Text editor supplied with Digital Research Concurrent CP/M
Author: Digital Research, Inc. Homepage: None Family: CPMEditorFamily LineEditorFamily Platform: Concurrent CP/M License: Commercial
ED was a mix of screen editor and line editor. Text was read from a disk file, and written to a disk file, and editing was performed on the section buffered in device memory. The text was considered an arbitrary stream of characters, and editing was relative to CP, the Cursor Position. Commands selected the file to edit, the portion of the file to be worked on, and moved the CP within the editing buffer. Other commands performed the actual editing operations. Edits were not displayed interactively on screen. You issued editing commands, then used the T command to display the edited lines on screen.