It is important to check the return value when making an fopen() call because the call is really a request to the operating system to open a file.

Which of the following is not true about e-books?

A) You can borrow them from the library.
B) They are always PDF file format.
C) You can annotate them with your own notes.
D) Amazon sells more e-books now than printed books.

A file is a collection of program instructions or data that is stored and treated as a single unit.

Assigns a value to a cell based on a logical test.

A) NOW function
B) Fill Formatting Only
C) goal seeking
D) what-if analysis
E) NUM!
F) #NAME?
G) Keep Source Formatting
H) Fill Series
I) IF function
J) absolute cell referencing

Before accumulating values, the accumulator variable should be initialized to ____.

A) -1
B) 0
C) 1
D) NULL

Windows users who have computers or devices with ____________________ capability can interact with the screen using gestures.