391OS-36 Online Demo

Press Alt+F1/F2/F3 to switch terminal. Press Ctrl+C to interrupt. Press Ctrl+H to get help.
Press Ctrl+S to enable/disable scheduler, so it can mimic the environment prior to CP5.

For more combinational keys and technical info, please refer to the Technical Overview page.
This page is best viewed on a computer. Refresh the page to reset the emulator.

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Introduction

Office Hours

I have graduated from UIUC ECE in December 2023.
Currently, I am a MS student in the CS department. You can still reach me on campus.

~~I am hosting office hours again for ECE 391 in Fall 2023.~~
~~If you ever need help, please come to ECEB 3026 on 4-7 Sat.~~

~~I am hosting office hours for ECE 391 in Spring 2023.~~
~~If you ever need help, please come to ECEB 3026 on 19-22 W or 18-22 F.~~

Known Issues

cat . (root file system) does not work as expected from the MP assignment.

The expected behavior should display a list of files (please check the MP documentation). Please do not follow the wrong behavior.

A page fault exception may occur when initializing paging during boot up. This only occurs occasionally in the web emulator.
"Kill the process" function in Process Manager (a custom design, not required) is not compatible with the scheduler.
The web emulator is not compatible with IDM. Please add os.paizhang.info to the IDM exception list or manually cancel the downloads.