Chp 1 – Introduction to
Computers
Section 4-6
Mobile Computer and Mobile Device
• Mobile Computers – can be carry from place to
place
• Mobile Devices – a computer device small
enough to hold in your hand
Notebook Computer/Laptop Computer
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Most popular type of mobile computer
Fits in your lap
Thin and light weight
Usually more expensive then a desktop with the
same capabilities
Tablets PCs
• Special type of notebook computer that allows
you to write or draw on the screen using a digital
pen
• Some have attached keyboards
• Especially useful for taking notes
Mobile Devices
• Usually don’t have disk drives
• Store program and data permanently on special
memory inside the system unit or on small
storage media such as memory cards
• Some have Internet-enable
Five Popular Types of Mobile Devices
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Smart Phones
PDA (personal digital assistant)
Handheld Computers
Portable Media Players
Digital Cameras
Game Consoles
• Mobile computing device designed for singleplayer or multiplayer video game
• Three popular models
▫ Microsoft’s Xbox 360
▫ Nintendo’s Wii
▫ Sony Playstation 3
Servers
• Controls access to the hardware, software, and
other resources on a network
• Can support two or several thousand connected
computer
Mainframes
• A large, expensive, powerful computer that can
handle 100 or 1000 of connected users
• Stores tremendous amounts of data, instruction
and information
Supercomputer
• Fastest, most
powerful, most
expensive computer
• Can process more
than one quadrillion
instructions in a
single second
Embedded Computers
• A special-purpose computer that function as a
component in a larger product
• Everywhere – at home, in your car, and at work
Elements of a Information System
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Hardware – must be reliable
Software – need to be develop carefully
Data – entered in correctly
People – should be skilled
Procedure – readily available
Example of Computer Users
• Home users – family member who uses a
computer for a variety of reason such as
budgeting and personal finance
• Small Office/Home Office (SOHO) – Company
with 50 employees and self-employed people
who work from home
Example of Computer Users
• Mobile Users - Work on a computer a mobile
computer while away from a main office, home
office or school
• Power Users – requires the capabilities of a
workstation or other types of powerful
computers
▫ Example of power users: engineer, scientist,
architect, desktop publisher, and graphic designer
Example of Computer Users
• Enterprise Users – work in or interact with a
company with many employees and uses a
computer network that process high volume of
transaction in a single day
Computer Application in Society
• Education – students use computers software to
assist with learning
• Finance – use computers for online banking and
online investment
• Government – have Web sites to provide citizen
with up-to-date information
Computer Application in Society
• Health Care – used to maintain patient records,
monitor patients, and file insurance claims
• Science – use to assist with collecting, analyzing,
and modeling data
• Publisher- use to assist in designing pages and
make the content of their available online
Computer Application in Society
• Travel –online navigation system help people
travel more quickly and safely
• Manufacturer – use computer-aided
manufacturing (CAM) to assist with
manufacturing processes