Universal Time-Sharing System

Universal Timesharing System

Company / developer	Xerox Data Systems
Programmed in	Assembly Language(Meta Symbol)
OS family	Not Applicable
Working state	Discontinued
Source model	Unknown
Initial release	1966
Latest stable release	D00 / Q1, 1973
Supported platforms	Xerox Data Systems Sigma 6, Sigma 7, Sigma 9
Default user interface	Text user interface
License	Unknown

1 UTS
2 CP-V
3 CP-R
4 CP-6
5 Software
6 References
7 External links

UTS

The Universal Time-Sharing System (UTS) was an operating system for the XDS Sigma line of computers, succeeding BTM/BPM. UTS was announced in 1966, but because of delays did not actually ship until 1971. It was designed to provide multi-programming services for online (interactive) user programs in addition to batch-mode production jobs, symbiont (spooled) I/O, and critical real-time processes. System Daemons, called "ghost jobs" were used to run monitor code in user space. The final release, D00, shipped in January, 1973. It was succeeded by the CP-V operating system, which combined UTS with the heavily batch-oriented XOS.

CP-V

The CP-V operating system, the compatible successor to UTS, was released in August, 1973.^[1] CP-V supported the same CPUs as UTS plus the Xerox 560. CP-V offered "single-stream and multiprogrammed batch; timesharing; and the remote processing mode, including intelligent remote batch." Realtime processing was added in release B00 in April, 1974, and transaction processing in release C00 in November, 1974.^[2] ^[3]

CP-R

CP-R (Control Program for Real-Time) was a realtime variant of CP-V for Xerox 550 and Sigma 9 computer systems. CP-R supported three types of tasks: Foreground Primary Tasks, Foreground Secondary Tasks, and Batch Tasks.

CP-6

In 1975 Xerox sold its computer business to Honeywell, who ported CP-V to their 6000 computer line and renamed it CP-6.^[4] CP-6 was discontinued in 1988.^[5]

Software

CP-V Software as of release B00, 1974.^[6]

Bundled Software

TEL - Terminal Executive Language.
EASY - Simple interactive environment for FORTRAN and BASIC programs and data files.
CCL - Control Command Interpreter. The batch counterpart of TEL.
BATCH - Submit jobstream to batch queue.
PCL - Peripheral Conversion Language (pronounced "pickle"). Data file device to device copy.
EDIT - Line Editor.
LINK - One-pass linking loader.
LOAD - Two-pass overlay loader.
DELTA - Instruction-level debugger.
SORT/MERGE.
Extended FORTRAN IV.
FDP - FORTRAN Debug Package.
META-SYMBOL - Macro assembler.
BASIC.
FLAG - Load-and-go FORTRAN compatible with IBM Fortran-H.
ANS COBOL.
COBOL On-Line debugger.
APL.
SL-1 - Simulation Language.
IBM 1400 Series Simulator.
SYSGEN - System Generation.
DEFCOM - Export external definitions from a load module.
SYMCON - Manipulate symbols in a load module.
ANALYZE - System dump analyzer.

Separately Priced Software

MANAGE - A generalized file management and reporting tool.
EDMS - Database Management System.
GPDS - General Purpose Discrete Simulator.
CIRC - Electronic Circuit Analysis.

Contributed Software

Xerox maintained a library of other Xerox and user-written software from the EXCHANGE user group. ^[7]

References

^ Xerox Data Systems internal memo. "Features Added to CP-V by Release". http://www.bitsavers.org/pdf/sds/sigma/cp-v/memos/Features_Added_By_Release_May75.pdf. Retrieved 2011-10-16.
^ Xerox Data Systems internal memo. "History, Size, and Scope of CP-V". http://www.bitsavers.org/pdf/sds/sigma/cp-v/memos/CP-V_History_Oct75.pdf. Retrieved 2011-10-16.
^ Xerox Data Systems internal memo. "CP-V Design". http://www.bitsavers.org/pdf/sds/sigma/cp-v/memos/CP-V_Design_May74.pdf. Retrieved 2011-10-16.
^ Multicians.org. "Multics Glossary -C- (CP-6)". http://www.multicians.org/mgc.html. Retrieved 2011-10-16.
^ Digital Equipment Corporation. "Competitive Update 7(7). Jan 25, 1988". http://www.bitsavers.org/pdf/dec/competitiveAnalysis/competitiveUpdate/880125_Honeywell_Bull.pdf. Retrieved 2011-10-16.
^ Xerox Data Systems. "Xerox Control Program-Five System Management Reference Manual". http://www.bitsavers.org/pdf/sds/sigma/cp-v/901674F_CP-V_B00_System_Management_Ref_Mar74.pdf. Retrieved 2011-12-20.
^ Xerox Data Systems. "Xerox Program Availability List". http://www.bitsavers.org/pdf/sds/Xerox_Program_Availability_List_May75.pdf. Retrieved 2011-12-20.