单项选择题
A. It is a feature of new floppy drives.
B. The data cable was put on backwards.
C. A disk is being read by the floppy drive.
D. The new floppy drive is defective.
单项选择题 A technician installed a new motherboard in a workstation. Which of the following describes theBEST steps for a proper installation?（）
单项选择题 A technician has installed Windows Vista Ultimate and is setting up the Media Center. When the technician goes to watch TV, Media Center displays an error of no TV tuner installed. The TV tuner is installed with the correct drivers. Which of the following is the solution to the problem?（）
单项选择题 Which of the following below would BEST optimize Windows XP startup?（）