A. Internet Explorer web browser
B. Photoshop image editing program
C. Windows operating system
D. Microsoft PowerPoint presentation software
Answer: –C. Windows operating system
The correct answer is ‘DOS’. DOS is an operating system, not an application software. Application software is a program or group of programs designed for end users. They can be used for a variety of purposes, including word processing, spreadsheets, and computer graphics. Operating systems, on the other hand, are system software that provide a platform for other software to run on. They manage the computer’s resources, such as the CPU, memory, and storage.