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