A __________ is used to represent a single character in a UNIX file name.

To track changes in a workbook, the workbook must be a(n) ________ workbook

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

Which of the following are true of the Model-View-Controller pattern?

a. This pattern is useful in designing a GUI (graphical user interface). b. This pattern is useful only in designing end-user computer applications. It is of little value otherwise. c. This pattern presents a way to separate (at least logically) I/O from the process part of the application. d. In this pattern, the Controller is the input portion of the task. e. In this pattern, the View is the input portion of the task. f. In this pattern, the Controller accepts data and commands from the user, it sends the to the Model. The Model processes commands, operates on the data, and changes the state of the program, notifies the View. The View presents the state of the program.