU). This group started with 4 models announced in April 1987 -- the A-300, A-400, A-500 and A-600 -- and also included the top-end A-700 machine, and the A-300II and A-400II with enhanced performance.
The Super A models were released under two brands: FACOM (the Fujitsu brand), and PFU (the Panafacom brand). The FACOM brand was changed to FUJITSU after April 1990.
| A- 300 |
A- 400 |
A- 500 |
A- 600 |
A- 700 |
A- 300II |
A- 400II |
|||
|---|---|---|---|---|---|---|---|---|---|
| Announcement date | April 1987 | May 1988 | May 1989 | ||||||
| CPU | Archi- tecture |
Minicomputer functionality added to M Series Architecture | |||||||
| Main logic element | 20,000gate/chip CMOS LSI | 3,000gate/chip ECL LSI | 20,000gate/chip CMOS LSI | ||||||
| Cache memory | 24KB | 32KB | Local cache 32KB, Global cache 1MB |
24KB | 32KB | ||||
| High-speed arithmetic processing mechanism | Optional (Floating point arithmetic speedup mechanism) | ||||||||
| Main memory | Memory element | 1Mbit DRAM | |||||||
| Memory capacity | 7-31MB | 15-63MB | 15-95MB | 11-31MB | 15-63MB | ||||
| Error checking | ECC (1bit automatic error correction, 2bit error detection) | ||||||||
| Bus support | FSbus 6MB/sx1 | FSbus 6MB/sx2 | FSbus 6MB/sx1 | FSbus 6MB/sx2 | |||||
| OS | X/UTS (UNIX System V), OVIS/S (OS with affinity to the M-Series) | ||||||||
(Note) The above specifications are from the time of announcement, and may have been changed due to later improvement.
