公开(公告)号：GB2191612A

公开(公告)日：1987-12-16

申请号：GB8614210

申请日：1986-06-11

Applicant: IBM

Inventor： LAWRENCE STEPHEN GRAHAM COPING ,  MCMORRAN MICHAEL ALEXANDER ,  MIDDLETON BRIAN HARLAND

IPC: G06F9/45 ,  G06F3/153 ,  G06F13/00 ,  G06F15/00

Abstract: Display terminal of the type which is dependent on a host processor for its operation and for its data storage which comprises an interactive language interpreter (24) (eg for BASIC) and means (92) for switching between a session (90) associated with the host and a session (91) dedicated to servicing the interactive language interpreter (24). The provision of means (96) during an interactive language session for displaying and then saving screens of data associated with the host session, enables host data to be processed using user programs in the interactive language.