Lecture Notes 09: Operating Systems 1

Outline

This class we'll discuss:

• Recap: Hardware
• Software Types
• OS functions

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Recap:Hardware

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Operating Systems

Where is it and what does it do?

The Three Softwares!

OS Software

What does the OS do?

Check this animation of important memory management actions:

System Bus

• Simple computer designs connect memory & all peripherals via a system bus
• Set of wires connected to CPU & peripherals
• Separate wires for command codes, address, data
• All devices listen but ignore commands to others
• Only one can use bus at a time

Boot Sequence Animation

How to see your system info (Windows Version)

Note: The Mac Version will be shown live in class.

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Homework 03

Timeline:

1. Submit draft by 10/6 (Wed)
2. Submit final version plus Original Reviews by 10/14 (Thu)

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Before next class (TBD)

[Due for everyone]

[Optional]

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1-Minute Debrief

Please fill this out before leaving: