When you open a file for output, if the file already exists, the computer erases the contents of the file before writing any data to it.

A(n) ____ sound plays independently of the Timeline.

A. event B. stream C. loop D. repeat

The _________________________ is a program on a read-only or flash memory chip that establishes basic communication with components such as the monitor and disk drives.

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