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

Question

Quizplus · Accepted Answer

Mac OS was the first commercial graphical-based operating system that made its debut in 1984 with the release of the Apple Macintosh. Linux was not a commercial operating system, but rather an open-source operating system that was first released in 1991. Windows 1.0 was released in 1985, one year after the debut of Mac OS, and was not the first commercial graphical-based operating system. Unix was first developed in the late 1960s and was primarily a command-line operating system. z/OS is an operating system developed by IBM for mainframe computers and was not released until 2000.

Which of the Following Operating Systems Was the First Commercial