GB1499162A - Drives for use in secondary storage facilities in digital data processing systems and secondary storage facilities and digital data processing systems incorporating such drives - Google Patents

Drives for use in secondary storage facilities in digital data processing systems and secondary storage facilities and digital data processing systems incorporating such drives

Info

Publication number
GB1499162A
GB1499162A GB11222/75A GB1122275A GB1499162A GB 1499162 A GB1499162 A GB 1499162A GB 11222/75 A GB11222/75 A GB 11222/75A GB 1122275 A GB1122275 A GB 1122275A GB 1499162 A GB1499162 A GB 1499162A
Authority
GB
United Kingdom
Prior art keywords
memory unit
signal
flop
flip
gate
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
Application number
GB11222/75A
Other languages
English (en)
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.)
Digital Equipment Corp
Original Assignee
Digital Equipment Corp
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 Digital Equipment Corp filed Critical Digital Equipment Corp
Publication of GB1499162A publication Critical patent/GB1499162A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • G06F9/4818—Priority circuits therefor
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0766—Error or fault reporting or storing
    • G06F11/0772—Means for error signaling, e.g. using interrupts, exception flags, dedicated error registers

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Quality & Reliability (AREA)
  • Debugging And Monitoring (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Multi Processors (AREA)
  • Bus Control (AREA)
GB11222/75A 1974-04-19 1975-03-18 Drives for use in secondary storage facilities in digital data processing systems and secondary storage facilities and digital data processing systems incorporating such drives Expired GB1499162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US462361A US3911400A (en) 1974-04-19 1974-04-19 Drive condition detecting circuit for secondary storage facilities in data processing systems

Publications (1)

Publication Number Publication Date
GB1499162A true GB1499162A (en) 1978-01-25

Family

ID=23836159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11222/75A Expired GB1499162A (en) 1974-04-19 1975-03-18 Drives for use in secondary storage facilities in digital data processing systems and secondary storage facilities and digital data processing systems incorporating such drives

Country Status (5)

Country Link
US (1) US3911400A (enExample)
JP (1) JPS5815817B2 (enExample)
CA (1) CA1023053A (enExample)
DE (1) DE2517170C2 (enExample)
GB (1) GB1499162A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1052738B (it) * 1975-12-24 1981-07-20 Cselt Centro Studi Lab Telecom Dispositivo per il caricamento automatico della memoria centrale di calcolatori elettronici
US4225917A (en) * 1976-02-05 1980-09-30 Motorola, Inc. Error driven interrupt for polled MPU systems
US4144565A (en) * 1977-01-06 1979-03-13 International Business Machines Corporation Input/output interface connector circuit for repowering and isolation
US4144583A (en) * 1977-06-06 1979-03-13 Digital Equipment Corporation Secondary storage facility with means for monitoring error conditions
US4237533A (en) * 1978-12-28 1980-12-02 International Business Machines Corporation Preventing initial program load failures
WO1983001321A1 (en) * 1981-10-05 1983-04-14 Digital Equipment Corp Secondary storage facility employing serial communications between drive and controller
US4928193A (en) * 1984-07-13 1990-05-22 International Business Machines Corporation Diskette drive type determination
FR2591774B1 (fr) * 1985-11-06 1996-07-12 Canon Kk Systeme de fichier
GB2228111B (en) * 1988-11-26 1992-10-21 Motorola Inc Microcomputer interface arrangement
JPH02284229A (ja) * 1989-04-25 1990-11-21 Nec Corp マイクロプロセッサの状態記憶装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560935A (en) * 1968-03-15 1971-02-02 Burroughs Corp Interrupt apparatus for a modular data processing system
US3566363A (en) * 1968-07-11 1971-02-23 Ibm Processor to processor communication in a multiprocessor computer system
US3710324A (en) * 1970-04-01 1973-01-09 Digital Equipment Corp Data processing system
US3699532A (en) * 1970-04-21 1972-10-17 Singer Co Multiprogramming control for a data handling system
US3840864A (en) * 1971-11-01 1974-10-08 Burroughs Corp Multiple memory unit controller
US3800287A (en) * 1972-06-27 1974-03-26 Honeywell Inf Systems Data processing system having automatic interrupt identification technique
US3820085A (en) * 1973-04-06 1974-06-25 Gte Automatic Electric Lab Inc Communication switching system having separate register subsystem and stored program processor each having its own memory,and data transfer by processor access to the register memory
US3824563A (en) * 1973-04-13 1974-07-16 Ibm Data storage track padding apparatus

Also Published As

Publication number Publication date
DE2517170A1 (de) 1975-11-06
JPS50144347A (enExample) 1975-11-20
CA1023053A (en) 1977-12-20
US3911400A (en) 1975-10-07
JPS5815817B2 (ja) 1983-03-28
DE2517170C2 (de) 1986-11-20

Similar Documents

Publication Publication Date Title
GB1340716A (en) Apparatus for interrogating the availability of a communication path to peripheral device
GB1434827A (en) Data processing system
GB1499162A (en) Drives for use in secondary storage facilities in digital data processing systems and secondary storage facilities and digital data processing systems incorporating such drives
GB1324409A (en) Digital data storage units for use in a digital electric data processing system
GB1492610A (en) Data equipment for the execution of maintenance operations in an information processing system
GB1263742A (en) Data storage control apparatus for a multiprogrammed data processing system
GB1411882A (en) Methods and apparatus for control of data processing systems
GB1093518A (en) Error detection system
JPS5790770A (en) Data backup system
GB1296966A (enExample)
FR2260141A1 (en) Data transfer control for data processor - is used between periodic and non-periodic units employing buffer memory
GB1287657A (en) Apparatus for signalling peripheral unit configuration within computer system
US5734481A (en) Copying apparatus for carrying out a copying operation between an active section and a stand-by section
JPS55163697A (en) Memory device
GB1445663A (en) Data processing system
JPS57130141A (en) Remote supervisory device for power system
GB745614A (en) Improvements in or relating to magnetic data storage systems
JPS5495144A (en) Malfunction detection system in data processing unit
JPS5798200A (en) Processing system for memory access fault
JPS5640957A (en) Magnetic tape control system
GB1139181A (en) Control apparatus in a data processing system
JPS5759259A (en) Diagnosing system of computer
JPS57208615A (en) Writing controlling system of magnetic disk device
JPS57187753A (en) Status recording system for information processing device
JPS57123457A (en) Malfunction detecting system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940318