Question: Which of the following is the first UNIX editor?
A emacs
B ex
C ed
D vi
Answer: ed
| Characteristic | Description |
| Name | ed (Editor) |
| Type | Line-oriented text editor |
| Usage | Command-line interface |
| Platform | Cross-platform with appropriate implementations |
| Introduction | Developed in the mid-1970s as one of the first text editors for Unix |
| Original Author | Ken Thompson |
| Developer | AT&T Bell Laboratories |
| Written In | The ed text editor was written in the C programming language |
| Operating System | Unix and Unix-like operating systems |
| Initial Release | Released as part of the first Unix version (Unix Version 1) in 1971 |
| Interface | Text-based interface |
| Features | Basic text editing capabilities, including insert, delete and search |
| Scripting | Supports scripting and automation through command sequences |
| Popularity | Succeeded by more user-friendly editors like vi and emacs |
| Notable Usage | Ed was used in Unix system scripts and as a system editor |