Lecture 2 Flashcards

1
Q

collection of raw facts, numbers, letters, symbols, or any combination of these that, when arranged, provide a result

A

data

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2
Q

data that is made meaningful based on the needs of the user through manipulation

A

information

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3
Q

information in computer terms

A

processed data

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4
Q

describable qualities of information

A
  • relevant
  • complete
  • timely
  • accurate
  • presentable
  • cost-effective
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5
Q

must be important to the person receiving or using it

A

relevant

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6
Q

no vital information should be omitted

A

complete

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7
Q

information must be available when needed

A

timely

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8
Q

validity or information is necessary for sound-decision making

A

accurate

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9
Q

good presentation makes information more understandable

A

presentable

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10
Q

only essential data processing should be carried out

A

cost effective

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11
Q

conceptual framework where input data is processed resulting in an output in the form of information

A

input-process-output model (IPO)

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12
Q

series of activities that transforms data into information in some way since men have been able to communciate

A

data processing

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13
Q

data processing methods

A
  • manual data processing
  • mechanical data processing
  • electromechanical data processing
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14
Q

objectives of data processing

A

data processing model

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15
Q

implies the extended use of human labor in the processing of data

A

manual data processing

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16
Q

involves the use of machines or devices that alter transmit and direct applied forces

A

mechanical data processing

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17
Q

has proven superior capacity to perform computations and other functions at incredible speeds

A

electromechanical data processing

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18
Q

four basic functions

A
  • input preparation
  • processing
  • output preparation
  • storage and feedback
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19
Q

source documents are collected into a form acceptable for digital processing

A

input preparation

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20
Q

actual operations are performed on data to convert it into information

A

processing

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21
Q

processed information is prepared in a format acceptable to the user for analysis or as an input for a second cycle

A

output preparation

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22
Q

result of the processed data is stored for future use or retrieval

A

storage and feedback

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23
Q

digital electronic device that processes data through a series of commands into information for reproduction and storage

A

computer

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24
Q

machine or electronic circuit designed to work on numerical data represented by some physical quantity

A

analog computers

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25
Q

processes information in digital form

A

digital computer

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26
Q

aka nanotech; manipulation of matter on an atomic and molecular scale

A

nanotechnology

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27
Q

capabilities of computers

A
  • perform arithmetic and logical operations
  • store or remember a great amount and variety of information and retrieve or recall the information needed almost instantly
  • handle large volumes of repetitive tasks accurately over long periods of time
  • communicate with its operators and other machines
  • remote processing
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28
Q

limitations of computers

A
  • still subject to human direction and control
  • can detect but generally cannot correct an inaccurate entry on their own
  • subject to occasional breakdown or computer malfunctions
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29
Q

computer system components

A
  • dataware
  • hardware
  • software
  • peopleware
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30
Q

systematically and organized collection of data and procedures relevant to the organization

A

dataware

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31
Q

includes the physical components of a computer

A

hardware

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32
Q

where the network of computers is connected to

A

topology

33
Q

basic parts of a computer

A
  • computer case
  • monitor
  • keyboard
  • mouse
  • cpu
  • motherboard
  • power supply unit
  • random access memory (RAM)
  • hard drive
  • usb flash drive
  • expansion cards
  • video card
  • sound card
  • network card
34
Q

collection of computer programs and procedures that make the hardware components perform their functions

A

software

35
Q

collection of programs that sets the platform or environment to allow a computer system to function and manage its own operations

A

operating system (OS)

36
Q

OS designed specifically for mobile devices

A
  • apple ios
  • windows phone
  • google android
37
Q

3 most common OS for personal computers

A
  • microsoft windows
  • apple mac OS X
  • linux
38
Q

introduced an operating environment named Windows as an add-on to MS-DOS

A

microsoft windows

39
Q

series of Unix-based graphical interface operating systems developed and marketed by Apple Inc

A

apple mac OS X

40
Q

family of open source operating systems that can be modified and distributed by anyone around the world

A

linux

41
Q

visual way of interacting with a computer using items such as windows, icons, and menus, and everything is clearly displayed on the screen using a combination of graphics and text

A

graphical user interface

42
Q

type of software that allows performing specific tasks

A

application or apps

43
Q

personnel who manage and use the computer system, who design the applications and systems software, who write and encode the programs

A

peopleware

44
Q

types of peopleware

A
  • administrator
  • project manager
  • systems analyst / designer
  • network engineer
  • network administrator
  • database administrator
  • computer engineer
  • computer programmer
  • computer operator / user / data encoder
45
Q

global system of interconnected computer networks providing email and information

A

internet

46
Q

group of two or more computer systems linked together

A

network

47
Q

common types of network

A
  • local area network (LAN)
  • wide area network (WAN)
48
Q

from one station to another within the office, building, campus, or site

A

LAN

49
Q

from one locality to another within the country

A

WAN

50
Q

computer that “serves” many different computers in a network by running specialized software and storing information

A

server

51
Q

stored on servers

A

web pages

52
Q

software needed in order to find, retrieve, view, and send information over the internet

A

web browsers

53
Q

virtual network of web sites connected that let you link to many sites on the internet

A

world wide web

54
Q

a site (location) on the www

A

website

55
Q

have links that allow the user to quickly move from one document to another even when the documents are stored in different computers

A

html

56
Q

html =

A

hypertext markup language

57
Q

typing this in a browser enables one to get to a webpage

A

url

58
Q

url =

A

uniform resource locator

59
Q

parts of the url

A
  • http://
  • www
  • .cnn.com
60
Q

usually offer different levels of speed based on your needs

A

internet service providers (ISP)

61
Q

electronic device that connects computers via a telephone line

A

modem

62
Q

hardware device that allow to connect several computers and other devices to a single internet connection

A

router

63
Q

types of internet connection

A
  • dial-up
  • DSL (digital subscriber line)
  • cable
  • satellite
  • 3G & 4G
64
Q
  • Slower than internet connection types
  • Cannot use internet & phone at the same time
A

dial-up

65
Q
  • much faster than dial-up
  • Internet & phone can be used at the same time
A

DSL

66
Q
  • much faster than dial-up & can be faster than DSL
  • Uses cable connection
  • Only available when cable is available
A

cable

67
Q
  • faster than dial-up but data is delayed; not good for real-time applications like gaming &
    video conference
  • Connect via satellites
A

satellite

68
Q

Available for mobile phones, computer & tablet computers

A

3G & 4G

69
Q

site can be used for business networking

A

LinkedIn

70
Q
  • internet telephone
  • allows a user to have telephone service through an internet connection
A

voice over internet protocol (VoIP)

71
Q
  • short for web log
  • journal (online diary)
A

blog

72
Q
  • short for electronic mail
  • system for sending and receiving messages online
A

email

73
Q

plays while downloading so you don’t have to wait for it to download first

A

streaming

74
Q

type of website that allows content to be edited

A

wiki

75
Q

system that allows users to communicate in real time

A

online chat

76
Q

refers to online services that allow people to interact with each other and stay connected with friends, family, and people around the world

A

social networking

77
Q

allows users all over the internet to save and share interesting sites

A

social bookmarking

78
Q

can subscribe to a series of audio or video files that will automatically be downloaded to a computer

A

podcast