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Has magnetic core memory been used beyond the Moon?


Did the IBM System/4 Pi computer have radiation-hardened versions for Skylab and Shuttle?Has any probe ever been launched into a highly elliptical orbit with say 20-30 year to orbit the sun?What are the features of microcontrollers used in space?Has an SRB been considered for use in orbit to launch to escape velocity?What's the record for the longest time a deep space craft has functioned without a reboot?Apollo-11 AGC core memory has 5 wires per core (rather than 3 or 4) - why?What's the largest area dish antenna sent beyond the Earth-Moon system?What's up with the “Apollo” computer on the ISS? How is it being used?Bits per core for the different versions of the Apollo guidance computer core rope memory?Has there ever been musical events or performances associated with deep-space spacecraft or their flyby maneuvers?Was Hayabusa-2's plastic explosive charge the largest charge detonated beyond LEO?













4












$begingroup$


@aml's comment under @OrganicMarble's answer to the question Did the IBM System/4 Pi computer have radiation-hardened versions for Skylab and Shuttle? says:




@uhoh- according to wikipedia, the AP-101B used magnetic core memory (because it was fully matured technology in the late 1970's).




I'd only heard of core memory used on spacecraft within the context of the Apollo missions to the Moon. Now that I can read in this archived documentation, (PDF) that core memory was used in flight computers in the following decade, so I'd like to ask:



Question: Has magnetic core memory been used beyond cis-lunar space?




MAIN STORAGE



The TC computer utilizes an 8,192 word by 8 bit destructive readout core memory. The memory has a 2.5 microsecond read-write cycle time. Each cycle consists of a read followed by a write operation. The computer initiates a start memory every three microseconds. The access time of the memory is approximately. 9 usec. A coincident current (3-D) selection scheme is utilized. The memory array requires our memory mats packaging two bits per mat. Operation is possible over the ambient temperature range of -55 C to +l00C.




later:




The main storage array is fabricated from core planes which are a militarized version of planes used on the IBM System/360. Each plane has 16,384 cores. Planes are conformally coated and foam padding is placed between planes for environmental protection of cores.




later still:




Read Only Storage is implemented with a microminiature linear ferrite 7/12 (ID/OD in mils) magnetic core. The basic core plane contains 512 by 70 cores. A core is located where a "1" bit is stored and a core is missing where a "0" bit is stored. Two wires thread each core: one drive winding and one sense winding. Two planes are required for the ROS. Monolithic circuits are used in the decode. driver. detector and latch portion of the ROS.







deep-space flight-computer computer







share|improve this question











$endgroup$







  • 1




    $begingroup$
    An interesting follow-up question would be whether any company still makes core memory. However, probably no SE site would take such a question as on-topic.
    $endgroup$
    – Dr Sheldon
    3 hours ago






  • 3




    $begingroup$
    retrocomputing.se
    $endgroup$
    – Hobbes
    2 hours ago















4












$begingroup$


@aml's comment under @OrganicMarble's answer to the question Did the IBM System/4 Pi computer have radiation-hardened versions for Skylab and Shuttle? says:




@uhoh- according to wikipedia, the AP-101B used magnetic core memory (because it was fully matured technology in the late 1970's).




I'd only heard of core memory used on spacecraft within the context of the Apollo missions to the Moon. Now that I can read in this archived documentation, (PDF) that core memory was used in flight computers in the following decade, so I'd like to ask:



Question: Has magnetic core memory been used beyond cis-lunar space?




MAIN STORAGE



The TC computer utilizes an 8,192 word by 8 bit destructive readout core memory. The memory has a 2.5 microsecond read-write cycle time. Each cycle consists of a read followed by a write operation. The computer initiates a start memory every three microseconds. The access time of the memory is approximately. 9 usec. A coincident current (3-D) selection scheme is utilized. The memory array requires our memory mats packaging two bits per mat. Operation is possible over the ambient temperature range of -55 C to +l00C.




later:




The main storage array is fabricated from core planes which are a militarized version of planes used on the IBM System/360. Each plane has 16,384 cores. Planes are conformally coated and foam padding is placed between planes for environmental protection of cores.




later still:




Read Only Storage is implemented with a microminiature linear ferrite 7/12 (ID/OD in mils) magnetic core. The basic core plane contains 512 by 70 cores. A core is located where a "1" bit is stored and a core is missing where a "0" bit is stored. Two wires thread each core: one drive winding and one sense winding. Two planes are required for the ROS. Monolithic circuits are used in the decode. driver. detector and latch portion of the ROS.







deep-space flight-computer computer







share|improve this question











$endgroup$







  • 1




    $begingroup$
    An interesting follow-up question would be whether any company still makes core memory. However, probably no SE site would take such a question as on-topic.
    $endgroup$
    – Dr Sheldon
    3 hours ago






  • 3




    $begingroup$
    retrocomputing.se
    $endgroup$
    – Hobbes
    2 hours ago













4












4








4





$begingroup$


@aml's comment under @OrganicMarble's answer to the question Did the IBM System/4 Pi computer have radiation-hardened versions for Skylab and Shuttle? says:




@uhoh- according to wikipedia, the AP-101B used magnetic core memory (because it was fully matured technology in the late 1970's).




I'd only heard of core memory used on spacecraft within the context of the Apollo missions to the Moon. Now that I can read in this archived documentation, (PDF) that core memory was used in flight computers in the following decade, so I'd like to ask:



Question: Has magnetic core memory been used beyond cis-lunar space?




MAIN STORAGE



The TC computer utilizes an 8,192 word by 8 bit destructive readout core memory. The memory has a 2.5 microsecond read-write cycle time. Each cycle consists of a read followed by a write operation. The computer initiates a start memory every three microseconds. The access time of the memory is approximately. 9 usec. A coincident current (3-D) selection scheme is utilized. The memory array requires our memory mats packaging two bits per mat. Operation is possible over the ambient temperature range of -55 C to +l00C.




later:




The main storage array is fabricated from core planes which are a militarized version of planes used on the IBM System/360. Each plane has 16,384 cores. Planes are conformally coated and foam padding is placed between planes for environmental protection of cores.




later still:




Read Only Storage is implemented with a microminiature linear ferrite 7/12 (ID/OD in mils) magnetic core. The basic core plane contains 512 by 70 cores. A core is located where a "1" bit is stored and a core is missing where a "0" bit is stored. Two wires thread each core: one drive winding and one sense winding. Two planes are required for the ROS. Monolithic circuits are used in the decode. driver. detector and latch portion of the ROS.







deep-space flight-computer computer







share|improve this question











$endgroup$




@aml's comment under @OrganicMarble's answer to the question Did the IBM System/4 Pi computer have radiation-hardened versions for Skylab and Shuttle? says:




@uhoh- according to wikipedia, the AP-101B used magnetic core memory (because it was fully matured technology in the late 1970's).




I'd only heard of core memory used on spacecraft within the context of the Apollo missions to the Moon. Now that I can read in this archived documentation, (PDF) that core memory was used in flight computers in the following decade, so I'd like to ask:



Question: Has magnetic core memory been used beyond cis-lunar space?




MAIN STORAGE



The TC computer utilizes an 8,192 word by 8 bit destructive readout core memory. The memory has a 2.5 microsecond read-write cycle time. Each cycle consists of a read followed by a write operation. The computer initiates a start memory every three microseconds. The access time of the memory is approximately. 9 usec. A coincident current (3-D) selection scheme is utilized. The memory array requires our memory mats packaging two bits per mat. Operation is possible over the ambient temperature range of -55 C to +l00C.




later:




The main storage array is fabricated from core planes which are a militarized version of planes used on the IBM System/360. Each plane has 16,384 cores. Planes are conformally coated and foam padding is placed between planes for environmental protection of cores.




later still:




Read Only Storage is implemented with a microminiature linear ferrite 7/12 (ID/OD in mils) magnetic core. The basic core plane contains 512 by 70 cores. A core is located where a "1" bit is stored and a core is missing where a "0" bit is stored. Two wires thread each core: one drive winding and one sense winding. Two planes are required for the ROS. Monolithic circuits are used in the decode. driver. detector and latch portion of the ROS.







deep-space flight-computer computer




deep-space flight-computer computer






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 7 hours ago







uhoh

















asked 7 hours ago









uhohuhoh

42.3k19162533




42.3k19162533







  • 1




    $begingroup$
    An interesting follow-up question would be whether any company still makes core memory. However, probably no SE site would take such a question as on-topic.
    $endgroup$
    – Dr Sheldon
    3 hours ago






  • 3




    $begingroup$
    retrocomputing.se
    $endgroup$
    – Hobbes
    2 hours ago












  • 1




    $begingroup$
    An interesting follow-up question would be whether any company still makes core memory. However, probably no SE site would take such a question as on-topic.
    $endgroup$
    – Dr Sheldon
    3 hours ago






  • 3




    $begingroup$
    retrocomputing.se
    $endgroup$
    – Hobbes
    2 hours ago







1




1




$begingroup$
An interesting follow-up question would be whether any company still makes core memory. However, probably no SE site would take such a question as on-topic.
$endgroup$
– Dr Sheldon
3 hours ago




$begingroup$
An interesting follow-up question would be whether any company still makes core memory. However, probably no SE site would take such a question as on-topic.
$endgroup$
– Dr Sheldon
3 hours ago




3




3




$begingroup$
retrocomputing.se
$endgroup$
– Hobbes
2 hours ago




$begingroup$
retrocomputing.se
$endgroup$
– Hobbes
2 hours ago










1 Answer
1






active

oldest

votes


















7












$begingroup$

It has been used all the way to the edge of the solar system:




  • Pioneer 10 and 11 used core memory.


  • Voyager 1 and 2 use plated-wire memory (a variation of core memory).


  • Viking 1 and 2 used plated-wire memory.





share|improve this answer









$endgroup$













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    1 Answer
    1






    active

    oldest

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    active

    oldest

    votes






    active

    oldest

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    7












    $begingroup$

    It has been used all the way to the edge of the solar system:




    • Pioneer 10 and 11 used core memory.


    • Voyager 1 and 2 use plated-wire memory (a variation of core memory).


    • Viking 1 and 2 used plated-wire memory.





    share|improve this answer









    $endgroup$

















      7












      $begingroup$

      It has been used all the way to the edge of the solar system:




      • Pioneer 10 and 11 used core memory.


      • Voyager 1 and 2 use plated-wire memory (a variation of core memory).


      • Viking 1 and 2 used plated-wire memory.





      share|improve this answer









      $endgroup$















        7












        7








        7





        $begingroup$

        It has been used all the way to the edge of the solar system:




        • Pioneer 10 and 11 used core memory.


        • Voyager 1 and 2 use plated-wire memory (a variation of core memory).


        • Viking 1 and 2 used plated-wire memory.





        share|improve this answer









        $endgroup$



        It has been used all the way to the edge of the solar system:




        • Pioneer 10 and 11 used core memory.


        • Voyager 1 and 2 use plated-wire memory (a variation of core memory).


        • Viking 1 and 2 used plated-wire memory.






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 6 hours ago









        HobbesHobbes

        97.8k2275432




        97.8k2275432



























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