The ______ method of the ADT stack retrieves the top of the stack, but does not change the stack.

The two major types of system software programs are utility programs and the ________

A) charms B) operating system C) application software D) user interface

Which of the following is NOT a reason for the popularity of bulletin boards among subversive organizations?

a. cheaper than printed publications b. perception of Second Amendment protection c. lack of regulations d. possibility of complete globalization