Download Operating Systems

Operating Systems
A Brief Introduction.
Part A'
11/4/2001
Theodore Chrysafis - ENG102 Academic Writing - City College
1
Introduction
• First Software.
• Control Operations.
• Last Software.
11/4/2001
Theodore Chrysafis - ENG102 Academic Writing - City College
2
The Backbone
• Microwave Oven vs Personal Computer.
• Common Operating Systems
(MSWindows Family, Unix Family,
Macintosh).
• What the Operating System (OS) does?
– Manage Hardware - Software.
– Manage applications deal with hardware.
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Theodore Chrysafis - ENG102 Academic Writing - City College
3
The Backbone
(continued)
• Four types of OS
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Real Time OS (RTOS)
Single User - Single Task
Single User - Multitask
Multiuser
Theodore Chrysafis - ENG102 Academic Writing - City College
4
Starting the PC
• ROM
• POST (Power On Self Test)
• Bootstrap Loader
11/4/2001
Theodore Chrysafis - ENG102 Academic Writing - City College
5
Operating System Tasks
• There are six common categories of OS
tasks.
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Processor Management
Memory Management
Storage Management
Device Management
Application Interface (API)
User Interface
Theodore Chrysafis - ENG102 Academic Writing - City College
6
The Future
• Functions a court might allow to be bundled
into an OS.
• Creation of an OS usable from corporations
and consumers.
11/4/2001
Theodore Chrysafis - ENG102 Academic Writing - City College
7
Links
• Reference
http://www.howstuffworks.com/operating-system.htm
• OS Projects and Related Research
http://www.cs.arizona.edu/people/bridges/oses.html
• Os News, On-Line Magazine
http:///www.osnews.com
• OS Web News, About OS
http://www.osweb.net
• comp.os.research, FAQ
http://www.best.com/~bos/os-faq
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Theodore Chrysafis - ENG102 Academic Writing - City College
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