Company Company LOGO LOGO Exploring Computers and Their Exploring Computers and Their Uses Uses
Nov 18, 2014
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LOGOLOGO
Exploring Computers and Their UsesExploring Computers and Their Uses
Lecture 02: Roadmap
Computers for Organizations Network Servers Mainframe Computers Minicomputers Supercomputers
Computers in Society
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Computers For Organizations
Network servers Centralized computer All other computers
connect Provides access to
network resources Multiple servers are
called server farms Often simply a powerful
desktop
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Computers For Organizations
Minicomputers Called midrange computers Power between mainframe a
and desktop Handle hundreds of users Used in smaller organizations Users access through a terminal
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Computers For Organizations
Mainframes Used in large
organizations Handle hundreds or
thousands of users
Store tremendous amount of data.
Users access through a terminal
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Computers For Organizations
Supercomputers The most fastest, expensive and powerful computers Can execute 100 trillion instructions in single sec. Weight is 100 tons. Store 20,000 times more data than desktop. Handle large and complex calculations Process trillions of operations per second Found in research organizations, Nuclear energy
research.
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Cont.
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Computers In Society
More impact than any other invention Changed work and leisure activities Used by all demographic groups
Computers are important because: Provide information to users Information is critical to our society Managing information is difficult
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Computer in Society
Computers at home Many homes have multiple
computers Most American homes have
Internet Computers are used for
Business Budgeting and financial mangment Entertainment Communication Education
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Computers In Society
Computers in education Computer literacy required at all levels
Computers in small business Makes businesses more profitable Allows owners to manage
Computers in industry Computers are used to design products Computer aided Manufacturing(CAM)
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Computers In Society
Computers for Mobile Users Computers for power users Computers for large business users. Computers for traveling Computers for publishing Computers in Finance
Example Online Banking
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Computers In Society
Computers in government Necessary to track data for
population Police officers Tax calculation and collection
Governments were the first computer users
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Computers In Society
Computers in health care Revolutionized health care New treatments possible Scheduling of patients has
improved Delivery of medicine is
safer
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