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IT123 - Information Technology > LE1 > Flashcards

LE1 Flashcards

1
Q

An electronic device, operating
under the control of instructions stored in its own
memory

A

A computer

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2
Q

What is the Information Processing Cycle

A

Input > Process > Output

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3
Q

A computer contains many electric, electronic, and

mechanical components known as _________

A

Hardware

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4
Q

Give 5 hardware in a computer system.

A

Input Device, Output Device, System unit, Storage device, Communication device

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5
Q

This hardware allows you to enter data and instructions into a computer

A

Input device

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6
Q

Hardware component that conveys information to one or more people

A

Output device

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7
Q

Hardware component case that contains the electronic components of the computer that
are used to process data

A

System unit

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8
Q

Hardware component that records (writes) and/or retrieves (reads) items to and from storage
media

A

Storage device

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9
Q

Hardware component that enables a computer to send and receive data, instructions, and
information to and from one or more computers or mobile devices

A

Communication device

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10
Q

Give 5 advantages of using a computer

A 
Speed
Reliability
Consistency
Storage
Communications
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11
Q

Give 5 disadvantages of using a computer

A 
Health Risks
Violation of Privacy
Public Safety
Impact on Labor Force
Impact on Environment
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12
Q

It involves reducing the electricity
consumed and environmental waste generated when
using a computer

A

Green computing

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13
Q

Give 4 strategies of green computing

A

Recycling
Regulating manufacturing processes
Extending the life of computers
Immediately donating or properly disposing of replaced computers

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14
Q

It is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media

A

Network

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15
Q

it is a worldwide collection of networks that
connects millions of businesses, government agencies,
educational institutions, and individuals

A

Internet

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16
Q

____, also called a ____ tells the
computer what tasks to perform and how to
perform them

A

Software ; Program

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17
Q

What are the 2 types of software?

A

System software and application software

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18
Q

What are the 2 types of system software?

A

Operating system and utility program

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19
Q

It is the process of setting up software to
work with the computer, printer, and other
hardware

A

Installing

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20
Q 
develops
software or writes the
instructions that direct
the computer to
process data into
information
A

Programmer

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21
Q

What are the 7 categories of computers?

A

Personal computers, Mobile computers and mobile devices, Game consoles, Servers, Mainframes, Supercomputers, Embedded computers
(PaMGaSaMSE)

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22
Q

It is a personal computer you
can carry from place to
place

A

Mobile computers

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23
Q

It is a computing device small
enough to hold in your
hand

A

Mobile devices

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24
Q

It is a mobile computing device designed for single‐player or multiplayer video games

A

Game console

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25
Q

It is a controls access to the hardware, software, and other resources on a network.
Provides a centralized storage area for programs, data, and information.

A

Server

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26
Q

It is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously

A

Mainframe

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27
Q

It is the fastest, most powerful computer

A

Supercomputer

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28
Q

It is a special‐purpose computer that functions as a component in a larger product

A

Embedded computer

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29
Q

What are the 5 elements of an information system?

A

Hardware, Software, Data, People, Procedures

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30
Q

What are the 8 computer applications in the society?

A 
Education
Finance
Government
Health Care
Science
Publishing
Travel
Manufacturing
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31
Q

Give 5 examples of computer usage

A 
Home User
Small Office User
Mobile User
Power User
Enterprise User
32
Q

It describes a process in which two or more computers or devices transfer data, instructions, and information

A

Computer communication

33
Q

Give the process of computer communications?

A

Sending device - Communication channel - Receiving device

34
Q

Give 15 uses of computer communications

A 
Web
Web 2.0
Web folder
Internet
Wikis
Email
Fax
Blogs
Chat rooms
Instant messaging
Video conferencing
Newsgroups
VoIP
FTP
RSS
35
Q

It allows users to send and receive short text messages on a phone or other mobile device or computer

A

Text messaging (SMS)

36
Q

It allows users to send pictures and sound files

A

Picture Messaging

37
Q

It allows users to send short video clips

A

Video Messaging

38
Q

It allow people to connect wirelessly to the Internet from home, work, school, and in many public locations

A

Wireless Internet access points

39
Q

It is a coffeehouse, restaurant, or other location that provides personal computers with Internet access to its customers

A

Cybercafe

40
Q

It is a navigation system that consists of one or more earth-based receivers that accept and analyze signals sent by satellites in order to determine the GPS receiver’s geographic location

A

GPS

41
Q

It is a Web application that combines services from two or more sources

A

Mashup

42
Q

It is a collection of computers and devices connected together via communications devices and transmission media

A

Network

43
Q

What are the 5 advantages of a network?

A 
Facilitating communications
Sharing hardware
Sharing software
Sharing data and information
Transferring Funds
44
Q

It is a network that connects computers and devices in a limited geographical area

A

LAN

45
Q

It is a LAN that uses no physical wires

A

WLAN

46
Q

It connects LANs in a metropolitan area

A

Metropolitan area network (MAN)

47
Q

It is a network that covers a large geographical area

A

Wide area network (WAN)

48
Q

It describes an Internet network on which users access each other’s hard disks and exchange files directly over the Internet

A

P2P

49
Q

It refers to the layout of the computers and devices in a communications network

A

Network topology

50
Q

It is an internal network that uses Internet technologies

A

Intranet

51
Q

It allows customers or suppliers to access part of its intranet

A

Extranet

52
Q

Give 10 communication standards

A 
Ethernet
Token ring
TCP/IP
Wi-Fi
Bluetooth
UWB
IrDA
RFID
WiMAX
WAP
53
Q

It is a network standard that specifies no computer controls when data can be transmitted

A

Ethernet

54
Q

It standard specifies that computers and devices on the network share or pass a special signal

A

Token Ring

55
Q

It is a network standard that defines how messages are routed from one end of a network to another

A

TCP/IP

56
Q

It identifies any network based on the 802.11 standard that facilitates wireless communication

A

Wi-Fi

57
Q

It has a transfer rate of 1 or 2 Mbps

A

802.11

58
Q

It has a transfer rate of up to 54 Mbps

A

802.11a

59
Q

It has a transfer rate of up to 11 Mbps

A

802.11b

60
Q

It has a transfer rate of 54 Mbps and higher

A

802.11g

61
Q

It has a transfer rate of 108 Mbps and higher

A

802.11n

62
Q

It uses short-range radio waves to transmit data

A

Bluetooth

63
Q

It uses short-range radio waves to communicate at high speeds

A

UWB

64
Q

It transmits data wirelessly via infrared (IR) light waves

A

IrDA

65
Q

It uses radio signals to communicate with a tag placed in or attached to an object, animal, or person

A

RFID

66
Q

It is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device

A

Communication device

67
Q

It uses the cell phone network to connect to the Internet wirelessly from a notebook computer, a smart phone, or other mobile device

A

Wireless modem

68
Q

It enables a computer or device to access a network

A

Network card

69
Q

It is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to a wired network

A

Wireless access point

70
Q

It connects multiple computers or other routers together and transmits data to its correct destination on a network

A

Router

71
Q

It connects several devices in a network together

A

A hub or switch

72
Q

What are the 3 types of wired home networks?

A

Ethernet
Powerline cable
Phoneline

73
Q

The amount of data that can travel over a communications channel sometimes is called the ________

A

Bandwidth

74
Q

It is the time it takes a signal to travel from one location to another on a network

A

Latency

75
Q

It carries one or more signals

A

Transmission media

76
Q

It transmit multiple signals simultaneously

A

Broadband

IT123 - Information Technology (2 decks)

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