In May 1990, NEC announced NEC Superstation EWS4800/220 (desktop type) and NEC Superstation EWS4800/260 (floor type), equipped the R3000 RISC microprocessor from MIPS Computer Systems (USA). The world's highest integer operation speed for a desk-top was achieved by equipping the EWS4800/220 with the R3000 (which had a clock frequency of 30megahertz). These machines also had a high-speed drawing mechanism as standard equipment, and a drawing capability of 400,000 short vectors per second, and they were marketed as workstations suitable for use in a wide-range of fields requiring high-speed processing, such as computer-aided engineering, artificial intelligence image processing and dealing.
The EWS4800/220 and 260 were the first machines in Japan to be equipped with an OS conforming to UNIX System V Release 4.0.
| 220 | 260 | |
|---|---|---|
| Announcement date | May 1990 | |
| CPU | R3000(30MHz) | R3000(33MHz) |
| Floating point processor | R3010(30MHz) | R3010(33MHz) |
| Performance | 30MIPS | 33MIPS |
| Memory capacity | Max. 32MB | Max. 384MB |
| Cache memory | 64KB (instruction) + 64KB (data) | |
| Resolution | 1,280x1,024 | |
| Display color | 256 colors | 256 colors (Standard) |
| 16.7 million colors (Optional) | ||
| Graphics accelerator | Standard | Optional |
| Expansion slots | 2 | 7 |
| OS | EWS-UX/V§iUNIX System V R4.0§j | |
