公开(公告)号：DE3278319D1

公开(公告)日：1988-05-11

申请号：DE3278319

申请日：1982-08-10

Applicant: IBM

Inventor： DANIELS PAUL RICHARD ,  MOORE DANIEL JOSEPH ,  NGUYEN HA HOANG

IPC: G06F3/12

Abstract: A word processing system is provided having a bidirectional printer with formatting capability. The system includes a word processor (11) having means for outputting a stream of sequential data readable in only one direction. The data comprises blocks of character data representative of the characters to be printed interspersed with blocks of control data representative of the format in which the characters are to be printed; each block of control data has an immediately preceding control block identifier. The bidirectional printer includes means (16, 18) for receiving the stream of sequential data, means (18,15) for scanning the stream of data and means (15) for inserting a control block identifier at the end of each control block which identifier corresponds to the Identifier preceding the control block, whereby the stream of sequential data is made readable in both the forward and reverse directions within the printer.

公开(公告)号：BR9002272A

公开(公告)日：1991-08-06

申请号：BR9002272

申请日：1990-05-15

Applicant: IBM

Inventor： GREEN EMILY ANN ,  MALCOLM JERRY WALTER ,  NGUYEN HA HOANG ,  ROOSKEN CYNTHIA ANN

IPC: G06F11/32 ,  G06F3/023 ,  G06F3/048 ,  G06F3/14 ,  G06F9/00

Abstract: An application or terminal emulation program, which is being executed on an information processing system, is represented by the display of a first icon on a display device. If during the execution of the application or terminal emulation program, a virtual display buffer associated with the application program, is updated, a second icon is displayed on the display device to indicate to a user of the system that a change in the status of the program has occurred.