A logic system in an intersystem link (ISL) unit accommodating the transfer of binary coded information between communication busses in a data processing system is disclosed, wherein dedicated locations in a file register are selected at the bus rate in response to binary coded information received from a local communication bus. ISL transactions to be initiated in response to bus cycle requests thereby are identified. ISL transactions are handled in parallel, and memory transfers are segregated...

A method of data transfer applicable to processing elements which are interconnected by a network to form a multiprocessor system, whereby when a datum is to be transferred from a processing element to the network, the datum is sent to a transfer controller of the processing element at the same time that it is being read out from memory to be used by the processor of the processing element, or as it is being generated from the processor and written into memory. Thus, the system performance can b...

A method for servicing a mount request in an automated storage library in which all of the peripheral storage devices therein are occupied and which permits an active data storage medium to be temporarily demounted and subsequently remounted in any subsequently available peripheral storage device is disclosed. To service a mount request requiring that a data storage medium be demounted, the access information for the data storage medium to be demounted is first retained. After demounting and ser...

In an online processing device connected to a packet switched network which is supplied with a call signal from a data terminal unit used by a plurality of users, the data terminal unit supplies the packet switched network with the call signal which carries an identification code specific to each of users. The packet switched network supplies the online processing device with a call packet signal carrying the identification code. The online processing device includes a memory section for memoriz...

An information transfer system in which an information transfer control arrangement including information transfer control and reference information storage is provided in a system having at least three subsystems communicating with each other using transfer information which contains an information unit common to all information handled by the subsystems. The information transfer control refers to information in the reference information storage, and rearranges the information arrangement from ...

A data processing system having the capability to store data is provided with a facility to dynamically establish a data pipeline extending from a source of the data to an intended recipient. The operation of the data pipeline facility is typically initiated in response to a user entering a request for particular data. Specifically, upon receipt of the user request, a chain of commands is dynamically constructed, in which each command is operative for forming a respective leg of the data pipelin...

A method of selectively obtaining formatted dump data from a remote software product employs an open Manager-Agent concept, where the Agent is represented by the remote software product and the Manager is represented by the local customer/vendor management station. A dump object is defined; this object exists at the Agent and is exposed to Manager for modification, e.g., specification of a value. Modification of the dump object by the Manager will cause the Agent to selectively create/store a fo...

Apparatus for downloading videotex information via a host computer includes a group of local terminals installed at a variety of locations. The terminals receive and store macro programs from the host computer. The local terminal then activates the macro programs via a set of function input devices, which generate macro program activating signals.

Contents on a server that need not be updated for a fixed period of time are recorded directly in a medium, and desired contents in a local device can be accessed by the same operation procedure as that for accessing the server storing the contents. When a request to acquire delivery information is made from information browsing unit with respect to a local proxy server, the local proxy server analyzes the request, and acquires a server-side control file managed by a server with respect to which...

A computer system selectively loads graphics for a web page. The user selects graphics on, graphics off or necessary graphics. In response to the user selection of graphics on, the system automically selects to display a web page with regular text and graphics associated with the web page. In response to the user selection of graphics off, the system selects to display a web page with regular text, without graphics and with alternate text, if any, for the graphics. In response to user selection ...