This was Panafacom's (currently PFU) successor to the PANAFACOM U-100 Series 16-bit minicomputer. In July 1978, Panafacom announced 3 models, developed by enhancing the capabilities and improving the price performance of the PANAFACOM U-100 Series: the PANAFACOM U-1100 (successor of the U-100), U-1300 (successor of the U-200 and U-300) and U-1500 (successor of the U-400). The model line-up was filled out later by adding the PANAFACOM U-1200, U-1400, U-1200II and U-1500II. This PANAFACOM U-1000 Series had 4C capability, for communication control (Communication), industrial control (Control), data processing (Computation) and interactive TSS (Conversation), and rivaled even mid-size general-purpose computers. The PANAFACOM U-1200 and U-1200II came in both a rack-mount type and a desk-side type to handle a wide range of users. In February of 1981, the PANAFACOM U-100 Series and PANAFACOM U-1000 Series exceeded a combined cumulative total of 10,000 shipped units -- the highest number of deliveries in Japan for a minicomputer.
The UNICUS OS (based on UNIX SYSTEM III) was added (it was announced in August of 1983). At that time, UNIX was not generally recognized, but Panafacom took the lead over other companies, by responding to the open architecture trend with 16-bit minicomputers. This developed into a standard UNIX OS in the successor PANAFACOM A (Ace) Series of 32-bit minicomputers.
| U-1100 | U-1200 Figures in paren- theses are for U-1200 II |
U-1300 | U-1400 | U-1500 Figures in paren- theses are for U-1500 II |
||
|---|---|---|---|---|---|---|
| Announcement date | July 1978 | July 1982 (September 1984) | July 1978 | July 1980 | July 1978 (August 1983) | |
| Main memory | Memory element | Magnetic core, IC memory | IC memory | Magnetic core, IC memory | IC memory | |
| Word length | 16bit + 2 parity | 16bit+ 6ECCbit |
16bit + 2 parity | 16bit+ 6ECCbit |
32bit+ 7ECCbit |
|
| Cycle time | Magnetic core 1.5µs., IC memory 0.7µs. | 0.45µs | Magnetic core0.75µs. IC memory0.5µs. |
0.45µs | 0.4µs/4B | |
| Memory capacity | 32- 64KB |
256KB- 1MB (512KB- 2MB) |
32- 64KB |
128- 512KB |
256KB- 2MB |
|
| Memory protection | - | Standard (access control, mode control) | Standard (1KB units) | Standard (access control, mode control) | ||
| Arit- hmetic control |
Archi- tecture |
16-bit CPU, proprietary architecture | ||||
| Number of instru- ctions |
90 | 193 (including options) | 104 (including options) | 224 (including options) | ||
| Floating point operations | - | optional | ||||
| Decimal operations | - | optional | - | optional | ||
| Interrupt levels | Internal 2, External 4 | Internal 3, External 8, Special external | ||||
| Fixed point addition/ subtr- action speed |
2.8µs | 1.0µs (0.7µs) |
0.8µs | 0.8µs | 0.45µs | |
