CygnusEd
Encyclopedia
CygnusEd is a text editor
Text editor
A text editor is a type of program used for editing plain text files.Text editors are often provided with operating systems or software development packages, and can be used to change configuration files and programming language source code....

 for the Amiga OS and MorphOS
MorphOS
MorphOS is an Amiga-compatible computer operating system. It is a mixed proprietary and open source OS produced for the Pegasos PowerPC processor based computer, PowerUP accelerator equipped Amiga computers, and a series of Freescale development boards that use the Genesi firmware, including the...

. It was developed in 1986-1987 by Bruce Dawson, Colin Fox and Steve LaRocque who were working for CygnusSoft Software. It was the first Amiga text editor with an undo/redo feature and one of the first Amiga programs that had an AREXX
ARexx
ARexx is an implementation of the REXX language for the Amiga, written in 1987 by William S. Hawes, with a number of Amiga-specific features beyond standard REXX facilities. Like most REXX implementations, ARexx is an interpreted language...

 scripting port by which it was possible to integrate the editor with AREXX enabled C compilers and build a semi-integrated development environment
Integrated development environment
An integrated development environment is a software application that provides comprehensive facilities to computer programmers for software development...

. Many Amiga programmers grew up with CygnusEd and a considerable part of the Amiga software library was created with CygnusEd. It is still one of very few text editors that support jerkyless soft scrolling
Scrolling
In computer graphics, filmmaking, television production, and other kinetic displays, scrolling is sliding text, images or video across a monitor or display. "Scrolling", as such, does not change the layout of the text or pictures, or but incrementally moves the user's view across what is...

.

It remained popular even after Commodore
Commodore International
Commodore is the commonly used name for Commodore Business Machines , the U.S.-based home computer manufacturer and electronics manufacturer headquartered in West Chester, Pennsylvania, which also housed Commodore's corporate parent company, Commodore International Limited...

's bankruptcy in 1994. In 1997 version 4 was developed by Olaf Barthel and was ported to MorphOS by Ralph Schmidt in 2000 and made available for users having the original CygnusED 4 CDROM. In 2007 version 5 was finished by Olaf Barthel again, which runs on AmigaOS 4
AmigaOS 4
AmigaOS 4, , is a line of Amiga operating systems which runs on PowerPC microprocessors. It is mainly based on AmigaOS 3.1 source code, and partially on version 3.9 developed by Haage & Partner...

.
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