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COMP6005 An Introduction to Computing Session Two: Computer Hardware Human and Computer Interaction...
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Transcript of COMP6005 An Introduction to Computing Session Two: Computer Hardware Human and Computer Interaction...
COMP6005 An Introduction to ComputingCOMP6005 An Introduction to ComputingSession Two: Computer HardwareHuman and Computer InteractionSession Two: Computer HardwareHuman and Computer Interaction
ObjectivesObjectives
Understand the importance of computer literacy
Discuss why a computer is a powerful tool
Identify the types of computer users
Discuss various computer applications in society
Understand the importance of computer literacy
Discuss why a computer is a powerful tool
Identify the types of computer users
Discuss various computer applications in society
Computer LiteracyComputer Literacy
Having a knowledge and understanding of computers and their uses (Discovering Computers 2005)
Issue 1-1, pg 9
Having a knowledge and understanding of computers and their uses (Discovering Computers 2005)
Issue 1-1, pg 9
Computers As Powerful Tools
Computers As Powerful Tools
Reliability
Speed
Consistency
Accuracy
Storage
communications
Reliability
Speed
Consistency
Accuracy
Storage
communications
QuizQuiz
Get in groups of two and within the given timeframe, see how many questions you get correct from the site below
http://www.scsite.org/dc2005/quiz
Get in groups of two and within the given timeframe, see how many questions you get correct from the site below
http://www.scsite.org/dc2005/quiz
Types of ComputersTypes of Computers
Supercomputers
Mainframes
Midrange servers
Personal computers Desktops Notebooks
Mobile computers and devices
Supercomputers
Mainframes
Midrange servers
Personal computers Desktops Notebooks
Mobile computers and devices
SupercomputersSupercomputers
Fastest, most powerful computer (processing speed of more than 100 trillion instructions in a second)
Most expensive
Used for applications requiring complex sophisticated mathematical calculations Applications in aerospace, medicine,
automotive design, online banking, weather forecasting, nuclear energy research, petroleum exploration
Fastest, most powerful computer (processing speed of more than 100 trillion instructions in a second)
Most expensive
Used for applications requiring complex sophisticated mathematical calculations Applications in aerospace, medicine,
automotive design, online banking, weather forecasting, nuclear energy research, petroleum exploration
MainframesMainframes
Large, expensive, very powerful
Can handle hundreds or thousands of connected users simultaneously
Stores tremendous amounts of data, instructions, information
Used by banks, airlines, insurance companies
Also used to act as servers on a network environment Access via terminals, PCs, midrange servers, other
mainframes
Large, expensive, very powerful
Can handle hundreds or thousands of connected users simultaneously
Stores tremendous amounts of data, instructions, information
Used by banks, airlines, insurance companies
Also used to act as servers on a network environment Access via terminals, PCs, midrange servers, other
mainframes
Midrange ServersMidrange Servers
Previously referred to as minicomputers
Less powerful than mainframe; more powerful than workstation
Typically support several hundred (sometimes up to few thousand) connected computers at same time
Previously referred to as minicomputers
Less powerful than mainframe; more powerful than workstation
Typically support several hundred (sometimes up to few thousand) connected computers at same time
Personal Computers (PCs)Personal Computers (PCs)
Can perform all the input, processing, output and storage by itself
One simultaneous user at a time; more if networked
Least expensive;
Small, can fit on a desk (desktop) or on a lap (laptop)
Can be powerful enough to act as a server on a network
Can perform all the input, processing, output and storage by itself
One simultaneous user at a time; more if networked
Least expensive;
Small, can fit on a desk (desktop) or on a lap (laptop)
Can be powerful enough to act as a server on a network
WorkstationsWorkstations
Expensive, powerful desktop
Used for work that requires intense calculation and graphics capabilitiesEngineering, desktop publishing,
graphic art, architecture
Expensive, powerful desktop
Used for work that requires intense calculation and graphics capabilitiesEngineering, desktop publishing,
graphic art, architecture
DiscussionDiscussion
Mac vs PC
Are there two different definitions of a workstation?
Mac vs PC
Are there two different definitions of a workstation?
Categories Of UsersCategories Of Users
Home
Small office/home office
Mobile
Large business
Power
Home
Small office/home office
Mobile
Large business
Power
Applications In SocietyApplications In Society
Education
Finance
Government
Health care
Education
Finance
Government
Health care
Science
Publishing
Travel
Industry
Science
Publishing
Travel
Industry
• Looking Ahead 1-2, pg 33
LinksLinks
ReferenceDiscovering Computers 2005 by
Shelley, Cashman, Vermaat
Of Interesthttp://www.evolution.com/http://www.xybernaut.com/index.asp
ReferenceDiscovering Computers 2005 by
Shelley, Cashman, Vermaat
Of Interesthttp://www.evolution.com/http://www.xybernaut.com/index.asp