Which of the following is a GUI (Graphical User Interface) based operating system?

Qkjg6pH7xUz3XF6h9tB8DP
E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 8751-8753
Practise the full AIIMS Raipur NO - 2019 (Shift-1)
Attempt every question from this paper in a timed mock, then review the full solution for each one.