____ are notes within the actual program code that identify key features and steps of the program but that are written in such a way that the computer knows to ignore them when the program is executed.

To display a hidden row, you select the rows above and below the hidden row, right-click the selection, and then select Unhide from the shortcut menu

Indicate whether the statement is true or false.

A user, Ann, is preparing to travel abroad and wants to ensure that her laptop will work properly. Which of the following components of the laptop should be verified FIRST to ensure power compatibility before traveling?

A. Wall adapter B. Battery C. Power supply D. Digitizer