计算机导论选择题quiz1-7(4)

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)