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公开(公告)号:ZA8405185B
公开(公告)日:1985-03-27
申请号:ZA8405185
申请日:1984-07-05
Applicant: IBM
Inventor: KUMMER DAVID ALLEN , WEBB GARY EDWARD
CPC classification number: G06F12/0638
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公开(公告)号:GB2144890A
公开(公告)日:1985-03-13
申请号:GB8416921
申请日:1984-07-03
Applicant: IBM
Inventor: FREEMAN JOSEPH WAYNE , WEBB GARY EDWARD
IPC: G06F3/00 , G06F1/00 , G06F1/18 , G06F1/24 , G06F15/78 , G11C5/00 , H01R13/703 , H01R29/00 , H05K1/02 , H05K1/11
Abstract: Cartridges for a microcomputer have two adjacent edge connectors replaced by a single connector (14) with a projection (29) which passes into the area in which the adjacent connector would normaliy be placed. When the cartridge is inserted or removed from the connector socket (3) in the microcomputer, the projection transiently shorts a pair associated socket contacts (27,28). A fixed potential (for example earth potential) normally applied to the main portion of the edge connector from its associated contact (28) of the pair is therefore transferred to the transiently contacted contact (27) to provide a reset signal for the microprocessor of the microcomputer. Thus, the microprocessor is reset each time a cartridge is inserted or withdrawn.
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公开(公告)号:ZA845251B
公开(公告)日:1985-03-27
申请号:ZA845251
申请日:1984-07-06
Applicant: IBM
Inventor: FREEMAN JOSEPH WAYNE , WEBB GARY EDWARD
IPC: G06F3/00 , G06F1/00 , G06F1/18 , G06F1/24 , G06F15/78 , G11C5/00 , H01R13/703 , H01R29/00 , H05K1/02 , H05K1/11 , G06F , G06K
Abstract: Cartridges for a microcomputer have two adjacent edge connectors replaced by a single connector (14) with a projection (29) which passes into the area in which the adjacent connector would normaliy be placed. When the cartridge is inserted or removed from the connector socket (3) in the microcomputer, the projection transiently shorts a pair associated socket contacts (27,28). A fixed potential (for example earth potential) normally applied to the main portion of the edge connector from its associated contact (28) of the pair is therefore transferred to the transiently contacted contact (27) to provide a reset signal for the microprocessor of the microcomputer. Thus, the microprocessor is reset each time a cartridge is inserted or withdrawn.
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公开(公告)号:ZA845185B
公开(公告)日:1985-03-27
申请号:ZA845185
申请日:1984-07-05
Applicant: IBM
Inventor: KUMMER DAVID ALLEN , WEBB GARY EDWARD
Abstract: A microcomputer system employs internal read-only memory devices (3,4) and external read-only memory devices (41,42) in plug-in cartridges (2). Each cartridge includes jumper links (43.44,45,50,51,52) in leads (31,32,33,34,35,36) from the external memories through the cartridge socket (23) to a memory select unit and jumper links (38,39) in leads from earth through the cartridge socket to enable inputs (E) of the internal memories. By linking selected ones of the jumper links in the cartridge, the external memory can be used as an add-on memory or as a base memory replacing the internal memory.
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公开(公告)号:HK99389A
公开(公告)日:1989-12-22
申请号:HK99389
申请日:1989-12-14
Applicant: IBM
Inventor: FREEMAN JOSEPH WAYNE , WEBB GARY EDWARD
IPC: G06F3/00 , G06F1/00 , G06F1/18 , G06F1/24 , G06F15/78 , G11C5/00 , H01R13/703 , H01R29/00 , H05K1/02 , H05K1/11
Abstract: Cartridges for a microcomputer have two adjacent edge connectors replaced by a single connector (14) with a projection (29) which passes into the area in which the adjacent connector would normaliy be placed. When the cartridge is inserted or removed from the connector socket (3) in the microcomputer, the projection transiently shorts a pair associated socket contacts (27,28). A fixed potential (for example earth potential) normally applied to the main portion of the edge connector from its associated contact (28) of the pair is therefore transferred to the transiently contacted contact (27) to provide a reset signal for the microprocessor of the microcomputer. Thus, the microprocessor is reset each time a cartridge is inserted or withdrawn.
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公开(公告)号:DE3468757D1
公开(公告)日:1988-02-18
申请号:DE3468757
申请日:1984-07-05
Applicant: IBM
Inventor: FREEMAN JOSEPH WAYNE , WEBB GARY EDWARD
IPC: G06F3/00 , G06F1/00 , G06F1/18 , G06F1/24 , G06F15/78 , G11C5/00 , H01R13/703 , H01R29/00 , H05K1/02 , H05K1/11
Abstract: Cartridges for a microcomputer have two adjacent edge connectors replaced by a single connector (14) with a projection (29) which passes into the area in which the adjacent connector would normaliy be placed. When the cartridge is inserted or removed from the connector socket (3) in the microcomputer, the projection transiently shorts a pair associated socket contacts (27,28). A fixed potential (for example earth potential) normally applied to the main portion of the edge connector from its associated contact (28) of the pair is therefore transferred to the transiently contacted contact (27) to provide a reset signal for the microprocessor of the microcomputer. Thus, the microprocessor is reset each time a cartridge is inserted or withdrawn.
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公开(公告)号:BR8403986A
公开(公告)日:1985-07-09
申请号:BR8403986
申请日:1984-08-09
Applicant: IBM
Inventor: FREEMAN JOSEPH WAYNE , WEBB GARY EDWARD
IPC: G06F3/00 , G06F1/00 , G06F1/18 , G06F1/24 , G06F15/78 , G11C5/00 , H01R13/703 , H01R29/00 , H05K1/02 , H05K1/11 , H01R9/09
Abstract: Cartridges for a microcomputer have two adjacent edge connectors replaced by a single connector (14) with a projection (29) which passes into the area in which the adjacent connector would normaliy be placed. When the cartridge is inserted or removed from the connector socket (3) in the microcomputer, the projection transiently shorts a pair associated socket contacts (27,28). A fixed potential (for example earth potential) normally applied to the main portion of the edge connector from its associated contact (28) of the pair is therefore transferred to the transiently contacted contact (27) to provide a reset signal for the microprocessor of the microcomputer. Thus, the microprocessor is reset each time a cartridge is inserted or withdrawn.
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公开(公告)号:ZA8405251B
公开(公告)日:1985-03-27
申请号:ZA8405251
申请日:1984-07-06
Applicant: IBM
Inventor: FREEMAN JOSEPH WAYNE , WEBB GARY EDWARD
IPC: G06F3/00 , G06F1/00 , G06F1/18 , G06F1/24 , G06F15/78 , G11C5/00 , H01R13/703 , H01R29/00 , H05K1/02 , H05K1/11 , G06F , G06K
CPC classification number: H05K1/117 , G06F1/24 , H01R12/721 , H01R13/703 , H01R29/00 , H05K1/0268 , H05K2201/0746 , H05K2201/094
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公开(公告)号:DE3484490D1
公开(公告)日:1991-05-29
申请号:DE3484490
申请日:1984-07-05
Applicant: IBM
Inventor: KUMMER DAVID ALLEN , WEBB GARY EDWARD
Abstract: A microcomputer system employs internal read-only memory devices (3,4) and external read-only memory devices (41,42) in plug-in cartridges (2). Each cartridge includes jumper links (43.44,45,50,51,52) in leads (31,32,33,34,35,36) from the external memories through the cartridge socket (23) to a memory select unit and jumper links (38,39) in leads from earth through the cartridge socket to enable inputs (E) of the internal memories. By linking selected ones of the jumper links in the cartridge, the external memory can be used as an add-on memory or as a base memory replacing the internal memory.
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公开(公告)号:AT63010T
公开(公告)日:1991-05-15
申请号:AT84107804
申请日:1984-07-05
Applicant: IBM
Inventor: KUMMER DAVID ALLEN , WEBB GARY EDWARD
Abstract: A microcomputer system employs internal read-only memory devices (3,4) and external read-only memory devices (41,42) in plug-in cartridges (2). Each cartridge includes jumper links (43.44,45,50,51,52) in leads (31,32,33,34,35,36) from the external memories through the cartridge socket (23) to a memory select unit and jumper links (38,39) in leads from earth through the cartridge socket to enable inputs (E) of the internal memories. By linking selected ones of the jumper links in the cartridge, the external memory can be used as an add-on memory or as a base memory replacing the internal memory.
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