NOS/VE

NOS/VE (Network Operating System / Virtual Environment) was an operating system with time-sharing capabilities, written by Control Data Corporation in the 1980s. It is a virtual memory operating system, employing the 64-bit virtual mode of the CDC Cyber 180 series computers. NOS/VE replaced the earlier NOS operating system of the 1970s.

Commands

All NOS/VE commands have the form verb{_adjective}_noun. These commands are abbreviated with the first three characters of verb followed by the first character(s) of all further words.

Inspired by addressing structure-members in various programming languages, the catalog separator is the dot.

Subsystems like FTP integrate into the command shell. They change the prompt and add commands like get_file. Thereby statements like flow-control stay the same and subsystems can be mixed in procedures (scripts).

Parameters

Commands could take parameters such as the create_connection command:

would connect you to IP address 10.1.2.3 with telnet service.

See also

NOS

NOS may refer to:

Businesses and organisations

Geography

Science and technology

UNOS (operating system)

UNOS was the first 32-bit Unix-like real-time operating system (RTOS) with real-time extensions. It was developed by Jeffery Goldberg, PhD. who left Bell Labs after using Unix and became VP of engineering for Charles River Data Systems (CRDS), now defunct. UNOS was written to capitalize on the first 32-bit microprocessor, the Motorola 68k central processing unit (CPU). CRDS sold a UNOS based 68K system, and sold porting services and licenses to other manufacturers who had embedded CPUs.

History

Jeff Goldberg created an experimental OS using only eventcounts for synchronization, that allowed a preemptive kernel, for a Charles River Data Systems (CRDS) PDP-11. CRDS hired Goldberg to create UNOS and began selling it in 1981.

UNOS was written for the Motorola 68000 series processors. While compatible with Version 7 Unix, it is also an RTOS. CRDS supported it on the company's Universe 68 computers, as did Motorola's Versabus systems. CRDS's primary market was OEMs embedding the CRDS unit within a larger pile of hardware, often requiring better real-time response than Unix could deliver.

NOS (software)

NOS (Network Operating System) was an operating system with time-sharing capabilities, written by Control Data Corporation in the 1970s.

NOS ran on the 60-bit CDC 6000 series of mainframe computers and their successors. NOS replaced the earlier CDC Kronos operating system of the 1970s. NOS was intended to be the sole operating system for all CDC machines, a fact CDC promoted heavily. NOS was replaced with NOS/VE on the 64-bit Cyber-180 systems in the mid-1980s.

See also

References