Key Terms
Key Term Definition
application software (9)End user software
basic application (9)Application software that is used in nearly all careers
(See also general-purpose application) communication device (13)Computer equipment that allows a computer to
connect to other computer systems to share data and
information.
compact disc (CD) (13)  A type of optical disc that has the least storage
capacity.
computer competency (3)Having computer related skills
connectivity (15)Allows computers to connect and share information
data (4)Unprocessed facts
database file (14)typically created by database management programs
to contain highly structured and organized data.
desktop computer (11)  A type of microcomputer that is small enough to fit
on top of or alongside a desk yet are too big to carry
around.
device driver (8)specialized programs designed to allow particular
input or output devices to communicate with the rest
of the computer system.
digital versatile disc (DVD) (13)  A type of optical device that gives great capacity and
can be used store many different types of data.  (See
also digital video disc)
digital video disc (DVD) (13)  A type of optical device that gives great capacity and
can be used store many different types of data.  (See
also digital versatile disc)
document file (14)Data files created by word processors to save
documents such as memos, term papers, and letters.
end user (4)The most important part of an information system.
(See also people)
floppy disk (13)  A magnetized secondary storage device that is small
and can easily transport data from one computer to
another.
handheld computer (11)The smallest microcomputer that is designed to fit
into the palm of one hand. (See also palm computer) hard disk (13)  A secondary storage device that uses magnetized dust
to store the information.
hardware (5)The equipment that processes the data to create
information
high definition (hi def) (13)  A type of optical disk that has great capacity.
information (4)Processed facts
information system (4)Composed of five parts: people, procedures, software,
hardware, and data.
information technology (IT) (5)Relating to computer software and hardware, and data input device (11)Translate data and programs that humans can
understand into a form that the computer can process.
Internet (16)The largest computer network in the world
keyboard (11)  A type of input device that allows the user to input
character data into the computer.
mainframe computer (10)  A type of computer that is capable of great processing
speeds and data storage.
memory (11)Holds data and program instructions for processing
the data. (See also primary storage, random access
memory)
microcomputer (10)The least powerful type of computer, yet the most
widely used and fastest-growing, type of computer.
microprocessor (11)controls and manipulates data to produce information.
midrange computer (10)Refrigerator-sized machines that medium-sized
companies or departments of large companies
typically use them for specific purposes. (See also
Minicomputer)
minicomputer (10)Refrigerator-sized machines that medium-sized
companies or departments of large companies
typically use them for specific purposes. (See also
midrange computer)
modem (13)Modifies telephone communications into a form that
can be processed by a computer.
monitor (13)  A common output device that allows the use to see
what the computer is doing. (See also video display
screens)
mouse (11)  A type of input device that allows the user to point
and click on items for easier operation.
network (16)  A communications system connecting two or more
computers.  (See also computer network) notebook computer (11)  A type of microcomputer that is portable, lightweight,
and fit into most briefcases. (See also laptop
computer)
operating system (8)Program that coordinates computer resources,
provides an interface between users and the
computer, and runs applications.
optical disk (13)  A secondary storage device that uses laser technology
and has the greatest capacity.
output device (11)translate the processed information from the
computer into a form that humans can understand.
palm computer (11)The smallest microcomputer that is designed to fit
into the palm of one hand. (See also handheld
computer)
people (4)The most important part of an information system.
(See also end users)
personal digital assistant (PDA)
The most widely used handheld computer
(11)
presentation file (15)created by presentation graphics programs to save
presentation materials.
primary storage (11)Holds data and program instructions for processing
the data. (See also random access memory, memory) printer (13)  A computer output device that produces a hard copy
of data.
procedures (4)The rules or guidelines for people to follow when
using software, hardware, and data
program (4)Consist of the step-by-step instructions that tell the
computer how to do its work. (See also software)
random access memory (RAM)
(11)Holds data and program instructions for processing the data. (See also primary storage, memory)
secondary storage device (13)holds data and programs even after electrical power
to the computer system has been turned off.
service program (9)  A part of the system software that perform specific
tasks related to managing computer resources.  (See
also Utility)
software (4)Consist of the step-by-step instructions that tell the
computer how to do its work. (See also program) specialized application (10)Computer programs that are narrowly focused on
specific disciplines and occupations. (See also
special-purpose application)
supercomputer (10)The most powerful type of computer that is a special
high-capacity computer used by very large
organizations.
system software (8)enables the application software to interact with the
computer hardware and helps the computer manage
its own internal resources.
system unit (11)  A container that houses most of the electronic
components that make up a computer system. (See
also chassis, system cabinet)
tablet PC (11)  a type of notebook computer that accepts your
handwriting and converts it to standard text that can
be further processed by .
utility (8)  A part of the system software that perform specific
tasks related to managing computer resources.  (See
also Service Program)
Web (16)provides a multimedia interface to the numerous
resources available on the Internet. (See also World
Wide Web)
wireless revolution (15)  a revolution that is expected to dramatically affect the
way we communicate and use computer technology.
worksheet file (14)created by electronic spreadsheets to analyze things
like budgets and to predict sales.
Crossword Puzzle Answers:
Across
Num.Clue Answer 1The most essential part of an information system.People
7Coordinates computer resources.Operating System 10Modifies signals for processing.Modem
12Data that has been processed by the computer.Information
13Unprocessed facts.Data
14Notebook computer that accepts handwritten input..Tablet PC
Down
Num.Clue Answer 2Uses computers to become more productive.End User
3Rules or guidelines to follow when using software,
hardware, and data.
Procedures 4Created by word processors.Document Files
5Specialized programs that allow input and output
devices to communicate.
Device Drivers 6Created by database management programs.Database Files
8The physical equipment of a microcomputer.Hardware
9The world’s largest computer network.Internet
13Provides step-by-step instructions to the computer.Software
Num Multiple Choice
Answers Matching Answers
1  B    E
2  B F
3  A I
4  B H
5  D A
6  D C
7  A G
8  C B
9D D
10  D J
Open Ended Questions:
1.Explain the five parts of an information system. What part do people play in this system?
a.People: making people, or  end users more productive.
Procedures: The rules or guidelines for people to follow when using software,
hardware, and data are procedures.
Software: A program consists of the step-by-step instructions that tell the
computer how to do its work. The purpose of software is to convert data
(unprocessed facts)  into information (processed facts).
Hardware: The equipment that processes the data to create information is called
hardware.connect下载
Data: The raw, unprocessed facts, including text, numbers, images, and sounds,
are called data.
b.People are surely the most important part of any information system. Our lives
are touched every day by computers and information systems.
2.What is system software? What kinds of programs are included in system software?
a.System software enables the application software to interact with the computer
hardware. System software is “background” software that helps the computer
manage its own internal resources.
b.It consists of operating systems, utilities, and device drivers.
3.Define and compare basic and specialized application software. Describe some different
types of basic applications. Describe some types of specialized applications.
a.Basic applications, or general-purpose applications, are widely used in nearly all
career areas. They are the kinds of programs you have to know to be considered
computer competent. One of these basic applications is a browser to navigate,
explore, and find information on the Internet.
b.Specialized applications, also known as special-purpose applications, include
thousands of other programs that are more narrowly focused on specific
disciplines and occupations. Some of the best known are graphics, audio, video,
multimedia, Web authoring, and artificial intelligence programs.
4.Describe the different types of computers. What is the most common type? What are the
types of microcomputers?
a.There are four types of computers: supercomputers, mainframe, computers,
minicomputers, and microcomputers.
b.Microcomputers are the most widely used and fastest-growing, type of computer.
(10)
c.There are four types of microcomputers: desktop, notebook, tablet PC, and
handheld computers.
5.What is connectivity? How are the wireless revolution and connectivity related? What is
a computer network? What is the Internet? What is the Web?
a.Connectivity is the capability of your microcomputer to share information with
other computers.
b.The single most dramatic change in connectivity in the past five years has been
the widespread use of mobile or wireless communication devices.  These wireless
applications are just the beginning of the wireless revolution, a revolution that is
expected to dramatically affect the way we communicate and use computer
technology.
c.  A computer network is a communications system connecting two or more
computers.
d.The largest network in the world is the Internet. It is like a giant highway that
connects you to millions of other people and organizations located throughout the
world.
e.The Web, also known as the World Wide Web or WWW, provides a multimedia
interface to the numerous resources available on the Internet

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