公开(公告)号：AU527907B2

公开(公告)日：1983-03-31

申请号：AU5055979

申请日：1979-09-04

Applicant: IBM

Inventor： LEWIS DAVID OTTO ,  REED JOHN WALTER ,  WALLIN GARY WILLIAM

IPC: G06F13/00 ,  G06F13/12 ,  G06F3/00 ,  G06F9/18

Abstract: This invention relates to a data processing system. … In such a system having an addressable storage (5) for storing instructions, data and input-output (I/O) commands, a central processing unit (CPU) (1) which fetches an executes instructions, and channel means (3) connecting I/O adapters (4) to the storage and the CPU, an apparatus is provided which transfers I/O commands to the I/O adapters (4) whereby the I/O command is either accepted immediately or is queued by the I/O adapter. A queued command is taken up by the I/O adapter (4) when no other data transfer operation is pending. To take up a queue command, the I/O adapter (4) initiates a fetch of the pending command by invoke a standard data-transfer-from-storage sequences. The channel means (3) responds to the fetch initiated by the I/O adapter (4) to send the pending command to the I/O adapter.

公开(公告)号：DE2964624D1

公开(公告)日：1983-03-03

申请号：DE2964624

申请日：1979-09-24

Applicant: IBM

Inventor： LEWIS DAVID OTTO ,  REED JOHN WALTER

IPC: G06F11/00 ,  G06F11/07 ,  G06F13/00 ,  G06F11/22

公开(公告)号：DE2312304A1

公开(公告)日：1973-10-25

申请号：DE2312304

申请日：1973-03-13

Applicant: IBM

Inventor： BROOKS EVERETT GERRISH ,  HEISE NYLES NORBERT ,  LEWIS DAVID OTTO ,  POOLER GLENN DAVID ,  ROCHESTER MINN ,  ZIMMERMAN DEAN OWEN

IPC: G06F13/10 ,  G06F13/24 ,  G06F3/04