九夏ペ微凉Correct answer is (a)
10.
A computer has one floppy disk drive, labeled A, and two hard disks, labeled C and D. Which of the following lists the drives in the order, first-to-last, that the BIOS would typically check during the boot process to find an operating system to load?
错误！ 错误！ 未找到引用源。 未找到引用源。 (a) C:, A:, D: 错误！ 未找到引用源。 错误！ 未找到引用源。 (b) A:, D:, C: 错误！ 未找到引用源。 错误！ 未找到引用源。 (c) D:, C:, A: 错误！ 未找到引用源。 错误！ 未找到引用源。 (d) A:, C:, D: Correct answer is (d)
11.
How would users benefit if the computer industry agreed on a standard for interfacing device drivers to operating systems?
错误！未找到引用源。 错误！未找到引用源。(a) Only one device driver would be needed to communicate with all devices. 错误！未找到引用源。(b) Device drivers would require less software and take up less RAM. 错误！未找到引用源。 错误！未找到引用源。 错误！未找到引用源。(c) Device drivers would never have to be updated after they are installed. 错误！ 未找到引用源。 错误！ 未找到引用源。(d) All operating s
ystems supporting the standard could use the same device driver. Correct answer is (d)
12.
The file system of an operating system can easily work with files on perse types of storage devices because
错误！未找到引用源。 错误！未找到引用源。(a) storage devices perform the actual file management on their own media 错误！未找到引用源。 错误！未找到引用源。(b) the API provides a consistent interface to the storage devices 错误！未找到引用源。 错误！未找到引用源。(c) device drivers hide the details involved with accessing storage devices from the operating system 错误！未找到引用源。 错误！未找到引用源。(d) all physical storage devices operate basically the same way with respect to accessing data Correct answer is (c)
1.
How would users benefit if the computer industry agreed on a standard for interfacing device drivers to operating systems? 错误！未找到引用源。 错误！未找到引用源。(a) Only one device driver would be needed to communicate with all
devices. 错误！未找到引用源。 错误！未找到引用源。(b) Device drivers would require less software and take up less RAM. 错误！ 找到引用源。 错误！未找到引用源。(c) Device drivers would never have to be updated after they are installed. 错误！ 未找到引用源。 错误！ 未找到引用源。(d) All operating systems supporting the standard could use the same device driver. Correct answer is (d)
2.
The illusion of multitasking can be given by switching control of the CPU to a waiting task under which circumstance(s)? I. II. III. A task controlling the CPU is waiting for user input from a device. A task controlling the CPU is performing output to a device. A task has been in control of the CPU for longer than some predetermined maximum.
错误！未找到引用源。 错误！未找到引用源。(a) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(b) I and III only 错误！未找到引用源。 错误！未找到引用源。(c) I only 错误！未找到引用源。 错误！未找到引用源。(d) II and III only Correct answer is (a)
3.
Which of the following services are provided by the BIOS? I. II. III. Orchestration of the initial boot process Management of file creation and file deletion Basic support for devices such as the keyboard
错误！ 错误！未找到引用 源。(a) I and III 错误！ 错误！未找到引用 源。(b) II only 错误！ 错误！未找到引用 源。(c) I only 错误！ 错误！未找到引用 源。(d) I and II Correct answer is (a)
4.
Device drivers facilitate communication between which layers of the system? 错误！未找到引用源。 错误！未找到引用源。(a) The operating system and hardware devices 错误！未找到引用源。 错误！未找到引用源。(b) Applications and hardware devices 错误！未找到引用源。 错误！未找到引用源。(c) The op
