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    11.
    发明专利
    未知

    公开(公告)号：DE69023701T2

    公开(公告)日：1996-06-20

    申请号：DE69023701

    申请日：1990-05-31

    Applicant: IBM

    Inventor： MCNEILL ANDREW BOYCE ,  NEWSOM THOMAS HAROLD ,  OSBORN NEAL ALLEN ,  REID EDDIE MILLER

    IPC: G06F3/00 ,  G06F13/40 ,  G06F15/00 ,  H01R9/00 ,  H01R29/00

    Abstract: A plug-in feature board (10) for a computer system has special circuitry to permit the board to customise itself to the particular slot into which it is inserted. Computers of the type intended for individual use or use in small networks typically provide insertion slots including connectors to permit feature boards to be added and connected to a bus of the computer for adding new function or capacity. As the computing power of such systems has increased there have been increases in the size of portions of the connecting bus to permit improvements in data transfer performance. In a given computer system there are often two or more bus connector (32) configurations presented in respective slots. By so converting electrical states at selected connector positions as to provide signal information for determining bus configuration for the slot, special logic provided on the board is enabled to determine the characteristics of the slot in which the board is placed and customises the board to respond or limit response in accordance with the requirements for that configuration. By so adapting to the slot the board achieves enhanced applicability and avoids certain system disabling malfunctions which can occur when a board is plugged into a slot for which it is not configured.

    APPARATUS AND METHOD FOR PREVENTING UNAUTHORIZED MODIFICATION TO BIOS IN A PERSONAL COMPUTER SYSTEM
    12.
    发明专利
    APPARATUS AND METHOD FOR PREVENTING UNAUTHORIZED MODIFICATION TO BIOS IN A PERSONAL COMPUTER SYSTEM 未知

    公开(公告)号：CA2020520C

    公开(公告)日：1995-08-15

    申请号：CA2020520

    申请日：1990-07-05

    Applicant: IBM

    Inventor： BEALKOWSKI RICHARD ,  BLACKLEDGE JOHN WILEY JR ,  CRONK DOYLE STANFILL ,  DAYAN RICHARD ALAN ,  KINNEAR SCOTT GERARD ,  KOVACH GEORGE D ,  PALKA MATTHEW STEPHEN JR ,  SACHSENMAIER ROBERT ,  ZYVOLOSKI KEVIN MARSHALL ,  WACHTEL EDWARD IRVING ,  DIXON JERRY DUANE ,  MCNEILL ANDREW BOYCE

    IPC: G06F13/10 ,  G06F9/445 ,  G06F12/14 ,  G06F21/22 ,  G06F12/16 ,  G06F12/06

    Abstract: An apparatus and method for protecting BIOS stored on a direct access storage device into a personal computer system. The personal computer system comprises a system processor, a system planar, a random access main memory, a read only memory, a protection means and at least one direct access storage device. The read only memory includes a first portion of BIOS and data representing the type of system processor and system planar I/O configuration. The first portion of BIOS initializes the system and the direct access storage device, and resets the protection means in order to read in a master boot record into the random access memory from a protectable partition on the direct access storage device. The master boot record includes a data segment and an executable code segment. The data segment includes data representing system hardware and a system configuration which is supported by the master boot record. The first BIOS portion confirms the master boot record is compatible with the system hardware by verifying that the data from the data segment of the master boot record agrees with the system processor, system planar, and planar I/O configuration. If the master boot record is compatible with the system hardware, the first BIOS portion vectors the system processor to execute the executable code segment of the master boot record. The executable code segment confirms that the system configuration has not changed and loads in the remaining BIOS portion from the same protectable partition on the direct access storage device into random access memory. The executable code segment then verifies the authenticity of the remaining BIOS portion and vectors the system processor to begin executing the BIOS now in random access memory. BIOS, executing in random access memory, then activates the protection means to prevent further access to the protectable partition. BIOS boots up the operating system to begin operation of the personal computer system.

    EXPANDER CARD TO A COMPUTER
    13.
    发明专利
    EXPANDER CARD TO A COMPUTER 未知

    公开(公告)号：HUT57921A

    公开(公告)日：1991-12-30

    申请号：HU380190

    申请日：1990-06-11

    Applicant: IBM

    Inventor： MCNEILL ANDREW BOYCE ,  NEWSOM THOMAS HAROLD ,  OSBORN NEAL ALLEN ,  REID EDDIE MILLER

    IPC: G06F13/40 ,  G06F15/00 ,  G06F3/00 ,  H01R9/00 ,  H01R29/00 ,  G06F11/00 ,  G06F15/76

    Abstract: A plug-in feature board (10) for a computer system has special circuitry to permit the board to customise itself to the particular slot into which it is inserted. Computers of the type intended for individual use or use in small networks typically provide insertion slots including connectors to permit feature boards to be added and connected to a bus of the computer for adding new function or capacity. As the computing power of such systems has increased there have been increases in the size of portions of the connecting bus to permit improvements in data transfer performance. In a given computer system there are often two or more bus connector (32) configurations presented in respective slots. By so converting electrical states at selected connector positions as to provide signal information for determining bus configuration for the slot, special logic provided on the board is enabled to determine the characteristics of the slot in which the board is placed and customises the board to respond or limit response in accordance with the requirements for that configuration. By so adapting to the slot the board achieves enhanced applicability and avoids certain system disabling malfunctions which can occur when a board is plugged into a slot for which it is not configured.

    COMMAND DELIVERY FOR A COMPUTING SYSTEM
    16.
    发明专利
    COMMAND DELIVERY FOR A COMPUTING SYSTEM 未知

    公开(公告)号：AU630699B2

    公开(公告)日：1992-11-05

    申请号：AU5597890

    申请日：1990-05-25

    Applicant: IBM

    Inventor： BONEVENTO FRANCIS MICHAEL ,  CHISHOLM DOUGLAS RODERICK ,  DODDS SAMMY DAVIS ,  DESAI DHRUVKUMAR M ,  MANDESE ERNEST NELSON ,  MCNEILL ANDREW BOYCE ,  MENDELSON RICHARD NEIL

    IPC: G06F13/12 ,  G06F13/10 ,  G06F15/16

    Abstract: A Command interface includes ports for transferring information between a host processor and at least one intelligent subsystem which may have attached devices. A Command Interface port receives either a direct command or an indirect command from the host processor, which commands are indicative of a type of operation to be performed by the one subsystem or an attached device. An Attention port receives a code from the host processor which is indicative of which one of the direct command or the indirect command is received at the Command Interface port, and which is also indicative of which of the one intelligent subsystem or a device is to execute the command. A command busy/status port receives a code from the one intelligent subsystem which is indicative of whether or not the Command Interface port and the Attention port are busy, and whether or not the one intelligent subsystem is accepting or rejecting commands. The host processor can read this port without altering or updating the code.

    FUNCTIONAL BOARD OF A COMPUTER
    17.
    发明专利
    FUNCTIONAL BOARD OF A COMPUTER 未知

    公开(公告)号：PL285595A1

    公开(公告)日：1991-04-08

    申请号：PL28559590

    申请日：1990-06-12

    Applicant: IBM

    Inventor： MCNEILL ANDREW BOYCE ,  NEWSOM THOMAS HAROLD ,  OSBORN NEAL ALLEN ,  REID EDDIE MILLER

    IPC: G06F13/40 ,  G06F3/00 ,  G06F15/00 ,  H01R9/00 ,  H01R29/00 ,  G06F13/00

    Abstract: A plug-in feature board (10) for a computer system has special circuitry to permit the board to customise itself to the particular slot into which it is inserted. Computers of the type intended for individual use or use in small networks typically provide insertion slots including connectors to permit feature boards to be added and connected to a bus of the computer for adding new function or capacity. As the computing power of such systems has increased there have been increases in the size of portions of the connecting bus to permit improvements in data transfer performance. In a given computer system there are often two or more bus connector (32) configurations presented in respective slots. By so converting electrical states at selected connector positions as to provide signal information for determining bus configuration for the slot, special logic provided on the board is enabled to determine the characteristics of the slot in which the board is placed and customises the board to respond or limit response in accordance with the requirements for that configuration. By so adapting to the slot the board achieves enhanced applicability and avoids certain system disabling malfunctions which can occur when a board is plugged into a slot for which it is not configured.

    19.
    发明专利
    未知

    公开(公告)号：DE4026912A1

    公开(公告)日：1991-02-28

    申请号：DE4026912

    申请日：1990-08-25

    Applicant: IBM

    Inventor： BEALKOWSKI RICHARD ,  BLACKLEDGE JUN JOHN WILEY ,  CRONK DOYLE STANFILL ,  DAYAN RICHARD ALAN ,  KINNEAR SCOTT GERARD ,  KOVACH GEORGE D ,  PALKA JUN MATTHEW STEPHEN ,  SACHSENMAIER ROBERT ,  ZYVOLOSKI KEVIN MARSHALL ,  DIXON JERRY DUANE ,  MCNEILL ANDREW BOYCE ,  WACHTEL EDWARD IRVING

    IPC: G06F13/10 ,  G06F9/445 ,  G06F12/14 ,  G06F21/22

    Abstract: An apparatus and method for protecting BIOS stored on a direct access storage device (62) into a personal computer system (10). The personal computer system (JO) comprises a system processor (26), a system planar (24), a random access main memory (32), a read only memory (36), a protection means and at least one direct access storage device (62). The read only memory (36) includes a first portion of BIOS and data representing the type of system processor (26) and system planar (24) I/O configuration. The first portion of BIOS initializes the system (10) and the direct access storage device (62), and resets the protection means in order to read in a master boot record into the random access memory (32) from a protectable partition on the direct access storage device (62). The master boot record includes a data segment and an executable code segment. The data segment includes data representing system hardware and a system configuration which is supported by the master boot record. The first BIOS portion confirms the master boot record is compatible with the system hardware by verifying that the data from the data segment of the master boot record agrees with the system processor (26), system planar (24), and planar (24) I/O configuration. If the master boot record is compatible with the system hardware, the first BIOS portion vectors the system processor (26) to execute the executable code segment of the master boot record. The executable code segment confirms that the system configuration has not changed and loads in the remaining BIOS portion from the same protectable partition on the direct access storage device (62) into random access memory (32). The executable code segment then verifies the authenticity of the remaining BIOS portion and vectors the system processor (26) to begin executing the BIOS now in random access memory. BIOS, executing in random access memory (32), then activates the protection means to prevent further access to the protectable partition. BIOS boots up the operating system to begin operation of the personal computer system.

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