A UNIXTM Operating System for the DEC VAX-11/780 Computer*
نویسندگان
چکیده
A UNIX operating system together with a complete user environment has been implemented on the VAX-11/780 computer manufactured by Digital Equipment Corporation. The VAX-11/780 system provides 32-bit addresses and data. It uses the same input/output devices and the PDP-11 family and is controlled through a console computer which can be remotely accessed. Additionally, the VAX-11/780 is priced nearly the same as a PDP-11/70 and executes most programs somewhat faster than a PDP-11/780. This memorandum describes the VAX-11/780 hardware and the UNIX operating system and the C programming language software implementation, records some observations on program portability, and speculates ways in which the operating system overhead can be significantly reduced. The authors conclude that the VAX-11/780 provides and excellent hardware environment for running UNIX and C software.
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