Chapter 03 Flashcards
(157 cards)
1
Q
The central processing unit (CPU):
- is the main processing component of a computer system
- controls all the peripheral devices of a computer system
- is controlled by the RAID unit
- is also called a Fuzzy Logic unit
A
1. is the main processing component of a computer system
2
Q
According to the text, which of the following is not true of Mainframes?
- Mainframes can process thousands of million instructions per second (MIPS).
- Mainframes are large, fast, and powerful.
- Mainframes have large storage capacities.
- All of the choices are correct.
A
4. All of the choices are correct.
3
Q
The output devices of a computer system include:
- printers and video displays
- the Arithmetic-logic unit
- scanners and RAID units
- the Fuzzy Logic unit
A
1. printers and video displays
4
Q
The dark, magnetic stripe on the back of credit cards can hold about _______________ of information.
- 200 gigabytes
- 200 kilobytes
- 200 bytes
- Immaterial, as this technology is not yet available in the United States
A
3. 200 bytes
5
Q
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
A
True
6
Q
The second generation of computers relied on _______________.
- miniaturized circuits
- transistors
- vacuum tubes
- punch cards
A
2. transistors
7
Q
The top criteria for corporate PC ownership are operating system ready, connectivity, solid performance, and global compatibility.
True | False
A
False
The top criteria for corporate PC ownership are operating system ready, connectivity, solid performance, and security equipped. (True)
8
Q
Computer systems rely on all the following components except _______________.
- input
- internet
- processing
- storage
A
2. internet
9
Q
All of the following relate to Peripherals except:
- input devices
- output devices
- CPU devices
- secondary storage devices
A
3. CPU devices
10
Q
Floppy disks consists of a polyester film disk covered with an _______________ compound.
A
iron oxide
11
Q
According to the text, the __________ is one of several commercial devices that takes the human-computer interface to a new level.
A
iPhone
12
Q
A touchpad is best described as a:
- Small, rectangular, touch-sensitive surface usually placed below the keyboard
- Stationary device containing a roller ball whose top is exposed outside its case
- Pen-shaped device with a ballpoint at the end
- Device rolled along the desktop in order to move the cursor on the screen
A
1. Small, rectangular, touch-sensitive surface usually placed below the keyboard
13
Q
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
A
True
14
Q
The primary storage (main memory) of a computer is also called:
- ROM
- RAID
- RAM
- None of the choices are correct.
A
3. RAM
15
Q
An electronic _______________ is a pointing device that is used to move the cursor on the screen, as well as to issue commands and make icon and menu selections. It is the most popular pointing device used today.
A
mouse
16
Q
The first electronic digital computer was completed in the 1960s.
True | False
A
False
The first electronic digital computer was completed in 1946 at the Moore School of Electrical Engineering. (True)
17
Q
The mechanical loom was invented by _______________.
- Blaise Pascal
- Joseph Jacquard
- Herman Hollerith
- Keith Glennan
A
2. Joseph Jacquard
18
Q
According to the text, using web-enabled PDAs allows workers to realize all the following benefits except:
- Send and receive email
- Access the Web
- Exchange information with desktop PCs or Web servers
- Helps retain younger and more technologically savvy employees
A
3. Exchange information with desktop PCs or Web servers
19
Q
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
A
False
A trackball is a stationary device related to the mouse. (True)
20
Q
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
A
False
Magnetic tape is a low-cost storage medium. (True)
21
Q
The function of an output device is to:
- Convert data into an electronic machine-readable form for direct entry into a computer system
- Perform the arithmetic and logic functions required in computer processing
- Convert electronic information produced by the computer system into human-intelligible form for presentation to end-users
- Store the data and program instructions needed for processing
A
3. Convert electronic information produced by the computer system into human-intelligible form for presentation to end-users
22
Q
Use of _______________ panel video monitors for desktop systems has become more common as their cost has become more affordable.
A
flat
23
Q
In the 1950s, _______________ replaced the vacuum tubes used in electronic computers.
A
transistors
24
Q
Pen-based computing technologies are being used in many hand-held computers and personal digital assistants.
True | False
A
True
25
The terms direct access and random-access describe the same concept.
True | False
**True**
26
The control unit of the CPU interprets instructions and directs processing.
True | False
**True**
27
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
**True**
28
The first electronic digital computer was completed in the \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
1. 1870s
2. 1940s
3. 1950s
4. 1960s
**2. 1940s**
29
Which of the following statements best describes a workstation computer?
1. Supports applications with heavy mathematical computing and graphics display demands, such as computer-aided design (CAD)
2. Coordinates telecommunications and resource sharing in small, local area networks (LANS)
3. Allows convenient mobile communications and touch-screen computing
4. All of the choices are correct.
**1. Supports applications with heavy mathematical computing and graphics display demands, such as computer-aided design (CAD)**
30
A RIM Blackberry combines a mobile phone, a music and video player, and an Internet communications device.
True | False
**False**
*An iPhone does all this. (True)*
31
The most recent entries to the information appliance and PDA market, from Apple, are \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**the iPhone and the iPad**
32
Which of the following applies best to CD-RW optical disk technology?
1. Users are unable to record their own data on the disks
2. Users can record their own data, but only once
3. Users are able to record and then erase the disks
4. None of the choices are correct.
**3. Users are able to record and then erase the disks**
33
A computer is a system, an interrelated combination of components that perform the basic system functions of \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_, processing, output, storage, and control.
**input**
34
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ ink allows the computer systems of the banking industry to read checks and deposit slips.
**Magnetic**
35
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
**True**
36
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ are popular as powerful network servers to help manage large Internet Websites, intranets, and extranets.
1. Workstations
2. Minicomputers
3. Supercomputers
4. Mainframes
**2. Minicomputers**
37
Most computers today can process program instructions in MIPS, which is \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**millions of instructions per second**
38
Optical scanning enables the direct entry of data from source documents into a computer system.
True | False
**True**
39
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
**False**
*This is called a "two-state" or "binary" representation of data. (True)*
40
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
**False**
*Advances in video monitor technology have improved both the color and the clarity of LCD displays. (True)*
41
Which of the following best describes magnetic stripe technology?
1. A form of data entry that helps computers read credit cards
2. A form of computing where debit and credit cards have an embedded microprocessor chip
3. Technology that enables users to download full-motion video into a computer system
4. Technology commonly used in banks in order to magnetically read checks and deposit slips
**1. A form of data entry that helps computers read credit cards**
42
The principal drawback of the Electronic Numerical Integrator and Computer (ENIAC) was its __________ and processing ability.
**size**
43
A bit, the smallest element of data, can have values of:
1. 0 or 1
2. 0, 1, or 8
3. 0 through 7
4. 0 through 8
**1. 0 or 1**
44
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
**False**
*The function of an input device is to convert data into electronic form for entry into a computer system. (True)*
45
A gigabyte (GB) is used to express which of the following approximate measures?
1. 1,000 byes of storage
2. 1,000,000 bytes of storage
3. 1,000,000,000 bytes of storage
4. 1,000,000,000,000 bytes of storage
**3. 1,000,000,000 bytes of storage**
46
A _______________ server is a powerful microcomputer that is used to coordinate telecommunications and resource sharing in small local area networks (LANs) and Internet and intranet web sites.
**network**
47
An intelligent terminal that can perform data entry and some information processing tasks independently is called a _______________ terminal.
1. transaction
2. dumb
3. Windows
4. remote
**1. transaction**
48
The output devices of a computer system can include video display units, scanners, and printers.
True | False
**False**
*A scanner is an input device. (True)*
49
The central processing unit (CPU) consists of:
1. the Control unit and the RAID unit
2. Arithmetic-logic unit and the RAID unit
3. the RAID unit and the Fuzzy Logic unit
4. the Control unit and the Arithmetic-logic unit
**4. the Control unit and the Arithmetic-logic unit**
50
The function of an input device is:
1. to interpret computer program instructions
2. to transmit directions to other components of the computer system
3. to convert data into electronic form for entry into a computer system
4. none of the above
**3. to convert data into electronic form for entry into a computer system**
51
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
**True**
52
Computer systems rely on which of the following components?
1. Input, processing, output, storage, and control
2. Input, processing, output, storage, and the Internet
3. The Internet, processing, output, storage, and control
4. Input, processing, output, the Internet, and control
**1. Input, processing, output, storage, and control**
53
The most popular pointing device used today is the \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
1. pointing stick
2. light pen
3. trackball
4. electronic mouse
**2. light pen**
54
According to the text, what are the current types of RFID chips?
1. Electrical and magnetic
2. Positive and negative
3. Active and passive
4. Red and Green
**3. Active and passive**
55
The third generation of computers relied on \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
1. solid state technology and integrated circuits
2. transistors
3. vacuum tubes
4. punch cards
**1. solid state technology and integrated circuits**
56
Offline devices are separate from, but can be electronically connected to and controlled by, a CPU.
True | False
**False**
*Offline devices are not under the control of the CPU. (True)*
57
RFID chips may be attached to objects, but cannot be injected into them because it interferes with radio signal transmission.
True | False
**False**
*RFID chips can be attached to objects, but they can also be injected into them. A recent use for RFID chips is the identification of pets, who have a chip imbedded under their skin. (True)*
58
The computing power of microcomputers currently exceeds that of the mainframe computer of previous generations, at a fraction of the cost.
True | False
**True**
59
Active RFID chips are self-powered and must be close to the reader to transmit their signal.
True | False
**False**
*Active RFID chips do not need to be close to the reader to transmit their signal. (True)*
60
The capacity of memory chips is usually expressed in terms of bytes. A _______________ is a basic grouping of bits that the computer operates as a single unit.
**byte**
61
A _______________ is an extremely powerful mainframe computer system, which is specifically designed for high-speed numeric computations and is used by governmentresearch agencies and national weather forecasting agencies.
**supercomputer**
62
A _______________ is a stationary pointing device. You turn a roller with only its top exposed outside its case to move the cursor on the screen.
**trackball**
63
When using _______________ speech recognition, software recognizes continuous, conversationally paced speech.
**continuous**
64
The use of RFID technology poses concerns for privacy issues.
True | False
**True**
65
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
**True**
66
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.
1. Ternary
2. Trinary
3. Binary
4. Bipolar
**3. Binary**
67
Microcomputers can act as powerful workstations for computer-aided design and other computation and graphics-intensive applications.
True | False
**True**
68
The word calculate is derived from calculus, the Latin word for \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**small stone**
69
OCR technology is used to read codes on merchandise tags, product labels, credit card receipts, and other documents.
True | False
**True**
70
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.
1. two
2. three
3. five
4. ten
**1. two**
71
Computing technology that can be used to draw or write on a pressure-sensitive graphics table is called \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_-based technology.
**pen**
72
A computer is a \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_, an interrelated combination of components that performs the basic system functions of input, processing, output, storage, and control.
**system**
73
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
**True**
74
Network servers are the most important category of computer systems for both businesspeople and individual consumers.
True | False
**False**
***Microcomputers** are the most important category of computer systems for both businesspeople and individual consumers. (True)*
75
Which of the following is a secondary storage device?
1. Primary memory
2. Random access memory
3. Magnetic disk
4. The CPU
**3. Magnetic disk**
76
The storage capacities in computer systems are frequently measured in kilobytes (KB), megabytes (MB), _______________ (GB), or terabytes (TB).
**gigabytes**
77
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
**True**
78
RFID stands for \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**radio frequency identification**
79
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ bytes of storage are needed to represent the name "Sarah."
1. Two
2. Three
3. Five
4. Ten
**3. Five**
80
According to the text, which of the following is considered by millions of computer users to be the primary function of the desktop PC?
1. Allows access to the Internet
2. Increases productivity through the use of software applications
3. Facilitates creation of local area networks
4. All of the choices are correct
**1. Allows access to the Internet**
81
The main advantage of CD-R (compact disk-recordable) disks is that they enable recorded data to be erased many times.
True | False
**False**
*The major limitation of CD-R disks is that recorded data cannot be erased. (True)*
82
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
**True**
83
Which of the following would not be considered a characteristic of supercomputer systems?
1. Costs between $5 million and $50 million.
2. Used for global weather reports and military defense.
3. Runs the same software found on most home computers, but at faster speeds
4. Designed specifically for high-speed numeric computation
**3. Runs the same software found on most home computers, but at faster speeds**
84
Some touch screens emit a grid of infrared beams or sound waves that is broken when the screen is touched.
True | False
**True**
85
\_\_\_\_\_\_\_\_\_\_ 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.
1. Mainframes
2. Supercomputers
3. Network Servers
4. None of the choices are correct.
**3. Network Servers**
86
Industry experts predict that the emergence of network computers and _______________ appliances for applications on the Internet and corporate intranets will replace many personal computers.
**information**
87
Smart card technology:
1. 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
2. Is not yet available in the United States
3. Is commonly used by banks to read and process checks
4. All of the choices are correct.
**1. 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**
88
Magnetic tape devices are frequently called direct access storage devices (DASDs), while magnetic disks are known as sequential access devices.
True | False
False
*Magnetic tape devices are sequential access devices; magnetic disks are DASDs. (True)*
89
Continuous speech recognition systems:
1. Compare speech patterns to a dictionary
2. Allow a computer to understand a few words from a voice it has never heard before
3. Require users to pause between each spoken word
4. Recognize conversationally paced speech
**4. Recognize conversationally paced speech**
90
Video displays and printed documents have been, and still are, the most common forms of output from computer systems.
True | False
**True**
91
The _______________ devices of a computer system include video display units, printers, audio response units, and so on.
**output**
92
The _______________ generation of computers was characterized by further miniaturization of circuits, increased multiprogramming, and virtual storage memory.
1. second
2. third
3. fourth
4. fifth
**3. fourth**
93
Offline devices:
1. are directly attached to the CPU
2. are not controlled by the CPU
3. are controlled by the CPU
4. can replace the CPU
**2. are not controlled by the CPU**
94
Today's corporate buyers seek networked PCs equipped with reliable wireless capabilities.
True | False
**True**
95
The central processing unit (CPU) of a computer system is divided into two major subunits: the arithmetic-logic unit and the _______________ unit.
**control**
96
Which of the following does not apply to a personal digital assistant (PDA)?
1. Supports applications with heavy mathematical computing
2. Touchscreens
3. Pen-based handwriting recognition
4. Web access
**1. Supports applications with heavy mathematical computing**
97
The dark, magnetic stripe on the back of credit cards can hold about 200 gigabytes of information.
True | False
**False**
*The dark, magnetic stripe on the back of credit cards can hold about 200 bytes of information. (True)*
98
Random Access Memory (RAM) is non-volatile memory.
True | False
**False**
*RAM is volatile. (True)*
99
ROM chips are widely used as a primary storage medium because they can be erased and overwritten.
True | False
**False**
*ROM chips can be read, but not erased or overwritten. (True)*
100
Computers today operate in the nanosecond range, which is one _______________ of a second.
**billionth**
101
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ systems include high-end network servers that handle large-scale processing of many business applications.
**Midrange**
102
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ are the most important category of computer systems for both businesspeople and individual consumers.
1. Microcomputers
2. Supercomputers
3. Network Servers
4. Mainframes
**1. Microcomputers**
103
The first generation of computers relied on \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
1. miniaturized circuits
2. transistors
3. vacuum tubes
4. punch cards
**3. vacuum tubes**
104
Which of the following storage types is volatile?
1. RAM
2. ROM
3. PROM
4. All the choices are volatile.
**1. RAM**
105
Which of the following is not a valid storage medium?
1. Paper documents
2. Optical disks
3. Magnetic tape
4. All of the choices are valid storage media.
**4. All of the choices are valid storage media.**
106
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
**True**
107
Which of the following best describes optical scanning devices?
1. Hand-held wands used to read data on merchandise tags
2. Photoelectric devices that scan data
3. Converts reflected light patterns into electronic impulses, which are accepted as input into the computer system
4. All of the choices are correct.
**4. All of the choices are correct.**
108
A pointing stick is the most popular pointing device used today.
True | False
**False**
*An **electronic mouse** is the most popular pointing device used today. (True)*
109
According to Moore's Law, _______________ doubles every 18 to 24 months.
1. computing power
2. computer prices
3. computer storage capacity
4. the number of functioning computers
**1. computing power**
110
A _______________ drive is a new, innovative form of storage that uses semiconductor memory and transistors that can be programmed to store data for virtually unlimited periods without power.
**flash or jump**
111
One device used as an input device in a computer system is a pointing stick, which is best described as:
1. A small gearshift lever set in a box
2. A stationary device containing a roller ball whose top is exposed outside its case
3. A pen-shaped device with a ballpoint at the end
4. A small, button-like device, sometimes likened to the eraser head of a pencil
**4. A small, button-like device, sometimes likened to the eraser head of a pencil**
112
The _______________ is a recent entrant into PDA technology that enables the user to manage information,such as appointments, to-do lists, and sales contracts. It also allows them to receive E-mail, access the Web, and exchange such information with a desktop PC or network server.
**BlackBerry**
113
There are two basic types of semiconductor memory: Read Only Memory (ROM) and \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**Random Access Memory (RAM)**
114
The _______________ is the main processing component of a computer system.
**central processing unit (CPU)**
115
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ are high-end network servers that handle large-scale processing of business applications.
1. Midrange computers
2. Mainframes
3. Supercomputers
4. All of the choices are correct.
**1. Midrange computers**
116
Which of the following would not fit the typical classification of a computer peripheral?
1. Monitors and printers
2. Scanners and hard disk drives
3. CD-ROM drives and backup systems
4. Central processing unit
**4. Central processing unit**
117
One of the major trends in secondary storage has been toward massive capacities using magnetic and optical media.
True | False
**True**
118
In the 1950s, _______________ were invented and quickly replaced the thousands of vacuum tubes used in electronic computers.
1. microchips
2. resistors
3. transistors
4. miniaturized circuits
**3. transistors**
119
Which of the following statements about optical disks is true?
1. They can be read only, recordable, or rewritable
2. They can hold approximately 50 megabytes on a single disk
3. They have totally replaced "3.5" diskettes
4. They have totally replaced magnetic tape as secondary storage
**1. They can be read only, recordable, or rewritable**
120
Speech recognition devices in work situations allow operators to perform all the following except:
1. Enter data without using their hands.
2. Input data faster.
3. input data more accurately.
4. Input data without using a computer.
**4. Input data without using a computer.**
121
Magnetic disks are common forms of secondary storage because they provide fast access and high storage capacity at a reasonable cost.
True | False
**True**
122
A _______________ user interface presents a user with icons, bars, buttons, boxes, and other images to initiate computer-based tasks.
**graphical**
123
All computers are systems of input, processing, output, storage, and distribution components.
True | False
**False**
*All computers are systems of input, processing, output, storage, and control components. (True)*
124
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ are the most important category of computer systems for both business people and individual consumers.
**Microcomputers**
125
OCR stands for \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**optical character recognition**
126
What sets the RIM BlackBerry apart from other wireless PDA solutions?
1. Lower price
2. It is always on and connected
3. Smaller size and weight
4. Longer battery life
**2. It is always on and connected**
127
High speed storage media cost less per byte and provide higher capacities than lower-speed storage media.
True | False
**False**
*High-speed storage media cost more per byte and provide lower capacities. (True)*
128
Speaker independent voice recognition systems allow a computer to understand a few words from a voice it has never heard before.
True | False
**True**
129
A _______________ allows users to use a computer by touching the surface of its video display screen.
**touch screen**
130
A special type of parallel computing that relies on complete computers connected to a network by a conventional network interface is called \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**Distributed or Grid Computing**
131
Printing information on paper is the most common form of information output.
True | False
**False**
*Printing information on a **video display** is the most common form of output. (True)*
132
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ computers continue to handle the information processing needs of major corporations and governmental agencies with high transaction processing volumes or complex computational problems.
**Mainframe**
133
Moore's Law states that the number of transistors on an integrated circuit will\_\_\_\_\_\_\_\_\_\_ every \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
**double; 18-24 months**
134
Personal computers, network servers, and technical workstations are terms used to highlight major uses of particular types of computers.
True | False
**True**
135
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ technology is a form of input technology commonly used by banks on their ATM cards.
**Magnetic stripe**
136
A BlackBerry \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
1. performs common PDA functions
2. doesn't have a visible antenna
3. uses the same network as most mobile phones
4. All of the choices are correct.
**4. All of the choices are correct.**
137
It is predicted that in the future we will be able to back up our biological memories.
True | False
**True**
138
Personal digital assistants most commonly use which of these technologies?
1. Pen-based computing
2. Optical scanning
3. Jump drives
4. Back-lit keyboards
**1. Pen-based computing**
139
Which of the following is an advantage of RAID?
1. It provides virtually unlimited online storage
2. It provides high access speeds
3. It provides fault-tolerant storage capacity
4. All of the choices are advantages.
**4. All of the choices are advantages.**
140
The primary advantage of CD-RW disks over CD-ROM and CD-R disks is that they can be recorded and _______________ many times.
**erased**
141
A computer that uses vacuum tube technology is called a \_\_\_\_\_\_\_\_\_\_-generation computer.
**first**
142
Banks use _______________ technologies for check processing.
1. voice response
2. magnetic ink character recognition
3. laser printer
4. optical scanner
**2. magnetic ink character recognition**
143
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
**False**
*Network servers are usually the more powerful microcomputers. (True)*
144
Peripherals depend on direct connections or telecommunications links to the central processing unit of a computer system.
True | False
**True**
145
A byte typically consists of ten bits and represents one character of data in most computer coding schemes.
True | False
**False**
*A byte consists of eight bits. (True)*
146
Speaker independent voice recognition systems:
1. Compare speech patterns to a dictionary
2. Allow a computer to understand a few words from a voice it has never heard before
3. Require users to pause between each spoken word
4. All of the choices are correct.
**2. Allow a computer to understand a few words from a voice it has never heard before**
147
Which of the following would perform the required mathematical and logic operations of a central processing unit (CPU)?
1. Control unit
2. Arithmetic-logic unit
3. RAID unit
4. Fuzzy logic unit
**2. Arithmetic-logic unit**
148
Optical _______________ devices read text or graphics and then convert them into digital input for your computer.
**scanning**
149
The primary storage (main memory) of a computer consists of microelectronic semiconductor memory chips.
True | False
**True**
150
The clock speed of a microprocessor today is commonly expressed in teraflops; earlier microcomputer speeds were reported in gigahertz.
True | False
**False**
*The clock speed of a microprocessor today is commonly expressed in gigahertz; earlier microcomputer speeds were reported in **megahertz**. (True)*
151
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ cards are a form of input technology. These cards have an embedded microprocessor chip and several kilobytes of memory.
**Smart**
152
Which of the following is a common application for a midrange computer?
1. Internet functions.
2. Integrated enterprise-wide manufacturing and distribution.
3. Financial applications.
4. All of the choices are correct.
**4. All of the choices are correct.**
153
High speed storage media _______________ than lower-speed storage media.
1. cost less per byte and provide higher capacities
2. cost less per byte and provide lower capacities
3. cost more per byte and provide higher capacities
4. cost more per byte and provide lower capacities
**4. cost more per byte and provide lower capacities**
154
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
**False**
*Moore's Law refers to the exponential growth in the number of transistors per integrated circuit, which quadruples computer power every **18 to 24 months**. (True)*
155
The most common output trend is \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
1. printed reports and documents
2. audio responses
3. voice responses
4. video displays
**4. video displays**
156
Most CD-ROM disks can hold more than 600 megabytes of information.
True | False
**True**
157
The central processing unit (CPU) is the main processing component of a computer system.
True | False
**True**
