EWS-UX

EWS-UX is a Unix operating system used by NEC Corporation for its EWS4800 [jp] line of engineering workstations.^[1]^[2]^[3] EWS-UX is based largely on versions of Unix System V supplemented with BSD software.^[1]^[4]^[2] It was widely used from the late 1980s to around 2000.

Overview

EWS-UX and the EWS-4800 line of workstations were widely used for CAD / CAM work.^[5]

Early versions of EWS-UX run on Motorola 68000 series CISC processors,^{[citation needed]} while later versions run on MIPS RISC processors.^[6]

NEC attempted to introduce binary compatibility between Unix versions used by DEC, Sony (NEWS-OS), and Sumitomo's Unix (SEIUX). However, DEC dropped out of the agreement to pursue the DEC Alpha architecture.^{[citation needed]}

EWS-UX and UP-UX [jp] (NEC's Unix server OS) became integrated and merged into UX/4800 [jp].^{[citation needed]}

EWS-UX / V: Based on Unix SVR2. It runs on the EWS4800 series equipped with the MC68020, MC68030, and MC68040 processors.
EWS-UX / V (Rel4.0): Based on Unix SVR4. It runs on the EWS4800 series equipped with R3000 (VR3600 [jp]) and R4000 processors.
EWS-UX / V (Rel4.2): Based on Unix SVR4.2. It supports processors such as the R4400, VR4200 [jp], and R4600.
EWS-UX / V (Rel4.2MP): Based on Unix SVR4.2MP. It supports multi-processor systems using the R4400MC. It is mostly similar to UP-UX, NEC's Unix operating system for servers.

1 2 "EWS4800/220, EWS4800/260". IPSJ Computer Museum. Retrieved 23 October 2024.
1 2 "Implementation Status of Electronic Library Service". NACSIS Newsletter. No. 18. September 1998. ISSN 0915-7018. Retrieved 23 October 2024.
↑ Kailey, Judy B.; Himes, Peggy N., eds. (January 1994). "VALIDATED PRODUCTS LIST 1994 No. 1" (PDF). NIST. p. 35. Retrieved 23 October 2024.
↑ van der Steen, Aad J; Dongarra, Jack J (May 1996). Overview of Recent Supercomputers (PDF) (Report) (6th ed.). University of Tennessee Knoxville. pp. 35, 67.
↑ "Mechanical CAD/CAM/CAE worldwide, 1998-1999" (PDF). archive.computerhistory.org. DataQuest. 2 March 1998. p. 27. Retrieved 23 October 2024.
↑ "SEEKING STRENGTH IN NUMBERS AGAINST US ONSLAUGHT, NEC, SONY MAKE MIPS BOXES COMPATIBLE". Tech Monitor. 14 May 1992. Retrieved 23 October 2024.