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7/25/2019 Ch01 Information Systems in Business
1/23
2001 Business & Information Systems2/e 1
Chapter 1
Information Systems in
Business
7/25/2019 Ch01 Information Systems in Business
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2001 Business & Information Systems2/e 2
Our Agenda Basic Information Systems
ConceptsTypes of Information Systems Information Systems sers Connecting sers to Information
Techno!ogy Bene"ts of Information Systems An Approach to the Study of
Information Systems
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$earning O%ecti'es ()p!ain *hat an information
system is and descri%e the
functions of an information system+ Identify the components of an
information system+ ()p!ain the di,erence %et*een
data and information+
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$earning O%ecti'es
.contd+ $ist se'era! types of information
systems and gi'e an e)amp!e of
each type+ ()p!ain *ho information systems
users are and descri%e ho* users
use information systems+
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$earning O%ecti'es
.contd+ ()p!ain *hat ethics are and *hy it
is important to use information
systems ethica!!y+ escri%e ho* users are connected
to information techno!ogy !oca!!y3
nationa!!y3 and internationa!!y+ escri%e se'era! %ene"ts ofinformation systems+
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Basic Information SystemConcepts
5hat is an Information System6 An Information Systemis a co!!ection of
components that *or7 together to
pro'ide information to he!p in theoperations and management of anorgani8ation+
Information Techno!ogyis the
integration of computers3communications e9uipment3 and othertechno!ogy used in information systems+
7/25/2019 Ch01 Information Systems in Business
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Components of an
Information System6 Components
;ard*are ersonne!< >eop!e *ho operate the
system >roceduresfor the peop!e to fo!!o*
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()amp!es of Information
Systems An in'entory contro! system An order entry system A production schedu!ing system
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Information Systems
=unctions Input =unctionaccepts the input data
from outside the system+
Storage =unctionretains input dataand retrie'es stored data+ >rocessing =unctionca!cu!ates and in
other *ays manipu!ates the input and
stored data+ Output =unctionproduces resu!ts of
processing for use outside thesystem+
.=i!! in the %!an7s
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ata 'ersus Information atais a representation of a fact3 a
num%er3 a *ord3 an image3 a
picture or a sound+ Informationis data that is
meaningfu! or usefu! to someone+
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Types of Information
Systems >ersona! information systems
5ord >rocessing Spreadsheet or "nancia! ana!ysis ata%ase raphics or presentation soft*are
5or7groupinformation systems (!ectronic mai! .e
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Types of Information
Systems .contd+ Organi8ationa!information
systems ainframe computers 5ide area net*or7 .5A
Interorgani8ationa!information
systems (!ectronic ata Interchange .(I (!ectronic =unds Transfer .(=T
!o%a!information systems >roduction schedu!ing system
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;o* sers se
Information Systems sers may use an information system
direct!y%y pressing 7eys on a computer
7ey%oard or %y operating a piece ofe9uipment that sends input data to acomputer+
A user may use an information system
indirect!y%y ha'ing someone e!se enterthe data and recei'e the output *hich isthen gi'en to the user+
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(thica! se of Information
Systems (thicshas to do *ith the standards
of %eha'ior that peop!e fo!!o*D
*hat is right and *hat is *rong+
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(thica! se of Information
Systems .contd+ (thica! use of information systems
in'o!'esD Con"dentia!ity of information Copying of soft*are se of someone e!ses computer
O*nership of information
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et*or7s A net*or7is a co!!ection of computers
and re!ated e9uipment connected using
communications e9uipment so that theycan communicate *ith each other+
$oca! Area et*or7s .$A co'er a sma!!area such as a %ui!ding+
5ide Area et*or7s .5A co'er a!arge area such as a city3 region3country or se'era! countries+
.e"ne the term
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The Internet and the
5or!d 5ide 5e% .555The Internetis a *or!d*ide
co!!ection of interconnected
net*or7s+The 5or!d 5ide 5e% .555is a
ser'ice on the Internet that !in7s
information stored on di,erentcomputers+
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(!ectronic Commerce
.(
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Bene"ts of Information
Systems Better information Impro'ed ser'ice Increased producti'ity Competiti'e ad'antage
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Eey Terms Computer
App!ication Computer
Information System.CIS
ata (!ectronic Commerce (!ectronic ata
Interchange .(I (!ectronic =unds
Transfer .(=T
(!ectronic ai! .e