Question

1 multiple choice 2 points which type of user interface allows interaction through windows, icons, and menus? voice user interface (vui) command-line interface (cli) text-based interface graphical user interface (gui) 2 multiple choice 2 points in a multi-programming operating system, what allows the cpu to switch between programs? the cpu switches when one program is waiting for input or output the cpu stops working on a program when its complete the cpu finishes all tasks in a batch before switching the cpu assigns all its resources to a single program

Explanation:

• Question 1: A Graphical User Interface (GUI) uses visual elements like windows, icons, and menus for user interaction. Voice User Interface (VUI) uses voice commands, Command - Line Interface (CLI) uses text commands, and Text - Based Interface is a more basic form without the graphical elements described.
• Question 2: In a Multi - programming Operating System, the CPU switches between programs when one program is waiting for input or output. This allows efficient use of CPU time as it doesn't have to wait idle while a program is in an I/O wait state. The other options are incorrect as stopping when complete is more like batch processing (not multi - programming), finishing all tasks in a batch is batch processing, and assigning all resources to a single program is not multi - programming.

Answer:

1. D. Graphical User Interface (GUI)
2. A. The CPU switches when one program is waiting for input or output