Which of the following operating systems was the first commercial graphical-based operating system,which made its debut in 1984?
A) Mac OS
B) Linux
C) Windows
D) Unix
E) z/OS

Question

Quizplus · Accepted Answer

Mac OS, specifically Macintosh System Software, was the first commercial graphical-based operating system, which made its debut in 1984. Windows, although released around the same time, did not have a graphical user interface until Windows 1.0 was released in 1985. Linux and Unix are both command-line based operating systems, and z/OS is a mainframe operating system.

Which of the Following Operating Systems Was the First Commercial