计算机导论选择题quiz1-7

1.
A computer processes data in a device called the
错误！未找到引用源。 错误！未找到引用源。(a) device driver 错误！未找到引用源。 错误！未找到引用源。(b) URL 错误！未找到引用源。 错误！未找到引用源。(c) server 错误！未找到引用源。 错误！未找到引用源。(d) CPU Correct answer is (d)
2.
Which of the following is (are) true about computers? I. II. III. They accept input. They store data. They produce output.
错误！未找到引用源。 错误！未找到引用源。(a) II only 错误！未找到引用源。 错误！未找到引用源。(b) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(c) I and III 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 (b)
3.
Which of the following can supply input to a computer? I. II. III. A person The environment Another computer
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 only 错误！未找到引用源。 错误！未找到引用源。 (c) III only 错误！未找到引用源。 错误！未找到引用源。 (d) I and II only Correct answer is (a)
4.
Computers that operate in essentially the same way are said to be 错误！未找到引用源。 错误！未找到引用源。 (a) integrated
错误！未找到引用源。 错误！未找到引用源。 (b) compatible (c) 错误！ 未找到引用源。 错误！ 未找到引用源。 compound 错误！未找到引用源。 错误！未找到引用源。 (d) user-friendly Correct answer is (b)
5.
A computer file is a named collection of data that exists on which of the following? I. II. III. Optical disk (CD or DVD) Floppy disk Hard disk
错误！未找到引用源。 错误！未找到引用源。(a) II and III only 错误！未找到引用源。 错误！未找到引用源。(b) III only 错误！未找到引用源。 错误！未找到引用源。(c) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(d) I only Correct answer is (c)
1.
Which of the following is (are) true regarding the comparison between transistors and vacuum tubes? I. II. Transistors are smaller and more reliable than vacuum tubes. Vacuum tubes are more energy efficient than transistors.
错误！ 错误！未找到引用 源。(a) I and II 错误！ 错误！未找到引用 源。(b) None 错误！ 错误！未找到引用 源。(c) II only 错误！ 错误！未找到引用 源。(d) I only Correct answer is (d)
2.
Which of the following statements concerning microprocessors is correct? 错误！未找到引用源。 错误！未找到引用源。(a) Microprocessors can only be programmed for a single
purpose. 错误！未找到引用源。 错误！未找到引用源。(b) Microprocessors cannot be programmed after they are 引用源 manufactured. 错误！未找到引用源。

错误！未找到引用源。(c) Most microprocessors are as big as a human hand. 错误！未找到引用源。 错误！未找到引用源。(d) Microprocessors consist of integrated circuits. Correct answer is (d)
3.
Which of the following is (are) true regarding the Pascaline? I. II. III. It is an electronic calculating device. It uses vacuum tubes for performing mathematical operations. It uses punched cards for storing program instructions.
错误！未找到引用源。 错误！未找到引用源。(a) None 错误！未找到引用源。 错误！未找到引用源。(b) II and III only 错误！未找到引用源。 错误！未找到引用源。(c) I and III only 错误！未找到引用源。 错误！未找到引用源。(d) I only Correct answer is (a)
4.
Which of the following is (are) true regarding the use of punched cards in computers? I. II. Punched cards use a technique that was originally used in Jacquard looms. Punched cards can be used to store program instructions, but not data.
错误！ 错误！未找到引用 源。(a) II only 错误！ 错误！未找到引用 源。(b) I only 错误！ 错误！未找到引用 源。(c) None 错误！ 错误！未找到引用 源。(d) I and II Correct answer is (b)
5.
Which of the following describes the functionality of an Intelligent Agent that is used in a customer relationship management system? 错误！未找到引用源。 错误！未找到引用源。(a) An Intelligent Agent is a database that gathers information about the customer base, marketing effectiveness, and market trends in order to learn more
about customers' behaviors. 错误！未找到引用源。 错误！未找到引用源。(b) An Intelligent Agent is a program that collects information about a user's behavior, and customizes the content on a Web site accordingly. 错误！ 未找到引用源。 An Intelligent Agent enables customers to search a consumer Web (c) 错误！ 未找到引用源。 site. 错误！未找到引用源。 错误！未找到引用源。(d) An Intelligent Agent is a program that keeps track of the product database, work schedule, and budget of a project. Correct answer is (b)
6.
Which of the following is (are) true regarding the application of computers in the education field? I. II. Simulation-based education can be used for medical training, molecular modeling, and military training. Computers can be programmed to provide language training and to correct the pronunciation errors users make.
错误！ 错误！未找到引用 源。(a) II only 错误！未找到引用 错误！ 源。(b) None 错误！ 错误！未找到引用 源。(c) I and II 错误！ 错误！未找到引用 源。(d) I only Correct answer is (c)
7.
Which of the following is (are) true regarding the abacus? I. II. The abacus was first used in India. Calculations are done using the abacus by manually moving beads.
错误！ 错误！未找到引用 源。(a) None 错误！ 错误！未找到引用

源。(b) I and II 错误！ 错误！未找到引用 源。(c) I only 错误！ 错误！未找到引用 源。(d) II only Correct answer is (d)
8.
Which of the following is (are) true regarding the Analytical Engine designed by Charles Babbage? I. II. It was designed to be a general-purpose calculating device. It included the concepts of input, process, storage, and output of data.
错误！ 错误！未找到引用 源。(a) None 错误！ 错误！未找到引用 源。(b) I and II 错误！ 错误！未找到引用 源。(c) I only 错误！ 错误！未找到引用 源。(d) II only Correct answer is (b)
1.
Which of the following statements is (are) true about transistors? I. II. They consist of microscopic circuit elements, such as wires, transistors, capacitors, and resistors, packed on a thin slice of silicon. They were used to replace vacuum tubes in computer systems.
错误！未找到引用 错误！ 源。(a) None 错误！ 错误！未找到引用 源。(b) I and II 错误！ 错误！未找到引用 源。(c) I only 错误！ 错误！未找到引用 源。(d) II only Correct answer is (d)
2.
Which of the following statements about transistors and vacuum tubes is (are) true? I. II. III. Transistors are smaller than vacuum tubes. Transistors burn out faster than vacuum tubes. A computer that uses transistors would require more power than a computer that uses vacuum tubes.
错误！未找到引用源。 错误！未找到引用源。(a) I and II only 错误！未找到引用源。 错误！未找到引用源。(b) II and III only
错误！未找到引用源。 错误！未找到引用源。(c) III only 错误！未找到引用源。 错误！未找到引用源。(d) I only Correct answer is (d)
3.
Which of the following is (are) true regarding the Pascaline? I. II. III. It is an electronic calculating device. It uses vacuum tubes for performing mathematical operations. It uses punched cards for storing program instructions.
错误！ 错误！未找到引用源。 未找到引用源。(a) I and III only 错误！ 错误！未找到引用源。 未找到引用源。(b) None 错误！未找到引用源。 错误！未找到引用源。(c) II and III only 错误！ 错误！未找到引用源。 未找到引用源。(d) I only Correct answer is (b)
4.
Which of the following statements concerning microprocessors is correct? 错误！未找到引用源。(a) Microprocessors cannot be programmed after they are 错误！未找到引用源。 manufactured. 错误！未找到引用源。 错误！未找到引用源。(b) Microprocessors consist of integrated circuits. 错误！未找到引用源。 错误！未找到引用源。(c) Microprocessors can only be programmed for a single purpose. 错误！未找到引用源。 错误！未找到引用源。(d) Most microprocessors are as big as a human hand.
Correct answer is (b)
5.
Which of the following is (are) true regarding the application of computers in the business fie

ld? I. II. Computers can be used in supply chain management both for tracking the supply of raw materials as well as the supply of finished products. Customer-relationship-management software systems enable customers to place orders and provide mechanisms to process placed orders.
错误！ 错误！未找到引用 源。(a) I and II 错误！ 错误！未找到引用
源。(b) None 错误！ 错误！未找到引用 源。(c) I only 错误！ 错误！未找到引用 源。(d) II only Correct answer is (c)
6.
Which of the following is (are) true regarding the comparison between transistors and vacuum tubes? I. II. Transistors are smaller and more reliable than vacuum tubes. Vacuum tubes are more energy efficient than transistors.
错误！ 错误！未找到引用 源。(a) I only 错误！ 错误！未找到引用 源。(b) I and II 错误！ 错误！未找到引用 源。(c) None 错误！未找到引用 错误！ 源。(d) II only Correct answer is (a)
7.
Which of the following is (are) true regarding the use of punched cards in computers? I. II. Punched cards use a technique that was originally used in Jacquard looms. Punched cards can be used to store program instructions, but not data.
错误！ 错误！未找到引用 源。(a) None 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 (c)
8.
Which of the following is (are) true regarding the Analytical Engine designed by Charles Babbage? I. It was designed to be a general-purpose calculating device.
II.
It included the concepts of input, process, storage, and output of data.
错误！ 错误！未找到引用 源。(a) I and II 错误！ 错误！未找到引用 源。(b) II only 错误！ 错误！未找到引用 源。(c) None 错误！ 错误！未找到引用 源。(d) I only Correct answer is (a)
1.
What is the decimal equivalent of the binary number 1101010? 错误！ 错误！未找到 引用源。 引用源。(a) 104 错误！ 错误！未找到 引用源。 引用源。(b) 110 错误！ 错误！未找到 引用源。 引用源。(c) 106 错误！ 错误！未找到 引用源。 引用源。(d) 108
Correct answer is (c)
2.
Which of the following is approximately equivalent to 160,000,000 bytes? I. II. III. 160 Megabytes 16 Nanobytes 0.16 Gigabytes
错误！ 错误！未找到引用 源。(a) III only 错误！ 错误！未找到引用 源。(b) I only 错误！ 错误！未找到引用 源。(c) I and III 错误！ 错误！未找到引用 源。(d) I and II Correct answer is (c)
3.
What is the binary equivalent of the decimal number 123? 错误！ 错误！未找到引用 源。(a) 1111111 错误！ 错误！未找到引用 源。(b) 1101110 错误！ 错误！未找到引用 源。(c) 1111101 错误！ 错误！未找到引用 源。(d) 1111011
Correct answer is (d)
4.
How many bits are required to store any given number in the

range 0 to 255? 错误！ 错误！未找 到引用源。 到引用源。 (a) 32 错误！ 错误！未找 到引用源。 到引用源。 (b) 8 错误！ 错误！未找 到引用源。 到引用源。 (c) 4 错误！ 错误！未找 到引用源。 到引用源。 (d) 16
Correct answer is (b)
5.
Of the following, which best describes the difference between bits and bytes? 错误！未找到引用源。 错误！未找到引用源。(a) A bit is the smallest unit of information in a computer. A byte is a collection of bits. 错误！未找到引用源。 错误！未找到引用源。(b) A byte represents the values 0 and 1, while a bit represents a range of values from 0 to 255. 错误！未找到引用源。(c) There is no difference between bits and bytes. The terms are used 错误！ 找到引用源。 interchangeably. 错误！未找到引用源。 错误！未找到引用源。(d) A byte is the smallest unit of information in a computer. A bit is a collection of bytes.
Correct answer is (a)
1.
Which of the following can be an advantage of buying a computer that contains a widely-used CPU or its equivalent clone?
I. II. III.
A lot of established computer suppliers provide products using that type of CPU. The cost of the CPU is likely to be lower because of the large quantities of the CPU that have been sold. There will be more operating systems that work with that type of CPU.
错误！ 错误！未找到引用源。 未找到引用源。(a) I and III only 错误！ 错误！未找到引用源。 未找到引用源。(b) I and II only 错误！未找到引用源。 错误！未找到引用源。(c) II and III only 错误！ 错误！未找到引用源。 未找到引用源。(d) I, II, and III Correct answer is (d)
2.
Which of the following manufacturers provides the Pentium family of processors for desktop computers? 错误！ 未找到引 错误！ 用源。 用源。(a) Cyrix 错误！ 未找到引 错误！ 用源。 (b) 用源。 AMD 错误！ 未找到引 错误！ 用源。 用源。(c) IBM 错误！ 未找到引 错误！ 用源。 (d) 用源。 Intel
Correct answer is (d)
3.
Steps performed by the CPU during the fetch-execute cycle include which of the following? I. II. Interpret Store
错误！ 错误！未找到引用 源。(a) I only 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 and II 错误！ 错误！未找到引用
源。(d) None Correct answer is (c)
4.
Which of the following is (are) true of modern microprocessors? I. II. Microprocessor chips are typically the size of a deck of cards. Microprocessors typically contain millions of transistors.
错误！ 错误！未找到引用 源。(a) I only 错误！ 错误！未找到引用 源。(b) II only 错误！ 错误！未找到引用 源。(c) None 错误！ 错误！未找到引用 源。(d) I and II Correct answer is (b)
5.
Which of the following components is (are) typically found on the motherbo

ard of a computer? I. II. III. Expansion slots The microprocessor The CMOS memory chip
错误！ 错误！ 未找到引用源。 未找到引用源。 (a) I, II, and III 错误！ 未找到引用源。 (b) 错误！ 未找到引用源。 I and III only 错误！ 未找到引用源。 (c) 错误！ 未找到引用源。 II only 错误！ 未找到引用源。 (d) 错误！ 未找到引用源。 I and II only Correct answer is (a)
6.
In order to retain data for future reference, volatile storage requires 错误！未找到引用源。 错误！未找到引用源。(a) the use of magnetism 错误！未找到引用源。 错误！未找到引用源。(b) media that can be removed from the computer 错误！未找到引用源。(c) a constant source of electrical 错误！未找到引用源。 power 错误！未找到引用源。 错误！未找到引用源。(d) the use of optical media
Correct answer is (c)
7.
Components of the CPU typically include which of the following? I. II. III. The control unit The Level 1 cache memory The Arithmetic/Logic Unit
错误！未找到引用源。(a) 错误！未找到引用源。 I and II only 错误！未找到引用源。 错误！未找到引用源。(b) II and III only 错误！未找到引用源。 错误！未找到引用源。(c) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(d) I and III only Correct answer is (c)
8.
An Arithmetic/Logic Unit typically performs which of the following operations? I. II. Retrieval of instructions from RAM Performance of greater-than and less-than comparisons
错误！ 错误！未找到引用 源。(a) II only 错误！ 错误！未找到引用 源。(b) I and II 错误！ 错误！未找到引用 源。(c) None 错误！ 错误！未找到引用 源。(d) I only Correct answer is (a)
9.
Which of the following kinds of projects typically requires a special type of CPU that would not be found in a desktop or mainframe computer? 错误！未找到引用源。 错误！未找到引用源。(a) Monitoring the operation of an automobile engine 错误！未找到引用源。 错误！未找到引用源。(b) Performing business calculations for a financial report 错误！未找到引用源。 错误！未找到引用源。(c) Processing requests to send and receive email 错误！未找到引用源。 错误！未找到引用源。(d) Looking up and storing information on
customer accounts Correct answer is (a)
10.
When a computer is turned on, the central processing unit performs instructions specified by the _____ that searches the disk drive for the main operating system files.
错误！未找到引用源。 错误！未找到引用源。(a) RAM BIOS 错误！未找到引用源。 错误！未找到引用源。(b) virtual memory 错误！未找到引用源。 错误！未找到引用源。(c) CMOS 错误！未找到引用源。 错误！未找到引用源。(d) ROM BIOS Correct answer is (d)
11.
CPU performance is influenced by

which of the following? I. II. III. Word size Clock rate Instruction set size
错误！ 未找到引用源。 (a) 错误！ 未找到引用源。 I, II, and III 错误！ 未找到引用源。 (b) 错误！ 未找到引用源。 II only 错误！ 未找到引用源。 (c) 错误！ 未找到引用源。 I and II only 错误！ 未找到引用源。 (d) 错误！ 未找到引用源。 I and III only Correct answer is (a)
12.
Which of the following is the primary function of a CPU?
错误！未找到引用源。 错误！未找到引用源。(a) To execute only the operating system's instructions 错误！未找到引用源。 错误！未找到引用源。(b) To determine if a program functions correctly before using it 错误！未找到引用源。 错误！未找到引用源。(c) To execute only the instructions within a user specified application 错误！未找到引用源。 错误！未找到引用源。(d) To execute any program's instructions stored in RAM Correct answer is (d)
13.
A computer clock with a speed of 100 MHz cycles how many times per second?
错误！ 未找到引用源。 (a) 错误！ 未找到引用源。 100,000,000 错误！未找到引用源。 错误！未找到引用源。 引用源 (b) 100,000 错误！ 错误！ 未找到引用源。 未找到引用源。 (c) 1,000 错误！未找到引用源。 错误！未找到引用源。 (d) 100 Correct answer is (a)
14.
The budget processor produced by Intel is called the
错误！ 错误！未找到引用 源。(a) Celeron 错误！ 错误！未找到引用 源。(b) Athlon 错误！ 错误！未找到引用 源。(c) Pentium 错误！ 错误！未找到引用 源。(d) K6 Correct answer is (a)
15.
Where is a computer's CPU located?
错误！未找到引用源。 错误！未找到引用源。(a) On a floppy disk drive 错误！未找到引用源。 错误！未找到引用源。(b) On the motherboard 错误！未找到引用源。 错误！未找到引用源。(c) On a hard disk drive 错误！未找到引用源。 错误！未找到引用源。(d) On an expansion card Correct answer is (b)
16.
Which of the following memory types holds data but requires very little power to retain its contents?
错误！未找到引用源。 错误！未找到引用源。(a) CMOS 错误！未找到引用源。 错误！未找到引用源。(b) RAM 错误！未找到引用源。 错误！未找到引用源。(c) Virtual memory
错误！未找到引用源。 错误！未找到引用源。(d) RDRAM Correct answer is (a)
17.
What is an area in the computer system unit that temporarily holds data before and after it is processed until the computer is turned off?
错误！未找到引用源。 错误！未找到引用源。(a) CMOS 错误！未找到引用源。 错误！未找到引用源。(b) RAM 错误！未找到引用源。 错误！未找到引用源。(c) ROM 错误！未找到引用源。 错误！未找到引用源。(d) Hard disk drive Correct answer is (b)
18.

The microprocessor in a multi-purpose computer is also known as the
错误！ 错误！未找到 引用源。 引用源。(a) CPU 错误！ 错误！未找到 引用源。(b) 引用源。 RAM 错误！ 错误！未找到 引用源。 引用源。(c) PCI 错误！ 错误！未找到 引用源。 引用源。(d) VGA Correct answer is (a)
1.
Which of the following kinds of projects typically requires a special type of CPU that would not be found in a desktop or mainframe computer? 错误！未找到引用源。 错误！未找到引用源。(a) Processing requests to send and receive email 错误！未找到引用源。(b) Monitoring the operation of an automobile 错误！未找到引用源。 engine 错误！未找到引用源。 错误！未找到引用源。(c) Looking up and storing information on customer accounts 错误！未找到引用源。 错误！未找到引用源。(d) Performing business calculations for a financial report
Correct answer is (b)
2.
When a computer is turned on, the central processing unit performs instructions specified by the _____ that searches the disk drive for the main operating system files. 错误！未找到引用源。 错误！未找到引用源。(a) virtual memory 错误！未找到引用源。 错误！未找到引用源。(b) CMOS 错误！未找到引用源。 错误！未找到引用源。(c) RAM BIOS 错误！未找到引用源。 错误！未找到引用源。(d) ROM BIOS
Correct answer is (d)
3.
Which of the following is the primary function of a CPU? 错误！未找到引用源。 错误！未找到引用源。(a) To execute only the operating system's instructions 错误！未找到引用源。 错误！未找到引用源。(b) To execute any program's instructions stored in RAM 错误！未找到引用源。 错误！未找到引用源。(c) To execute only the instructions within a user specified application 错误！未找到引用源。(d) To determine if a program functions correctly before 错误！未找到引用源。 using it
Correct answer is (b)
4.
Where is a computer's CPU located? 错误！未找到引用源。 错误！未找到引用源。(a) On a hard disk drive 错误！未找到引用源。 错误！未找到引用源。(b) On a floppy disk drive 错误！未找到引用源。 错误！未找到引用源。(c) On the motherboard 错误！未找到引用源。 错误！未找到引用源。(d) On an expansion card
Correct answer is (c)
5.
Which of the following manufacturers provides the Pentium family of processors for desktop computers? 错误！ 错误！ 未找到引 用源。 (a) 用源。 AMD 错误！ 未找到引 错误！ 用源。 (b) 用源。 Intel
错误！ 未找到引 错误！ 用源。 用源。(c) Cyrix 错误！ 未找到引 错误！ 用源。 用源。(d) IBM Correct answer is (b)
6.
The list of instructions that a CPU is able to execute is known as its 错误！未找到引用源。 错误！未找到引用源。(a) operands 错误！未

找到引用源。 错误！未找到引用源。(b) op codes 错误！未找到引用源。 错误！未找到引用源。(c) glossary 错误！未找到引用源。 错误！未找到引用源。(d) instruction set
Correct answer is (d)
7.
Which of the following components is (are) typically found on the motherboard of a computer? I. II. III. Expansion slots The microprocessor The CMOS memory chip
错误！ 未找到引用源。 (a) 错误！ 未找到引用源。 I, II, and III 错误！ 未找到引用源。 (b) 错误！ 未找到引用源。 I and II only 错误！ 未找到引用源。 (c) 错误！ 未找到引用源。 I and III only 错误！ 未找到引用源。 (d) 错误！ 未找到引用源。 II only Correct answer is (a)
8.
The microprocessor in a multi-purpose computer is also known as the 错误！ 错误！未找到 引用源。(a) 引用源 PCI 错误！ 错误！未找到 引用源。 引用源。(b) RAM
错误！ 错误！未找到 引用源。 引用源。(c) VGA 错误！ 错误！未找到 引用源。 引用源。(d) CPU Correct answer is (d)
9.
Which of the following is (are) true of ROM? I. II. ROM is volatile. The instructions needed to boot a computer are typically stored in ROM.
错误！ 错误！未找到引用 源。(a) II only 错误！ 错误！未找到引用 源。(b) I and II 错误！ 错误！未找到引用 源。(c) None 错误！未找到引用 错误！ 源。(d) I only Correct answer is (a)
10.
In order to retain data for future reference, volatile storage requires
错误！未找到引用源。 错误！未找到引用源。(a) the use of magnetism 错误！未找到引用源。 错误！未找到引用源。(b) media that can be removed from the computer 错误！未找到引用源。 错误！未找到引用源。(c) a constant source of electrical power 错误！未找到引用源。 错误！未找到引用源。(d) the use of optical media Correct answer is (c)
11.
What is an area in the computer system unit that temporarily holds data before and after it is processed until the computer is turned off?
错误！未找到引用源。 错误！未找到引用源。(a) RAM 错误！未找到引用源。 错误！未找到引用源。(b) ROM 错误！未找到引用源。 错误！未找到引用源。(c) CMOS 错误！未找到引用源。 错误！未找到引用源。(d) Hard disk drive
Correct answer is (a)
12.
Of the following types of memory, which is least expensive?
错误！ 错误！未找到引用 源。(a) Register 错误！ 错误！未找到引用 源。(b) L2 Cache 错误！ 错误！未找到引用 源。(c) L1 Cache 错误！ 错误！未找到引用 源。(d) DRAM Correct answer is (d)
13.
Consider Computer A, which uses a 1.2-GHz CPU, and Computer B, which uses a 1-GHz CPU. For any given program P, which of the following is true?
错误！未找到引用源。 错误！未找到引用源。(a) It cannot be determined whether program P will run faster on co

mputer A or on computer B without knowing more about program P. 错误！未找到引用源。 错误！未找到引用源。(b) Program P runs faster on Computer B than it does on computer A. 错误！未找到引用源。 错误！未找到引用源。(c) Program P runs faster on Computer A than it does on computer B. 错误！未找到引用源。(d) It takes the same amount of time for program P to run on 错误！未找到引用源。 computer A as it does on computer B. Correct answer is (a)
14.
Which of the following memory types holds data but requires very little power to retain its contents?
错误！未找到引用源。 错误！未找到引用源。(a) CMOS 错误！未找到引用源。 错误！未找到引用源。(b) Virtual memory 错误！ 找到引用源。 错误！未找到引用源。(c) RDRAM 错误！未找到引用源。 错误！未找到引用源。(d) RAM Correct answer is (a)
15.
Components of the CPU typically include which of the following? I. II. The control unit The Level 1 cache memory
III.
The Arithmetic/Logic Unit
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 II only 错误！未找到引用源。 错误！未找到引用源。(c) I and III 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)
16.
A computer clock with a speed of 100 MHz cycles how many times per second?
错误！ 未找到引用源。 (a) 错误！ 未找到引用源。 100 错误！ 未找到引用源。 (b) 错误！ 未找到引用源。 100,000,000 (c) 错误！ 未找到引用源。 错误！ 未找到引用源。 1,000 错误！ 未找到引用源。 (d) 错误！ 未找到引用源。 100,000 Correct answer is (b)
17.
Which of the following types of memory typically holds computer configuration settings and is powered by a small battery?
错误！ 错误！未找到引 用源。 用源。(a) CMOS 错误！未找到引 错误！ 用源。 用源。(b) ROM 错误！ 错误！未找到引 用源。 用源。(c) Flash 错误！ 错误！未找到引 用源。 用源。(d) Cache Correct answer is (a)
18.
Which of the following is (are) true of modern microprocessors? I. II. Microprocessor chips are typically the size of a deck of cards. Microprocessors typically contain millions of transistors.
错误！ 错误！未找到引用 源。(a) I and II 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) None Correct answer is (b)
1.
Input devices for a computer include which of the following? I. II. III. Digital cameras Scanners Speakers
错误！ 未找到引用源。 (a) 错误！ 未找到引用源。 III only 错误！ 未找到引用源。 (b) 错误！ 未找到引用源。 I, II, and III 错误！ 未找到引用源。 (c) 错误！ 未找到引用源。 I and II o

nly (d) 错误！ 未找到引用源。 错误！ 未找到引用源。 I and III only Correct answer is (c)
2.
Ethernet cards are used to provide a computer a connection to which of the following? 错误！未找到引用源。 错误！未找到引用源。(a) Another computer via the telephone lines 错误！未找到引用源。 错误！未找到引用源。(b) Local area networks 错误！未找到引用源。 错误！未找到引用源。(c) High speed input/output devices 错误！未找到引用源。(d) Large capacity storage 错误！未找到引用源。 devices
Correct answer is (b)
3.
Which of the following is a relatively new and flexible interface for connecting many perse input/output devices to a computer through a single port? 错误！未找到引用源。 错误！未找到引用源。 (a) AGP 错误！未找到引用源。 错误！未找到引用源。
(b) parallel port 错误！未找到引用源。 错误！未找到引用源。 (c) serial port 错误！未找到引用源。 错误！未找到引用源。 (d) USB Correct answer is (d)
4.
Which of the following is (are) true of USB computer connections? I. II. A USB hub can support up to 127 devices. Typically, USB devices can be connected without restarting the computer.
错误！ 错误！未找到引用 源。(a) I only 错误！ 错误！未找到引用 源。(b) None 错误！ 错误！未找到引用 源。(c) I and II 错误！ 错误！未找到引用 源。(d) II only Correct answer is (c)
5.
Which of the following is (are) true of a bus on the motherboard? I. II. III. A bus is not critical to the overall performance of a computer system. A bus is used to transport data between components on the motherboard. The CPU and other components use a bus to read and write data into RAM.
错误！未找到引用源。 错误！未找到引用源。(a) I and III only 错误！未找到引用源。 错误！未找到引用源。(b) I and II only 错误！未找到引用源。 错误！未找到引用源。(c) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(d) II and III only Correct answer is (d)
6.
A monitor is primarily which kind of device? 错误！未找到引用源。(a) An 错误！未找到引用源。 output device 错误！未找到引用源。 错误！未找到引用源。(b) A
memory device 错误！未找到引用源。 错误！未找到引用源。(c) An input device 错误！未找到引用源。 错误！未找到引用源。(d) A storage device Correct answer is (a)
7.
Which of the following are primarily input devices? I. II. III. Mouse Scanner Printer
错误！未找到引用源。 错误！未找到引用源。(a) I and II only 错误！未找到引用源。 错误！未找到引用源。(b) II and III only 错误！未找到引用源。 错误！未找到引用源。(c) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(d) I and III only Correct answer is (a)
8.
Which of th

e following is (are) true of computer printers? I. II. Typically, ink-jet printers have a lower cost per page than laser printers. Ink-jet printers are typically faster than laser printers.
错误！ 错误！未找到引用 源。(a) None 错误！ 错误！未找到引用 源。(b) I only 错误！ 错误！未找到引用 源。(c) II only 错误！ 错误！未找到引用 源。(d) I and II Correct answer is (a)
9.
Which of the following are true of Universal Serial Bus (USB)? I. II. A large number of devices can potentially be interconnected using the USB. It is used with many types of devices for transferring large amounts of data.
III.
It supports existing serial- and parallel-port devices.
错误！未找到引用源。 错误！未找到引用源。(a) II and III only 错误！未找到引用源。 错误！未找到引用源。(b) 引用源 I, II, and III 错误！未找到引用源。 错误！未找到引用源。(c) I and III only 错误！未找到引用源。 错误！未找到引用源。(d) I and II only Correct answer is (d)
10.
Which of the following are important considerations when purchasing a monitor? I. II. III. The number of resolution modes supported The different levels of color depth supported The size of the viewing area that can be projected
错误！ 错误！未找到引用源。 未找到引用源。(a) I and III only 错误！ 错误！未找到引用源。 未找到引用源。(b) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(c) II and III only 错误！ 错误！未找到引用源。 未找到引用源。(d) I and II only Correct answer is (b)
11.
Which of the following considerations is (are) important when purchasing a graphics card for a computer? I. II. III. The type of printer The type of bus interface to be used by the graphics card Whether the card has a graphics processor to speed up processing
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) II and III only 错误！未找到引用源。 错误！未找到引用源。(c) I and III only 错误！未找到引用源。 错误！未找到引用源。(d)
I and II only Correct answer is (b)
12.
One advantage of an LCD monitor is
错误！未找到引用源。 错误！未找到引用源。(a) compactness 错误！未找到引用源。 错误！未找到引用源。(b) increased radiation emission 错误！未找到引用源。(c) low price 错误！未找到引用源。 错误！未找到引用源。 错误！未找到引用源。(d) brightness Correct answer is (a)
13.
Which of the following devices is involved in both frequent and large data transfers?
错误！ 错误！未找到引用 源。(a) Scanner 错误！ 错误！未找到引用 源。(b) Monitor 错误！ 错误！未找到引用 源。(c) Keyboard 错误！ 错误！未找到引用 源。(d) Printer Correct answer is (b)
14.
A computer bus that t

ransfers data twice per cycle is said to be double
错误！ 未找到引用源。 错误！ 未找到引用源。 (a) timed 错误！ 未找到引用源。 错误！ 未找到引用源。 (b) pumped 错误！ 未找到引用源。 错误！ 未找到引用源。 (c) wide 错误！ 未找到引用源。 错误！ 未找到引用源。 (d) channeled Correct answer is (b)
15.
Laptop computers typically contain _____ slots.
错误！ 错误！未找到引用 源。(a) PCMCIA 错误！ 错误！未找到引用 源。(b) DB-9 错误！ 错误！未找到引用 源。(c) AGP
错误！ 错误！未找到引用 源。(d) ISA Correct answer is (a)
16.
Which of the following components is (are) found on an accelerated graphics card? I. II. III. A processor Video memory EIDE
错误！未找到引用源。 错误！未找到引用源。(a) II and III only 错误！未找到引用源。 错误！未找到引用源。(b) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(c) I and III only 错误！未找到引用源。 错误！未找到引用源。(d) I and II only Correct answer is (d)
17.
Computer output devices include which of the following? I. II. III. Projector Microphone Printer
错误！ 错误！未找到引用源。 未找到引用源。(a) I and III only 错误！ 错误！未找到引用源。 未找到引用源。(b) I and II only 错误！未找到引用源。 错误！未找到引用源。(c) II and III only 错误！ 错误！未找到引用源。 未找到引用源。(d) I, II, and III Correct answer is (a)
18.
Which of the following is (are) true of CRT monitors? I. II. CRT monitors are typically used in notebook computers. CRT monitors use electron beams to create colored light.
错误！ 错误！未找到引用
源。(a) I and II 错误！ 错误！未找到引用 源。(b) None 错误！ 错误！未找到引用 源。(c) I only 错误！ 错误！未找到引用 源。(d) II only Correct answer is (d)
19.
Desktop computer expansion slots include which of the following? I. II. III. PCMCIA PCI AGP
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 II only 错误！未找到引用源。 错误！未找到引用源。(c) I and III 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 (d)
20.
Which of the following is not true when comparing ink-jet printers with laser printers?
错误！ 未找到引用源。 Ink-jet and laser printers have a similar cost per printed page when (a) 错误！ 未找到引用源。 printing large quantities of pages. 错误！未找到引用源。 错误！未找到引用源。(b) Ink jets have a slower print speed. 错误！ 未找到引用源。 Both ink-jet and laser printers produce fairly high quality graphics. (c) 错误！ 未找到引用源。 错误！未找到引用源。 错误！未找到引用源。(d)

Laser printers have a wide price range and are more expensive than ink jets. Correct answer is (a)
1.
When purchasing a hard disk drive, which of the following are major considerations in deciding between hard disk drives that are similar in price and capacity? I. II. III. The speed at which their platters rotate The length of their access times The speed with which they transfer data to primary memory
错误！未找到引用源。 错误！未找到引用源。(a) II and III only 错误！未找到引用源。 错误！未找到引用源。(b) I and II only 错误！未找到引用源。 错误！未找到引用源。(c) III only 错误！未找到引用源。 错误！未找到引用源。(d) I, II, and III Correct answer is (d)
2.
Of the following types of storage, which provides the fastest access to data? 错误！ 错误！未找到引用 源。(a) RAM 错误！ 错误！未找到引用 源。(b) CD-ROM 错误！ 错误！未找到引用 源。(c) hard disk 错误！未找到引用 错误！ 源。(d) cache
Correct answer is (d)
3.
Which of the following are appropriate storage media for archiving the tens of millions of bytes of data typically found on a PC hard disk drive? I. II. III. A floppy disk A magnetic tape cassette A Jaz disk
错误！未找到引用源。 错误！未找到引用源。(a) I and II only 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, II, and III 错误！未找到引用源。 错误！未找到引用源。(d) II and III only Correct answer is (d)
4.
Which of the following is (are) true regarding flash memory storage devices? I. Flash memory storage devices are generally used in small devices like digital cameras and personal digital assistants.
II.
CompactFlash and SmartMedia cards are examples of flash memory storage devices.
错误！ 错误！未找到引用 源。(a) None 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 and II 错误！ 错误！未找到引用 源。(d) I only Correct answer is (c)
5.
Of the following storage media, which has the largest capacity? 错误！未找到引用源。 错误！未找到引用源。(a) CD-ROM 错误！未找到引用源。 错误！未找到引用源。(b) High density (HD) floppy disks 错误！未找到引用源。 错误！未找到引用源。(c) DVD 错误！未找到引用源。 错误！未找到引用源。(d) CompactFlash card
Correct answer is (c)
6.
Which of the following is true of hard disk drives? 错误！未找到引用源。 错误！未找到引用源。(a) Their capacity is currently measured in MB. 错误！未找到引用源。 错误！未找到引用源。(b) They require power to retain information. 错误！未找到引用源。 错误！未找到引用源。(c) They use magnetic material to store information. 错误！未找到引用源。 错误！未找到引用源。(

d) Their access times are generally twice as long as RAM access times.
Correct answer is (c)
7.
Examples of magnetic media include which of the following? I. II. III. Floppy disks Zip disks Hard disks
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 and II 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)
8.
Which of the following is (are) true regarding floppy disks and Zip disks? I. II. Zip disks are capable of storing more data than floppy disks. Floppy disks transfer data more quickly than Zip disks.
错误！ 错误！未找到引用 源。(a) II only 错误！ 错误！未找到引用 源。(b) I only 错误！ 错误！未找到引用 源。(c) I and II 错误！ 错误！未找到引用 源。(d) None Correct answer is (b)
9.
Using a single EIDE interface, a total of _____ devices can be accommodated. 错误！ 错误！未找到引 用源。 用源。(a) seven 错误！ 错误！未找到引 用源。 eight (b) 用源。 错误！ 错误！未找到引 用源。 用源。(c) two 错误！ 错误！未找到引 用源。 用源。(d) four
Correct answer is (d)
10.
Which of the following is (are) true regarding flash memory? I. II. It uses electronic charges for recording data. It makes use of moving parts inside the chip for storing data.
错误！ 错误！未找到引用 源。(a) I and II 错误！ 错误！未找到引用 源。(b) I only 错误！ 错误！未找到引用
源。(c) None 错误！ 错误！未找到引用 源。(d) II only Correct answer is (b)
1.
How are data files compressed into shorter sequences of bytes? 错误！未找到引用源。 错误！未找到引用源。(a) By replacing long sequences of identical data with a special coded format 错误！未找到引用源。 错误！未找到引用源。(b) By using higher speed disks, enabling them to be read back faster 错误！未找到引用源。 错误！未找到引用源。(c) By using higher density disk and RAM components (d) 错误！ 未找到引用源。 By writing in the empty spaces between the sectors on a disk 错误！ 未找到引用源。 drive
Correct answer is (a) 2. In the future, continued technological advances that follow Moore's Law are 错误！ 错误！未找到引用源。(a) limited by the purity of silicon, iron, and copper used to make high 未找到引用源。 quality semiconductors 错误！ 未找到引用源。 limited by the availability of silicon from which to make high quality (b) 错误！ 未找到引用源。 semiconductors 错误！未找到引用源。 错误！未找到引用源。(c) not limited and will continue on throughout the 21st century 错误！未找到引用源。 错误！未找到引用源。(d) limited by the ability to shrink circuit paths to sizes sm

aller than an atom Correct answer is (d)
3.
What is the general term used to describe the process of recoding data so that it requires fewer bytes of storage space? 错误！未找到引用源。(a) Data 错误！未找到引用源。 compression 错误！未找到引用源。 错误！未找到引用源。(b) Run length encoding 错误！未找到引用源。 错误！未找到引用源。(c) Rationing 错误！未找到引用源。 错误！未找到引用源。(d) Encoding
Correct answer is (a)
4.
If Moore's Law holds true for disk capacities and if the largest disk currently available is 10GB, what is predicted to be the largest disk capacity six years from now, assuming an 18 month cycle to double capacity? 错误！ 错误！未找到引用
源。(a) 100 GB 错误！ 错误！未找到引用 源。(b) 60 GB 错误！ 错误！未找到引用 源。(c) 160 GB 错误！ 错误！未找到引用 源。(d) 640 GB Correct answer is (c)
5.
Which of the following create performance bottlenecks? I. II. III. Disk access speed is too slow when compared to CPU processing speed. RAM access speed is too slow when compared to CPU processing speed. Bus transfers to network cards and video cards are too slow when compared to CPU processing speed.
错误！未找到引用源。 错误！未找到引用源。(a) I and II only 错误！未找到引用源。 错误！未找到引用源。(b) II and III only 错误！未找到引用源。 错误！未找到引用源。(c) I, II, and III 错误！未找到引用源。 错误！未找到引用源。(d) I and III only Correct answer is (c)
6.
Which of the following areas of computer technology does Moore's Law impact in some way? I. II. III. Cost of software Processor speeds Amount of RAM on a chip
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。(b) 错误！未找到引用源。 II and III only 错误！未找到引用源。 错误！未找到引用源。(c) I and III only 错误！未找到引用源。 错误！未找到引用源。(d) I and II only Correct answer is (b)
7.
According to Parkinson's Law of Data, additional memory 错误！未找到引用源。 错误！未找到引用源。(a) encourages the use of memory intensive techniques 错误！未找到引用源。 错误！未找到引用源。(b) results in decreased use of memory 错误！未找到引用源。 错误！未找到引用源。(c) always requires additional RAM 错误！未找到引用源。(d) requires the CPU to run programs 错误！未找到引用源。 faster
Correct answer is (a)
8.
Which of the following is (are) true regarding bottlenecks that degrade the performance of a computer system? I. II. Slow transfer of data between components in a system constitutes a bottleneck. A slow video card can constitute a bottleneck for graphics applications.
错误！ 错误！未找到引用 源。(a) I and II 错误！ 错误！未找到引用 源。(b) I only

错误！未找到引用 错误！ 源。(c) None 错误！ 错误！未找到引用 源。(d) II only Correct answer is (a)
9.
Which of the following kinds of files can be significantly compressed, while having little impact on the processing speed of other running applications when the compressed file data is accessed? 错误！未找到引用源。 错误！未找到引用源。(a) Small binary files 错误！未找到引用源。 错误！未找到引用源。(b) Frequently used applications 错误！未找到引用源。 错误！未找到引用源。(c) Infrequently used large text files 错误！未找到引用源。 错误！未找到引用源。(d) Operating system files
Correct answer is (c)
10.
Which of the following is a reason for degradation in computer system performance due to insufficient RAM?
错误！未找到引用源。 错误！未找到引用源。(a) The processor performance will be less than optimal.
错误！未找到引用源。 错误！未找到引用源。(b) It takes a longer time to transfer data from the hard disk to the cache. 错误！未找到引用源。 错误！未找到引用源。(c) Instructions have to be loaded frequently from the hard disk. 错误！未找到引用源。 错误！未找到引用源。(d) It takes a longer time to transfer data from the peripheral devices to the chipset. Correct answer is (c) 2. Which bus transfers data between the CPU and the chipset? 错误！未找到引用源。 错误！未找到引用源。(a) Memory 错误！未找到引用源。 错误！未找到引用源。(b) 引用源 PCI 错误！未找到引用源。 错误！未找到引用源。(c) Front side 错误！未找到引用源。 错误！未找到引用源。(d) AGP Correct answer is (c) 4. The speed of a computer bus is measured in _____, whereas the transfer rate is measured in _____. 错误！ 未找到引用源。 hertz, (a) 错误！ 未找到引用源。 Bps 错误！未找到引用源。 错误！未找到引用源。(b) bits, channels 错误！未找到引用源。 错误！未找到引用源。(c) channels, bits 错误！未找到引用源。 错误！未找到引用源。(d) Bps, hertz Correct answer is (a) 16. A parallel port can be used to connect a computer to a
错误！未找到引用源。 错误！未找到引用源。 (a) monitor 错误！未找到引用源。 错误！未找到引用源。 (b) keyboard 错误！未找到引用源。 错误！未找到引用源。 (c) mouse 错误！未找到引用源。 错误！未找到引用源。 (d) printer Correct answer is (d)
10.
Of the following, which best describes what happens when a user opens a document for
editing? 错误！未找到引用源。 错误！未找到引用源。(a) The document image is directly edited on the disk where it resides. 错误！未找到引用源。 错误！未找到引用源。(b) A copy of the document is loaded from the disk into cache memory and edited in the cache. 错误！未找到引用源。 错

误！未找到引用源。(c) The document image is moved to free space on the disk where the image is directly edited. 错误！未找到引用源。 错误！未找到引用源。(d) A copy of the document is loaded from the disk into RAM and edited in RAM. Correct answer is (d)
3.
Consumer demand for more powerful desktop computers continues to grow at a rapid pace, keeping up with the technological advances predicted by Moore's Law. If a user purchased a state-of-the-art computer 18 months ago, what should such a user expect to pay for a computer today that is twice as powerful as the computer that is now 18 months old? 错误！未找到引用源。 错误！未找到引用源。(a) Approximately half the amount of money paid for the old computer 错误！未找到引用源。 错误！未找到引用源。(b) Approximately the same amount of money paid for the old computer 错误！ 未找到引用源。 Approximately three times the amount of money paid for the old computer (c) 错误！ 未找到引用源。 错误！未找到引用源。 错误！未找到引用源。(d) Approximately twice the amount of money paid for the old computer Correct answer is (b)
6.
Which of the following is a reason for degradation in computer system performance due to insufficient cache memory? 错误！未找到引用源。 错误！未找到引用源。(a) It takes a longer time to transfer data from the peripheral devices to the chipset. 错误！未找到引用源。 错误！未找到引用源。(b) The processor performance will be less than optimal. 错误！未找到引用源。 错误！未找到引用源。(c) It takes a longer time to transfer data from the hard disk to the cache. 错误！未找到引用源。 错误！未找到引用源。(d) Instructions have to be loaded frequently from the hard disk. Correct answer is (b)
2.
Which of the following is (are) true regarding integrated circuits and microprocessors? I. II. Integrated circuits contain more electrical components than microprocessors. Microprocessors must be manufactured for each application separately, while integrated circuits can be reused.
错误！ 错误！未找到引用 源。(a) I and II 错误！ 错误！未找到引用 源。(b) None
错误！ 错误！未找到引用 源。(c) II only 错误！ 错误！未找到引用 源。(d) I only Correct answer is (b)
1.
Which of the layers of software that make up a computer system provides applications with direct access to the operating system? 错误！未找到引用源。 错误！未找到引用源。(a) Device drivers 错误！未找到引用源。 错误！未找到引用源。(b) The BIOS 错误！未找到引用源。 错误！未找到引用源。(c) Scripts 错误！未找到引用源。 错误！未找到引用源。(d) The API
Correct answer is (d)
2.
How does the operating system support multiple applications running concurrently on a computer with a single CPU? 错误！未找到引用源。 错误

！未找到引用源。(a) The operating system creates an environment for the simultaneous execution of applications. 错误！未找到引用源。 错误！未找到引用源。(b) The operating system contains accounts for multiple users. 错误！未找到引用源。 错误！未找到引用源。(c) The operating system quickly switches the CPU back and forth between applications. 错误！未找到引用源。 错误！未找到引用源。(d) The operating system continues to run at the same time input/output devices are running.
Correct answer is (c)
3.
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) Applications and hardware devices 错误！未找到引用源。 错误！未找到引用源。(b) Different hardware devices 错误！未找到引用源。 错误！未找到引用源。(c) The operating system and hardware devices 错误！未找到引用源。 错误！未找到引用源。(d) The operating system and applications using hardware devices
Correct answer is (c)
4.
Which of the following steps are performed by the BIOS during the boot process? I. II. Locating a disk drive that has an operating system to be loaded Loading the necessary device drivers needed by the operating system
III.
Loading into RAM the program to load the operating system
错误！ 错误！未找到引用源。 未找到引用源。(a) I and III only 错误！ 错误！未找到引用源。 未找到引用源。(b) I and II only 错误！未找到引用源。 错误！未找到引用源。(c) II and III only 错误！ 错误！未找到引用源。 未找到引用源。(d) I, II, and III Correct answer is (a)
5.
Which of the following consequences are likely to happen when increasing the amount of time that each application can use the CPU, before the operating system preempts to allow another application to use the CPU? I. II. III. A runnable process will have a greater amount of access to the CPU once it becomes a running task. There will be fewer blocked processes. Fewer processes can be multitasked by the operating system.
错误！未找到引用源。 错误！未找到引用源。(a) II and III only 错误！未找到引用源。 错误！未找到引用源。(b) I, II, and III 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) I and II only Correct answer is (c)
6.
Which of the following software layer sequences correctly represents the task of saving a file with a text editor? 错误！ 未找到引用源。 operating system, application, hardware, (a) 错误！ 未找到引用源。 device driver 错误！未找到引用源。 错误！未找到引用源。(b) operating system, device driver, application, hardware 错误！ 未找到引用源。 application, operating system, hardware, 错误！ 未找到引用源。(c) device driver 错误！未找到引

用源。 错误！未找到引用源。(d) application, operating system, device driver, hardware
Correct answer is (d)
7.
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 II 错误！ 错误！未找到引用 源。(b) I only 错误！ 错误！未找到引用 源。(c) II only 错误！ 错误！未找到引用 源。(d) I and III Correct answer is (d)
8.
Which of the following could contain a Master Boot Record? I. II. III. Hard disk drive Floppy disk drive RAM
错误！未找到引用源。 错误！未找到引用源。(a) II and III only 错误！未找到引用源。 错误！未找到引用源。(b) I and II only 错误！未找到引用源。 错误！未找到引用源。(c) I and III only 错误！未找到引用源。 错误！未找到引用源。(d) I, II, and III Correct answer is (b)
9.
Which of the following is not a reason why similar hardware products typically include their own device drivers to be installed on the system? 错误！未找到引用源。 错误！未找到引用源。(a) The new driver corrects problems that were discovered in the application's interface to the device driver. 错误！未找到引用源。 错误！未找到引用源。(b) The operating system was released prior to the hardware product becoming available. 错误！未找到引用源。 错误！未找到引用源。(c) The hardware interface may be proprietary to a vendor. 错误！ 未找到引用源。 The hardware interface on one vendor's product may support more (d) 错误！ 未找到引用源。 functionality.
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

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