Chapter 03 : Computer Hardware Solution

Description

Chapter 03 : Computer Hardware Solution

True / False Questions

1. All computers are systems of input, processing, output, storage, and distribution components.

True    False

2. The first electronic digital computer was completed in the 1960s.

True    False

3. Personal computers, network servers, and technical workstations are terms used to highlight major uses of particular types of computers.

True    False

4. Experts predict the merging or disappearance of several computer categories. For example, many midrange and mainframe systems have been made obsolete by the power and versatility of client/server networks composed of microcomputers and servers.

True    False

5. Network servers are the most important category of computer systems for both businesspeople and individual consumers.

True    False

6. The computing power of microcomputers currently exceeds that of the mainframe computer of previous generations, at a fraction of the cost.

True    False

7. Some microcomputers are powerful enough to support applications with heavy mathematical computing and graphics display demands, such as computer-aided design (CAD) or investment analysis.

True    False

8. Network servers are some of the less powerful microcomputers; they are used to coordinate telecommunications and resource sharing in small LANs and in Internet and intranet websites.

True    False

9. The top criteria for corporate PC ownership are operating system ready, connectivity, solid performance, and global compatibility.

True    False

10. Today’s corporate buyers seek networked PCs equipped with reliable wireless capabilities.

True    False

11. Web-enabled personal digital assistants use touch screens, pen-based handwriting recognition, or keyboards, so mobile workers can send and receive e-mail, access the Web, and exchange information with their desktop PCs or Web servers.

True    False

12. Midrange computers are often used as network servers in order to help manage large Internet websites, corporate intranets and extranets, and client/server networks.

True    False

13. Microcomputers can act as powerful workstations for computer-aided design and other computation and graphics-intensive applications.

True    False

14. A RIM Blackberry combines a mobile phone, a music and video player, and an Internet communications device.

True    False

15. The function of an input device is to interpret computer program instructions and to transmit directions to the other components of the computer system.

True    False

16. The central processing unit (CPU) is the main processing component of a computer system.

True    False

17. The output devices of a computer system can include video display units, scanners, and printers.

True    False

18. The control unit of the CPU interprets instructions and directs processing.

True    False

19. The clock speed of a microprocessor today is commonly expressed in teraflops; earlier microcomputer speeds were reported in gigahertz.

True    False

20. Moore’s Law refers to the exponential growth in the number of transistors per integrated circuit, which quadruples computer power every six months.

True    False

21. When discussing the concept of a computer system, peripherals is the generic name given to all input, output, and secondary storage devices that are part of a computer system.

True    False

 

22. Peripherals depend on direct connections or telecommunications links to the central processing unit of a computer system.

True    False

23. Offline devices are separate from, but can be electronically connected to and controlled by, a CPU.

True    False

24. A pointing stick is the most popular pointing device used today.

True    False

25. A trackball is a type of pointing device that converts drawings and other graphic images into digital data in order to enter it into a computer system.

True    False

26. Some touch screens emit a grid of infrared beams or sound waves that is broken when the screen is touched.

True    False

27. Pen-based computing technologies are being used in many hand-held computers and personal digital assistants.

True    False

28. Speech recognition systems typically require training the computer to recognize your voice and its unique sound patterns in order to achieve a high degree of accuracy.

True    False

29. Speaker independent voice recognition systems allow a computer to understand a few words from a voice it has never heard before.

True    False

30. Optical scanning enables the direct entry of data from source documents into a computer system.

True    False

31. OCR technology is used to read codes on merchandise tags, product labels, credit card receipts, and other documents.

True    False

32. The dark, magnetic stripe on the back of credit cards can hold about 200 gigabytes of information.

True    False

 

33. Smart cards, a form of input technology that contains an embedded microprocessor chip, are becoming popular in the United States for use in debit and credit cards.

True    False

34. Digital cameras and digital video cameras enable users to shoot, store, and download still photos or full-motion video and audio onto their PCs.

True    False

35. Video displays and printed documents have been, and still are, the most common forms of output from computer systems.

True    False

36. Advances in video monitor technology, such as active matrix and dualscan capabilities, have improved the color, but not the clarity, of LCD displays.

True    False

37. Printing information on paper is the most common form of information output.

True    False

38. One of the major trends in secondary storage has been toward massive capacities using magnetic and optical media.

True    False

39. High speed storage media cost less per byte and provide higher capacities than lower-speed storage media.

True    False

40. Data are processed and stored in a computer system through the presence or absence or electronic or magnetic signals to the computer. This is called a “bi-state” representation of data, because the computer and the media can exhibit only two states or conditions.

True    False

41. A byte typically consists of ten bits and represents one character of data in most computer coding schemes.

True    False

42. Magnetic tape devices are frequently called direct access storage devices (DASDs), while magnetic disks are known as sequential access devices.

True    False

43. The terms direct access and random-access describe the same concept.

True    False

 

44. The primary storage (main memory) of a computer consists of microelectronic semiconductor memory chips.

True    False

45. Random Access Memory (RAM) is non-volatile memory.

True    False

46. ROM chips are widely used as a primary storage medium because they can be erased and overwritten.

True    False

47. Magnetic disks are common forms of secondary storage because they provide fast access and high storage capacity at a reasonable cost.

True    False

48. RAID disk units provide fault tolerant storage capacity because data can be recovered from backup copies stored on other disks should one disk fail.

True    False

49. Magnetic tapes are no longer used by businesses today because the cost of storage on tape is very expensive compared to other types of storage media.

True    False

50. Most CD-ROM disks can hold more than 600 megabytes of information.

True    False

51. The main advantage of CD-R (compact disk-recordable) disks is that they enable recorded data to be erased many times.

True    False

52. DVD+RW+R with CD-RW provides an all-in-one drive for burning DVD-RW or DVD-R disks, burning CDs, and reading DVDs and CDs.

True    False

53. Active RFID chips are self-powered and must be close to the reader to transmit their signal.

True    False

54. RFID chips may be attached to objects, but cannot be injected into them because it interferes with radio signal transmission.

True    False

55. The use of RFID technology poses concerns for privacy issues.

True    False

56. It is predicted that in the future we will be able to back up our biological memories.

True    False

Multiple Choice Questions

57. Computer systems rely on all the following components except _______________.
58. input
59. internet
60. processing
61. storage
62. Computer systems rely on which of the following components?
63. Input, processing, output, storage, and control
64. Input, processing, output, storage, and the Internet
65. The Internet, processing, output, storage, and control
66. Input, processing, output, the Internet, and control
67. The mechanical loom was invented by _______________.
68. Blaise Pascal
69. Joseph Jacquard
70. Herman Hollerith
71. Keith Glennan
72. The first generation of computers relied on _______________.
73. miniaturized circuits
74. transistors
75. vacuum tubes
76. punch cards
77. The second generation of computers relied on _______________.
78. miniaturized circuits
79. transistors
80. vacuum tubes
81. punch cards
82. In the 1950s, _______________ were invented and quickly replaced the thousands of vacuum tubes used in electronic computers.
83. microchips
84. resistors
85. transistors
86. miniaturized circuits
87. The third generation of computers relied on _______________.
88. solid state technology and integrated circuits
89. transistors
90. vacuum tubes
91. punch cards
92. The first electronic digital computer was completed in the _______________.
93. 1870s
94. 1940s
95. 1950s
96. 1960s
97. The _______________ generation of computers was characterized by further miniaturization of circuits, increased multiprogramming, and virtual storage memory.
98. second
99. third
100. fourth
101. fifth
102. _______________ are the most important category of computer systems for both businesspeople and individual consumers.
103. Microcomputers
104. Supercomputers
105. Network Servers
106. Mainframes
107. According to the text, which of the following is considered by millions of computer users to be the primary function of the desktop PC?
108. Allows access to the Internet
109. Increases productivity through the use of software applications
110. Facilitates creation of local area networks
111. All of the choices are correct
112. Which of the following statements best describes a workstation computer?
113. Supports applications with heavy mathematical computing and graphics display demands, such as computer-aided design (CAD)
114. Coordinates telecommunications and resource sharing in small, local area networks (LANS)
115. Allows convenient mobile communications and touch-screen computing
116. All of the choices are correct.
117. __________ are some of the more powerful microcomputers; they are used to coordinate telecommunications and resource sharing in small LANs and in Internet and intranet websites.
118. Mainframes
119. Supercomputers
120. Network Servers
121. None of the choices are correct.
122. According to the text, using web-enabled PDAs allows workers to realize all the following benefits except:
123. Send and receive email
124. Access the Web
125. Exchange information with desktop PCs or Web servers
126. Helps retain younger and more technologically savvy employees
127. An intelligent terminal that can perform data entry and some information processing tasks independently is called a _______________ terminal.
128. transaction
129. dumb
130. Windows
131. remote
132. Which of the following does not apply to a personal digital assistant (PDA)?
133. Supports applications with heavy mathematical computing
134. Touchscreens
135. Pen-based handwriting recognition
136. Web access
137. Personal digital assistants most commonly use which of these technologies?
138. Pen-based computing
139. Optical scanning
140. Jump drives
141. Back-lit keyboards
142. What sets the RIM BlackBerry apart from other wireless PDA solutions?
143. Lower price
144. It is always on and connected
145. Smaller size and weight
146. Longer battery life
147. A BlackBerry ____________________.
148. performs common PDA functions
149. doesn’t have a visible antenna
150. uses the same network as most mobile phones
151. All of the choices are correct.
152. _______________ are high-end network servers that handle large-scale processing of business applications.
153. Midrange computers
154. Mainframes
155. Supercomputers
156. All of the choices are correct.
157. _______________ are popular as powerful network servers to help manage large Internet Websites, intranets, and extranets.
158. Workstations
159. Minicomputers
160. Supercomputers
161. Mainframes
162. Which of the following is a common application for a midrange computer?
163. Internet functions.
164. Integrated enterprise-wide manufacturing and distribution.
165. Financial applications.
166. All of the choices are correct.
167. According to the text, which of the following is not true of Mainframes?
168. Mainframes can process thousands of million instructions per second (MIPS).
169. Mainframes are large, fast, and powerful.
170. Mainframes have large storage capacities.
171. All of the choices are correct.
172. Which of the following would not be considered a characteristic of supercomputer systems?
173. Costs between $5 million and $50 million.
174. Used for global weather reports and military defense.
175. Runs the same software found on most home computers, but at faster speeds
176. Designed specifically for high-speed numeric computation
177. The function of an input device is:
178. to interpret computer program instructions
179. to transmit directions to other components of the computer system
180. to convert data into electronic form for entry into a computer system
181. none of the above
182. The central processing unit (CPU):
183. is the main processing component of a computer system
184. controls all the peripheral devices of a computer system
185. is controlled by the RAID unit
186. is also called a Fuzzy Logic unit
187. The output devices of a computer system include:
188. printers and video displays
189. the Arithmetic-logic unit
190. scanners and RAID units
191. the Fuzzy Logic unit

 

 

84. The central processing unit (CPU) consists of:
85. the Control unit and the RAID unit
86. Arithmetic-logic unit and the RAID unit
87. the RAID unit and the Fuzzy Logic unit
88. the Control unit and the Arithmetic-logic unit
89. Which of the following would perform the required mathematical and logic operations of a central processing unit (CPU)?
90. Control unit
91. Arithmetic-logic unit
92. RAID unit
93. Fuzzy logic unit
94. The function of an output device is to:
95. Convert data into an electronic machine-readable form for direct entry into a computer system
96. Perform the arithmetic and logic functions required in computer processing
97. Convert electronic information produced by the computer system into human-intelligible form for presentation to end-users
98. Store the data and program instructions needed for processing
99. Which of the following is a secondary storage device?
100. Primary memory
101. Random access memory
102. Magnetic disk
103. The CPU
104. According to Moore’s Law, _______________ doubles every 18 to 24 months.
105. computing power
106. computer prices
107. computer storage capacity
108. the number of functioning computers
109. Which of the following would not fit the typical classification of a computer peripheral?
110. Monitors and printers
111. Scanners and hard disk drives
112. CD-ROM drives and backup systems
113. Central processing unit
114. Offline devices:
115. are directly attached to the CPU
116. are not controlled by the CPU
117. are controlled by the CPU
118. can replace the CPU

 

91. The most popular pointing device used today is the _______________.
92. pointing stick
93. light pen
94. trackball
95. electronic mouse
96. All of the following relate to Peripherals except:
97. input devices
98. output devices
99. CPU devices
100. secondary storage devices
101. One device used as an input device in a computer system is a pointing stick, which is best described as:
102. A small gearshift lever set in a box
103. A stationary device containing a roller ball whose top is exposed outside its case
104. A pen-shaped device with a ballpoint at the end
105. A small, button-like device, sometimes likened to the eraser head of a pencil
106. A touchpad is best described as a:
107. Small, rectangular, touch-sensitive surface usually placed below the keyboard
108. Stationary device containing a roller ball whose top is exposed outside its case
109. Pen-shaped device with a ballpoint at the end
110. Device rolled along the desktop in order to move the cursor on the screen
111. Continuous speech recognition systems:
112. Compare speech patterns to a dictionary
113. Allow a computer to understand a few words from a voice it has never heard before
114. Require users to pause between each spoken word
115. Recognize conversationally paced speech
116. Speech recognition devices in work situations allow operators to perform all the following except:
117. Enter data without using their hands.
118. Input data faster.
119. input data more accurately.
120. Input data without using a computer.
121. Speaker independent voice recognition systems:
122. Compare speech patterns to a dictionary
123. Allow a computer to understand a few words from a voice it has never heard before
124. Require users to pause between each spoken word
125. All of the choices are correct.

 

98. Which of the following best describes optical scanning devices?
99. Hand-held wands used to read data on merchandise tags
100. Photoelectric devices that scan data
101. Converts reflected light patterns into electronic impulses, which are accepted as input into the computer system
102. All of the choices are correct.
103. Which of the following best describes magnetic stripe technology?
104. A form of data entry that helps computers read credit cards
105. A form of computing where debit and credit cards have an embedded microprocessor chip
106. Technology that enables users to download full-motion video into a computer system
107. Technology commonly used in banks in order to magnetically read checks and deposit slips
108. The dark, magnetic stripe on the back of credit cards can hold about _______________ of information.
109. 200 gigabytes
110. 200 kilobytes
111. 200 bytes
112. Immaterial, as this technology is not yet available in the United States
113. Smart card technology:
114. Allows debit cards to store a cash balance on a card and electronically transfer some of it to others to pay for items and services
115. Is not yet available in the United States
116. Is commonly used by banks to read and process checks
117. All of the choices are correct.
118. Banks use _______________ technologies for check processing.
119. voice response
120. magnetic ink character recognition
121. laser printer
122. optical scanner
123. The most common output trend is _______________.
124. printed reports and documents
125. audio responses
126. voice responses
127. video displays
128. Which of the following is not a valid storage medium?
129. Paper documents
130. Optical disks
131. Magnetic tape
132. All of the choices are valid storage media.
133. High speed storage media _______________ than lower-speed storage media.
134. cost less per byte and provide higher capacities
135. cost less per byte and provide lower capacities
136. cost more per byte and provide higher capacities
137. cost more per byte and provide lower capacities
138. _______________ bytes of storage are needed to represent the name “Sarah.”
139. Two
140. Three
141. Five
142. Ten
143. Data are processed and stored in a computer system through the presence or absence of electronic or magnetic signals to the computer. This is called a _______________ representation of data, because the computer and the media can exhibit only two states or conditions.
144. Ternary
145. Trinary
146. Binary
147. Bipolar
148. Data are processed and stored in a computer system through the presence or absence of electronic or magnetic signals to the computer. This is called a “binary” representation of data, because the computer and the media can exhibit only _______________ states or conditions.
149. two
150. three
151. five
152. ten
153. A bit, the smallest element of data, can have values of:
154. 0 or 1
155. 0, 1, or 8
156. 0 through 7
157. 0 through 8
158. A gigabyte (GB) is used to express which of the following approximate measures?
159. 1,000 byes of storage
160. 1,000,000 bytes of storage
161. 1,000,000,000 bytes of storage
162. 1,000,000,000,000 bytes of storage
163. Which of the following is an advantage of RAID?
164. It provides virtually unlimited online storage
165. It provides high access speeds
166. It provides fault-tolerant storage capacity
167. All of the choices are advantages.
168. The primary storage (main memory) of a computer is also called:
169. ROM
170. RAID
171. RAM
172. None of the choices are correct.
173. Which of the following storage types is volatile?
174. RAM
175. ROM
176. PROM
177. All the choices are volatile.
178. Which of the following applies best to CD-RW optical disk technology?
179. Users are unable to record their own data on the disks
180. Users can record their own data, but only once
181. Users are able to record and then erase the disks
182. None of the choices are correct.
183. Which of the following statements about optical disks is true?
184. They can be read only, recordable, or rewritable
185. They can hold approximately 50 megabytes on a single disk
186. They have totally replaced “3.5” diskettes
187. They have totally replaced magnetic tape as secondary storage
188. According to the text, what are the current types of RFID chips?
189. Electrical and magnetic
190. Positive and negative
191. Active and passive
192. Red and Green