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IBM System/7 Functional Characteristics - All about the IBM 1130 ...

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<strong>IBM</strong> 5024 I/O Attachment EnclosureCHAPTER CONTENTS<strong>Functional</strong> Description 17-4Data Controller 174I/O Transfer Block 17-4Status Buffers 17-6Interrupt Presentations 17-7I/O Command 17-7Controller Initialization 17-8<strong>IBM</strong> 2502 Card Reader 17-9Initiate I/O 17-9Initial Program Load (IPL) 17-92502 Card Reader Translate Table 17-10I/O Transfer Block 17-10.2Status Buffer 17-11Interrupt Presentation 17-15Operating and Program Restrictions 17-15Timing Information 17-15Switches and Indicators 17-16Line Printer 17-18Initiate I/O 17-18I/O Transfer Block 17-19Status Buffer 17-23Status Word 1 17-24Status Word 2 17-26Interrupt Presentation 17-28Operating and Programming Restrictions 17-28Switches and Indicators 17-28<strong>IBM</strong> <strong>System</strong>/7 <strong>Functional</strong> <strong>Characteristics</strong>©<strong>IBM</strong> Corp. 1970, 1971, 1972, 1974, 1975 <strong>IBM</strong> 5024 I/O Attachment Enclosure 17-1

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