Abstract: When dot density conversion processing of page data is effected by managing the position, size and data kind of each area for the page data including the portions which are formed as the data of different areas for at least two kinds of data of a plurality of data kinds each having at least one kind such as text data, graphic data, image data, and so forth, dot conversion means disposed for each area in such a manner as to correspond to each data kind is selected and conversion is made so that the result of conversion is drawn at a predetermined output position of each area.

Abstract: A system which comprises a message data base for storing help messages, a history buffer for storing the past statuses of an interactive processing system, an inference engine for determining a help message to be outputted, and a rule data base for storing the rules for determining a help message by said inference engine, determines an output help message on the basis of at least the past status history using said inference engine, furthermore outputs a help message by a user's command, selects a message data base to be used by the system at that time from a plurality of message data bases, or selects a rule data base to be used by the system at that time from a plurality of said rule data bases

Abstract: A method of help-information control for displaying help information on a display unit of an information processing system executing a plurality of application programs. A status management table for storing the executing status of application programs is provided as common to these programs. During execution of a given application program, the contents of the status information table are updated successively in accordance with the executing status. Whenever an operator makes a help request, the contents of the status management table in effect at that point in time are referenced. The table is searched for the help information corresponding to the request. When found and retrieved, the information is displayed. The search is performed using a program identifier, a message identifier, and a help message searching table that includes the position information containing the corresponding help data.

Abstract: Control is performed for each of the individual components in accordance with a table including information on clock control and power control of each component of an information processing apparatus. Clock supply is stopped or clock frequency is lowered immediately or after the lapse of a predetermined period of time since the component is brought into an unused condition. Supply of power is stopped immediately or after the lapse of a predetermined period of time. In this case, the predetermined period of time can be automatically adjusted by detecting the condition of access to the component.

Abstract: A method of help-information control for displaying help information on a display unit of an information processing system executing a plurality of application programs. A status management table for storing the executing status of application programs is provided as common to these programs. During execution of a given application program, the contents of the status information table are updated successively in accordance with the executing status. Whenever an operator makes a help request, the contents of the status management table in effect at that point in time are referenced. The table is searched for the help information corresponding to the request. When found and retrieved, the information is displayed. The search is performed using a program identifier, a message identifier, and a help message searching table that includes the position information containing the corresponding help data.

Abstract: In an information communication system for performing both point-to-point communication and point-to-multipoint communication between a host computer and terminals by using same lines while distributing loads of data communication, data communication report tables are provided on a main storage unit of the host computer for each type of communication. The data communication process is executed distributively at each CPU unit and communication interface unit of the host computer and at each control module of a communication control unit. A plurality of destination pattern tables indicating data destinations are provided for point-to-multipoint communication. For the point-to-multipoint communication, CPU unit designates a particular destination pattern table for each interface unit, and data transmission is requested to each control module in accordance with the destination pattern table.

Abstract: A shared source managing method and device are provided for managing as shared sources a plurality of I/O devices by a plurality of information processing devices. The shared source managing method and device are designed to display a sketch of an inside of a building in which I/O devices are installed on the screen of each information processing device, display the design representing the I/O device at the installed location of each I/O device, and indicate the installed location of each I/O device to a user. Further, the method and device serve to display the type and the operating state of each I/O device together with the design of the I/O device so that the user can know the type and the operating state of each I/O device.

Abstract: A printing system in which a plurality of terminals for creating document data with different printing protocols or character codes, the document data including a string of printing commands, are connected to a print server for printing the document data via a network. Each terminal includes a device adding an identifier indicating a printing protocol or character code of the document data to be sent to the print server. The print server includes a converter for converting the different printing protocols or character codes into a common printing protocol or a common set of character codes according to the identifier. The print server may includes a memory for storing command processing programs associated with the different printing protocols or different sets of character codes and a switcher for selecting one command processing program or one set of character codes according to the identifier.

Abstract: A method and apparatus for file operation comprise a file operation method which enters, prior to the file operation, processing methods for exceptional events which are expected to occur during the file operation, a file operation method which, at the occurrence of an exceptional event during a file operation, holds the file operation, saves information pertinent to the held file into a memory, and inquires the user of the processing method of the held file for the exceptional event, and a file operation method which displays a list of hierarchically organized files at multiple levels so that multiple files can be designated as objects of operations.

Abstract: A print control apparatus for controlling a page printer, such as a laser printer. The print control apparatus comprises a plurality of page buffers provided in units each corresponding to a page having a minimal or relatively small paper sheet size. A necessary numbers of page buffers are acquired and then released by a draw task or a print task according to the page size to be printed so that printing can be carried out even on large size paper sheets with less total capacity of the page buffers and printing can be carried out on average at the highest speed of the printer engine on small size paper sheets even if there is a page containing a lot of drawing data during a continuous printing operation.

Abstract: Edited data for text, patterns, graphs, and the like can be provided by editing programs dedicated to edition of each of such data. A system for editing and printing documents includes a plurality of printing program each corresponding with each of the editing programs and operating independently of one another for generating graphics commands in accordance with the edited data a printing control program for generating print images composed of dots in accordance with the graphics commands from the printing programs and a printing management program for controlling operations of the printing programs in accordance with data in a control data file which stores therein data related to printing programs such as print positions of individual edited data.

Abstract: In an ISDN network, data communications can be performed in two communication modes corresponding to line and packet switchings in the same network. The line switching is effective in transmitting mass data to a receiving station and receiving the same therefrom at high speed, and accounting is made to a period of time required for communication in a public network. On the other hand, the packet switching is effective in transmitting low-speed data or small amounts of data produced in a discrete manner, and accounting is made to the amount of transmitted data in the public network.With a valve toward making efficient use of the two communication modes, the present invention relates to a data communication apparatus of the type wherein the two communication modes are changed as needed so as to perform data communications, and to a data communication system suitable for use with the data communication apparatus.

Abstract: A document creating apparatus for creating and editing a document in which a plurality of different types of descriptive element data, such as text data, graph data, pattern data, image data and other data, coexist. Plural types of edit sections are provided in correspondence with the types of data to be handled. Various types of data are edited under coordination by selecting edit sections corresponding to the types of data, respectively, while maintaining the editing function of the editing section once selected and activated so that the editing section can be selected again without losing its editing function.

Abstract: In a printer controller which receives a command series containing a drawing command for instructing a drawing operation, and also a printing command for instructing a printing operation, the command series being transmitted from a host computer, there are employed a central processing unit and a memory unit, and a command buffer unit for storing the command series and a page buffer unit for storing plural pages of drawn dot image data are formed in the memory unit. The central process unit executes both a task process program for executing the drawing command and printing command as a drawing task and a printing task respectively, and a task control program for performing a task control for processing the respective tasks in this task process program. Further, a task control table for holding task control information is provided in the memory unit. The task control program performs a task control in accordance with a content of the task control table.

Abstract: A documentation system for editing a document in which a plurality of document data of different forms coexist in a mixed fashion and which includes one or more pages each partitioned into a plurality of regions in accordance with difference edition processing procedures. The system includes a storage for storing the document data of the above-mentioned document structure, a display for displaying the document data as images, and a program executing unit for executing the programs to process the document data within the region being subjected to the edition. The edition processing programs are provided in correspondence with different edition processing procedures such that a given one of the edition processing programs processes the edition of the document data within one of the regions in the document image being displayed on the display unit.

Abstract: In a printer controller which receives a command series containing a drawing command for instructing a drawing operation, and also a printing command for instructing a printing operation, the command series being transmitted from a host computer, there are employed a central processing unit and a memory unit, and a command buffer unit for storing the command series and a page buffer unit for storing plural pages of drawn dot image data are formed in the memory unit. The central process unit executes both a task process program for executing the drawing command and printing command as a drawing task and a printing task respectively, and a task control program for performing a task control for processing the respective tasks in this task process program. Further, a task control table for holding task control information is provided in the memory unit. The task control program performs a task control in accordance with a content of the task control table.

Abstract: A central processing unit, a main memory for storing graphic or character data, an external memory, an input device for inputting the graphic or character data, a shared memory for temporarily storing the graphic or character data read by the central processing unit, a display processing means for preparing a plurality of display data displayed on a display from the graphic or character data on the shared memory, and a display memory for storing the plurality of display data are connected to a bus. The display memory, the shared memory, and the external memory have first, second and third save areas for temporarily saving the overlapped display data when the plurality of display data are overlapped. The main memory is provided with a first control table for controlling display position, mutual priority for display, and a save area during overlap, regarding each of the plurality of display data stored in the display memory.

Abstract: A print control system for controlling a computer system comprising a processing unit, a memory unit, a display unit, an input unit and a printer. The memory unit has print request blocks each for storing information necessary for printing a document, and an area for storing a print queue for defining the print execute order of the print request blocks.

Abstract: A virtual storage managing system in which the storage address is managed by means of a virtual address, and the virtual storage area which can be assigned by the virtual address is divided into an address non-translation area which does not require the address translation and an address translation system which requires an address translation. The address translation area is divided into an address fixed area and an address variable area. In the address translation area, the correspondence between the virtual address and the real address is fixed in a 1:1 fashion, whereas, in the address variable area, the correspondence is determined at the time of starting of execution of a program and is dismissed when the execution of the program is completed.

Abstract: An operating system (OS) is divided into units (OS processes) which are concurrently executable. When the processors concurrently request the execution of one OS process, data indicating that the requested OS process is in a ready state is loaded into a memory. The other processors repeatedly make an access to the data during the course of the execution of the user's task to check to see whether the ready-state OS process is present or not. A processor when detecting the ready-state OS process ceases the execution of the user's program and executes that OS process.