The operating system is hardware that manages a computer's internal operations and defines how you interact with the computer.

When processing a queue:

a. An error occurs when adding data to the queue and the queue is filled. b. An error occurs when deleting data from the queue and queue is empty. c. An error occurs when the wrong option is entered. d. All of the above.

You should use the ____________________ panel to check the list of images and colors used in your website.

Fill in the blank(s) with the appropriate word(s).