Operating Systems
Laurie Ganz Klye Leahy
Tommy MendozaHeather Shriner
Katie Wagner
Operating System“ an interface between your computer and the outside world. ”
organize and control hardware and software so that the device it lives in behaves in a flexible but predictable way.
Operating System Functions
• Translation
• Monitoring the computers overall performance
• Provides functions
The Evolution of Operating Systems
• No Operating Systems
• Monitors
• Simple Batch Systems
• Multiprogrammed Batch Systems
• Time Sharing Systems
When Operating Systems didn’t Exist
• technological capabilities
• Individual Programs
• One person used the computer at a time
• “Job Scheduling”
• Libraries 1st procedure
Monitors• RAM
• device drivers
•jumping back to the monitor.
Simple Batch Systems
• Punched Cards
• Input process
• Operating system process
• Output Process
Job Control Language
•JCL was used?
• Identified as JCL or data.
• What program needs to be run or what data file will be
used.
Multi -Programmed Batch Systems• Several programs
• Switch from oneuser environment to
another.
• Relied on hardware
Time Sharing
• Multiprogramming
• Time Shared
• Multiple users
• A new control language
UNIX…………1960’s.•Widely Accepted and available
specifications
•Assurance that products meet agreed specifications
•Three parts to its operating system•Kernel•Shell
•Other Programs
What businesses consider
• Cost• Available Applications• Ease-of-use• Reliability
Department of Child Support Services
• County of San Diego – Operating System:• Windows XP Professional
– Factors• COST• Reliability
Cox Communications
• Large cable, phone, internet, etc. company– Operating system:• Windows XP
– Plan to upgrade to Windows 7 once it is proved to be a reliable Operating System
– Factors:• Store extremely large amounts of information• Ease of use for employees• Cost
Passage Productions
• Film, video, and broadcast production company– Uses a combination of Mac OS and Windows OS• Offer different applications needed to run their
business• Mac uses 64-bit platform, as does many of their
platforms• Use Adobe
– cross-compatible
• Find Mac to be easier to use
CSUSM
• California State University– Operating System: • Windows Vista
– Factors:• Cost• Ease-of-Use• Reliability
– CSUSM stresses the importance of up-to-date technology
Porter’s Five Forces
Trends in OS
• Historical trends• User’s Needs• Competition (Macintosh vs. Windows)• http://www.youtube.com/watch?v=FxOIebkm
rqs
Historical Trends
-Manufacturing companies- Multiprogramming
-1970’s Unix- Universities/Research Labs
-Microprocessors-Graphical User interface
User Needs
• Language• Types of Users needs:
-Programmer, business, personal, hacker.– Visual aids– Virus Protection– Malfunctions
Macintosh & Windows
• Personal vs. Business-Market share
• Visual appeal• Popularity• Function/ Ease of use
What does the Future hold?
-New improvements-New Age in OS
http://www.youtube.com/watch?v=yBqDpVquIbI
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