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IS201 > CH3 > Flashcards

CH3 Flashcards

1
Q

hardware components of a computer include devices that perform..

A

input, processing, data storage, output

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2
Q

part of the computer that sequences and executes instructions

A

Central processsing unit (CPU)

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3
Q

the central processing unit is composed of 3 parts…

A

arithmetic/logic unit, the control unit, the register areas

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4
Q

provides the processor with a working storage area to hold program instructions and data

A

memory

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5
Q

provide data and instructions to the computer and receives results from it

A

input/output devices

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6
Q

a series of electronic pulses produces at a predetermined rate that affects machine cycle time.

A

clock speed

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7
Q

clock speed is often measured in _______

A

gigahertz (GHz)

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8
Q

gigahertz (GHz): billions of ______ per _______

A

cycles per second

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9
Q

T/F: Many of today’s computers operate in the 1 to 6 GHz range.

A

F, 1 to 4

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10
Q

invovles the simultaneous execution of two or more instructions at the same time

A

multiprocessing

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11
Q

the simultaneous execution of the same task on multiple processors

A

parallel computing

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12
Q

systems with thousands of processors that work on the same task, linking hundreds or even thousands of processors to operate at the same time

A

massively parallel processing systems

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13
Q

the use of a collection of computers that work in a coordinated manner to solve a common problem

A

grid computing

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14
Q

provides the CPU with a working storage area for programs and data

A

main memory

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15
Q

rapidly provides data and instructions to the CPU

A

main memory

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16
Q

the storage capacity for computer storage units in expressed in….

A

Bytes

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17
Q

How much is in a Byte (B)?

A

eight bits that together represent a single character of data

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18
Q

What are the two types of memory?

A

RAM and ROM

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19
Q

RAM stands for

A

random access memory

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20
Q

ROM stands for

A

Read only memory

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21
Q

(RAM/ROM) is nonvolatile.

A

ROM

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22
Q

(RAM/ROM) is temporary and volatile.

A

RAM

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23
Q

a type of high-speed memory that a processor can access more rapidly than main memory.

A

cache memory

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24
Q

T/F: ROM provides permenant storage for data and instructions that do change.

A

F, that do NOT change.

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25
Q

devices that store large amounts of data, instructions, and information more permenantly than allowed with memory.

A

secondary storage

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26
Q

T/F: the advantages of the memory over the seconday storage is nonvolatility, greater capacity, greater economy.

A

F, the advantages of the secondary storage

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27
Q

T/F: the secondary storage is directly accessible by the CPU.

A

F, NOT directly accessible

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28
Q

Name the 3 most common forms of secondary storage

A

magnetic, optical, solid state

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29
Q

examples of magnetic secondary storage

A

Hard disk drive (HDD)

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30
Q

examples of optical secondary storage

A

CD, DVD, Blu ray

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31
Q

examples of solid state secondary storage

A

flash Drive (USB)

32
Q

An enterprise storage is a

A

large secondary storage

33
Q

Forms of enterprise storage:

A

Attached storage, Network-attached storage (NAS), Storage area networks (SANs), Cloud computing storage.

34
Q

which form of enterprise storage includes devices that are connected directly to a single computer?

A

attached storage

35
Q

which form of enterprise storage includes a hard disk drive that is set up with its own network address and provides file-based storage services to other devices on the network?

A

network-attached storage

36
Q

which form of enterprise storage includes a data storage model where a data storage device service provider rents space to indiviuals and organizations and rented data storage is accessed via the internet?

A

cloud computing storage

37
Q

examples of cloud computing storage

A

apple’s icloud, dropbox. google drive, mozy, microsoft SkyDrive. and Amazon’s Elastic Compute Cloud

38
Q

which form of enterprise storage includes a high speed special purpose network that integrates different types of data storage devices into a single storage system and connects that to computing resources across an entire organization?

A

Storage area networks (SANs)

39
Q

T/F: input/output devices are part of a computer’s user interface.

A

t

40
Q

T/F: organizations should keep their buisness goals in mind when selecting input and output devices.

A

t

41
Q

what are the desired characteristics of input devices?

A

allow accurate and rapid entry

42
Q

what are the desired characteristics of output devices?

A

produce timely results

43
Q

Two-stage process of getting data into the computer system:

A

1- data entry
2- data input

44
Q

what happpens in the data-entry stage?

A

converting human-readable data to a machine-readable form

45
Q

what happens in the data-input stage?

A

transferring the machine-readable data into the system.

46
Q

T/F: many companies are using online data entry and input.

A

true

47
Q

T/F: A salesperson entering a sales order into the computer at the time and place the order was taken is an example of source data automation.

A

true

48
Q

T/F: source data automation ensures accuracy and timeliness.

A

true

49
Q

common personal computer input devices

A

keyboard and mouse

50
Q

speech-recognition technology, motion-sensing input devices, scanning devices, optical data readers, and Magnetic ink character recognition devices (MICR) are examples of

A

input devices

51
Q

Magnetic stripe cards, chip cards, smart cards, contactless payment cards, point-of-sale (POS) devices, ATM devices, Bar-Code devices, Radio Frequency Identificaiton (RFID) devices, pen input devices, touch screens are all examples of:

A

Input devices

52
Q

what are the two main types of printers?

A

laser and inkjet

53
Q

T/F: printers are used for general design work (blueprints, schematics, and drawings of buildings)

A

F, plotters

54
Q

a popular format for compressing a sound sequence into a very small file while preserving the original level of sound quality.

A

MP3

55
Q

What is the general classification of computer system types?

A

special-purpose, and general-purpose computers

56
Q

what are the two major groups of general-purpose computers?

A

single-user computers, and multiple-user computers

57
Q

an electronic device capable of storing and processing data is incorporated into a person’s clothing or personal accessories.

A

wearable computers

58
Q

health tracking wrist bands and smart watches are examples of

A

wearable computers

59
Q

T/F: laptops are designed for use by mobile users.

A

true

60
Q

a computer employed by many users to perform a specific task, such as running network or internet applications.

A

server

61
Q

T/F: servers usually have special features that make it more suitable for operating in a multi-user enviorment.

A

true

62
Q

the ability to increase the processing capability

A

scalability

63
Q

a large powerful computer shared by hundreds of concurrent users connected to the machine over a network.

A

mainframe computer

64
Q

one the most powerful computer systems with the fastest processing speed.

A

supercomputers

65
Q

T/F: Scalability enable the system to handle more users, more data, more transactions.

A

true

66
Q

a room used to house a large number of servers.

A

server farm

67
Q

a method of logically dividing the resources of a single physical server to create multiple logical servers

A

virtual server

68
Q

T/F: each logical server acts as its own dedicated machine

A

true

69
Q

a server that houses many indiviual computer motherboards.

A

blade server

70
Q

T/F: a blade server shares a common power supply and air-cooling source within a single chassis

A

true

71
Q

a climate and access controlled building or a set of buildings that houses the computer hardware that delivers an organization’s data and information services.

A

data center

72
Q

factors driving growth in data centers:

A
  • demand for additional computing capacity
  • need for additional storage capacity
73
Q

T/F: the construction considerations of a data center include the ability to absorb the impact of a disaster and quickly restore services.

A

true

74
Q

a program concerned with the efficient and enviormentally responsible design, manufacture, operation, and disposal of IS-related products.

A

green computing

75
Q

what are the goals of green computing?

A
  • reduce the use of hazardous material
  • allow companies to lower their power-related costs
  • enable safe disposal or recycling equipment
76
Q

a system that enables purchasers to evaluate, compare, and select electronic products based on a total of 51 enviormental criteria.

A

electronic product enviormental assessment tool (EPEAT)

IS201 (17 decks)

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