The Answer of Chapter 8

True/false

1.   F

      2.   F
      3.   T
      4.   T
      5.   F
      6.   T
      7.   T
      8.   F
      9.   F
      10. T

Multiple Choices

 1. B
 2. B
 3. C
 4. A
 5. C
 6. D
 7. C
 8. A

Matching

 1.  F
 2.  C
 3.  G
 4.  D
 5.  E
 6.  H
 7.  A
 8.  B
 9.   I
 10. J

Short Answer

1. - When turning on a computer that has been powered off completely, you are performing a cold boot. A warm boot, by contrast, is the process of using the operating system to restart a computer.
   - The kernel is the core of an operating system that manages memory and devices, maintains the computer’s clock, starts programs, and assigns the computer’s resources, such as devices, programs, data, and information. The kernel is memory resident, which means it remains in memory while the computer is running. Other parts of the operating system are nonresident, that is, these instructions remain on a storage medium until they are needed.

2. - User interface controls how you enter data and instructions and how information is displayed on the screen.
   - graphical user interface (GUI), users interact with menus and visual images such as buttons and other graphical objects to issue commands. In a command-line interface, a user types commands or presses special keys on the keyboard (such as function keys or key combinations) to enter data and instructions.

3. -these updates can include fixes to program bugs, or errors, enhancements to security, modifications to device drivers, access to new or expanded components such as desktop themes or games, and even updates to application software on the computer such as a Web browser or an e-mail program.
  - a users who have registered and/or activated their software.

4. - During the back up process, the utility monitors progress and alerts you if it needs additional media, such as another disc. Many backup programs compress, or shrink the size of, files during the backup process. By compressing the files, the backup program requires less storage space for the backup files than for the original files.

   - restore utility reverses the process and returns backed up files to their original form.

5. - Windows Embedded CE,iPhone OS, Palm OS, Google Android.
   - a. Windows embedded CE use on communications, entertainment, and computing devices with limited functionality.
     b. iPhone OS to interact with iPhone OS devices using finger motions such as tapping a button on the screen, sliding your finger to drag an object, and pinching or unpinching your fingers to zoom in or out.
     c. Palm OS users can manage schedules and contacts, phone messages, notes, task and address lists, and appointments.
     d. Google Android allows programmers to design programs specifically for devices supporting this operating system.