Boots – shoes – and leggings
Patent
1995-09-14
1996-04-09
Canney, Vincent P.
Boots, shoes, and leggings
3642694, G06F 1100
Patent
active
055069606
ABSTRACT:
A data processing system includes a control computer which controls and monitors a cooling subsystem. The control computer has a non-volatile memory holding two status logs for recording stautus data and fault information. One of the logs is selected as the current log. If a fault condition is detected, the control computer writes fault information into the current log and then, if the other log is unlocked, locks the current log and selects the other log as the current log. In response to a "request locked log" command, the control computer transmits the contents of the locked log. In response to an "unlock" command, the control computer unlocks the locked log and then, if the other log contains fault information, locks that other log. The system thus provides an efficient mechanism for ensuring that the fault information is maintained, even through system powerdown.
REFERENCES:
Operating System Concepts, Fourth Edition by Abraham Silberschatz et al. .COPYRGT.1994 by Addison-Wesley Publishing Co. Inc. pp. 349-354.
Modern Operating Systems by Andrew S. Tanenbaum .COPYRGT.1992 by Prentice-Hill Inc. pp. 145, 146.
Lister, "Fundamentals of Operating Systems", Macmillan Press, 1979, pp. 102-106.
Marinescu, "Inter-process Communication in MUS/XA (etc.)", Software Practice and Experience, vol. 16, No. 5, May 1986, pp. 489-501.
Hatakeyama, "Numerical Information Environment and its application (ets.)" Proceeding of 11th Annual International Software and Applications Conference, 7 Oct. 1987, pp. 65-74.
Canney Vincent P.
International Computers Limited
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