GB2252184B - A data processing system - Google Patents

A data processing system

Info

Publication number
GB2252184B
GB2252184B GB9101541A GB9101541A GB2252184B GB 2252184 B GB2252184 B GB 2252184B GB 9101541 A GB9101541 A GB 9101541A GB 9101541 A GB9101541 A GB 9101541A GB 2252184 B GB2252184 B GB 2252184B
Authority
GB
United Kingdom
Prior art keywords
file server
microcomputer
data
additional data
server
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9101541A
Other versions
GB9101541D0 (en
GB2252184A (en
Inventor
David Algeo
Robert Semple
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILPAT Co
Original Assignee
WILPAT Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WILPAT Co filed Critical WILPAT Co
Publication of GB9101541D0 publication Critical patent/GB9101541D0/en
Publication of GB2252184A publication Critical patent/GB2252184A/en
Application granted granted Critical
Publication of GB2252184B publication Critical patent/GB2252184B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)
  • Multi Processors (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

A data processing system includes microcomputers 3, a host computer 5 with an associated modem bank 6 and file servers 10 connected in a token ring network 2. Generation and communication of documents is carried out by retrieval of programs from a general file server 10(a) and message and knowledge databases are set up in a communications file microcomputer 3 creates a record of all additional data stored server 10(b). To ensure that data is not lost, each in the fixed disk during a back-up period. Each general file server 10(a) includes a control circuit 12 arranged to poll each microcomputer 3 to retrieve additional data not already stored in the general file server 10(a), and at the end of each backup period each microcomputer 3 downloads additional data to a security file server 10(c) for transmission to a back-up tape drive 15. Each file server has an uninterruptible a power supply and writes data in parallel to a pair of disk drives. A network monitoring circuit 8 monitors errors in transmission of tokens which are not received. <IMAGE>
GB9101541A 1991-02-14 1991-01-24 A data processing system Expired - Fee Related GB2252184B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9100137A BE1002756A6 (en) 1991-02-14 1991-02-14 DATA PROCESSING SYSTEM.

Publications (3)

Publication Number Publication Date
GB9101541D0 GB9101541D0 (en) 1991-03-06
GB2252184A GB2252184A (en) 1992-07-29
GB2252184B true GB2252184B (en) 1994-09-14

Family

ID=3885336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9101541A Expired - Fee Related GB2252184B (en) 1991-02-14 1991-01-24 A data processing system

Country Status (2)

Country Link
BE (1) BE1002756A6 (en)
GB (1) GB2252184B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107222883A (en) * 2017-07-12 2017-09-29 锐捷网络股份有限公司 Wireless controller backup method, backup handover method, apparatus and system

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285153A (en) * 1993-12-23 1995-06-28 Carrickwalk Limited Backup arrangement for data processing apparatus
US8010405B1 (en) 2002-07-26 2011-08-30 Visa Usa Inc. Multi-application smart card device software solution for smart cardholder reward selection and redemption
US7121456B2 (en) 2002-09-13 2006-10-17 Visa U.S.A. Inc. Method and system for managing token image replacement
US8626577B2 (en) 2002-09-13 2014-01-07 Visa U.S.A Network centric loyalty system
US8015060B2 (en) 2002-09-13 2011-09-06 Visa Usa, Inc. Method and system for managing limited use coupon and coupon prioritization
US9852437B2 (en) 2002-09-13 2017-12-26 Visa U.S.A. Inc. Opt-in/opt-out in loyalty system
US7827077B2 (en) 2003-05-02 2010-11-02 Visa U.S.A. Inc. Method and apparatus for management of electronic receipts on portable devices
US8554610B1 (en) 2003-08-29 2013-10-08 Visa U.S.A. Inc. Method and system for providing reward status
US7104446B2 (en) 2003-09-03 2006-09-12 Visa U.S.A., Inc. Method, system and portable consumer device using wildcard values
US7051923B2 (en) 2003-09-12 2006-05-30 Visa U.S.A., Inc. Method and system for providing interactive cardholder rewards image replacement
US8407083B2 (en) 2003-09-30 2013-03-26 Visa U.S.A., Inc. Method and system for managing reward reversal after posting
US8005763B2 (en) 2003-09-30 2011-08-23 Visa U.S.A. Inc. Method and system for providing a distributed adaptive rules based dynamic pricing system
US7653602B2 (en) 2003-11-06 2010-01-26 Visa U.S.A. Inc. Centralized electronic commerce card transactions
US7992781B2 (en) 2009-12-16 2011-08-09 Visa International Service Association Merchant alerts incorporating receipt data
US8429048B2 (en) 2009-12-28 2013-04-23 Visa International Service Association System and method for processing payment transaction receipts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107222883A (en) * 2017-07-12 2017-09-29 锐捷网络股份有限公司 Wireless controller backup method, backup handover method, apparatus and system
CN107222883B (en) * 2017-07-12 2020-06-16 锐捷网络股份有限公司 Wireless controller backup method, backup switching method, device and system

Also Published As

Publication number Publication date
GB9101541D0 (en) 1991-03-06
GB2252184A (en) 1992-07-29
BE1002756A6 (en) 1991-05-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960124