chap-1x - Penn State Personal Web Server

stripeoddΗλεκτρονική - Συσκευές

8 Νοε 2013 (πριν από 4 χρόνια και 7 μήνες)

86 εμφανίσεις

Chrissy Burcham

MIS 204

January 25
, 2008

Chapter 1


The elements of an Information System are hardware, software, data, people and procedure.


The components of a computer are Input Devices (digital camera, mouse), Output Devices(MP3
Player, Monitor),
System Unit, Storage Devices(hard disk drive, USB flash drive), and
Communications Devices(modem).


The advantages of using a computer are first the speed in which you can access information
from music to reports for your work. It is all only a click away
. Computers are also consistent
and reliable, the rarely break and have the consistent results. There is mass storage on
computers that can be access easily and quickly. And there is always the ever present
advantage of computers giving us the advantage

of communicating with other computers/users

The disadvantages of computers are the Violation of privacy as well as public safety. There is so
much of our personal information stored on computers that it has become the career of some
to steal ide
ntities and to violate their privacy. With the internet people have discovered new
ways to share their personal information and to find their own world on the web. This has
offered criminals a new arena to work in. Internet predators are online and it i
s imperative to
keep an eye on who is online with your family at all times. Along with the advantage of speed,
consistency and reliability of computers has come a heavy impact on the labor force. With the
ability to eliminate human error and increase spe
ed has resulted in the loss of new jobs and the
replacement of human employees with computers. Prolonged/Improper computer use can
result in Health Risks, another disadvantage of using a computer. There are environmental
impacts to using computers as wel
l. With the production of computers comes the depletion of
natural resources and computer waste are polluting the environment.


Four different types of computer users are the Home, SoHO, Mobile and Large business user.
For the home user the computer offe
rs them a variety of ways to complete everyday tasks such
as budgeting, meal planning, communicating with work/family, entertainment, ect. Home users
usually work on a desktop/notebook computer, PDA, and have game consoles. For the Small
office/Home offi
ce variety they are primarily using the computer to communicate, plan, and to
manage business accounts. They primarily use a desktop, and use PDA devices. Mobile users
are people who need to complete school/work away from the home. They usually have a
otebook, PDA, or smart phone to help them connect with programs and the internet. And
lastly we have our large business owner who computer users include everything from
accounting to email. They are equipped with a server or mainframe, desktop/notebook,
specific hand help computer, PDA, Kiosk.


Description and examples of Personal, Embedded, Mainframe, and Mobile Computers.


A. Personal Computer: a computer that can perform all of its input, processing, output,
and storage activities by itself.

An example is the PC and the Apple.


Embedded Computer: a special purpose computer that function as a component in a
larger product. An example is your mobile phone, digital camera, vehicle cruise control.


Mainframe Computer: a large powerful computer
that handles hundreds of thousand
users simultaneously. An example of a mainframe is on US Navy ships, all
computer/communications is connected through the mainframe.


Mobile Computers: a computer that has memory stored internally or on small memory
. Most are Internet enabled. Examples are the smart phone, and PDA.