Student Extended Xinu

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Having students build their own Xinu is one of the potential tracks presented for a professor that is Teaching With Xinu.

Students will learn to extend an operating system by adding kernel level and user level applications. Given a functional Embedded Xinu operating system the students will have to understand and manipulate existing operating system code to create additional operating system features. To add more applications to the operating system students will have to understand the interactions between the program in design and the operating system's device and kernel interaction calls. Programming for embedded devices allows students to engage in development on small resource constrained environments. Through extending the existing Embedded Xinu operating system a student learns to use and understand code not written by the student and develops advanced operating system concepts.

Course Outcomes

Potential Course Structure

An course using the below course outline or something similar will introduce students to some fundamental and advanced concepts of operating systems combined with the development in a resource constrained environment.

Course Outline
Week Topics Assignments
01 C (basics) and OS Structures, Processes C Basics
02 C (functions, control flow) and Processes
03 C (pointers, arrays, structs) and Threads C Structs and Pointers
04 CPU Scheduling Synchronous Serial Driver
05 CPU Scheduling
06 Process Synchronization Context Switch and Non-Preemptive Scheduling
07 Deadlocks Priority Scheduling and Process Termination
08 Main Memory and Virtual Memory
09 File System Interface Preemption and Synchronization
10 File System Implementation
11 Mass-Storage Structure Delta Queues
12 I/O Systems Heap Memory
13 Protection, Security and Distributed System Structures Asynchronous Device Driver
14 Distributed System Structures
15 Distributed File Systems Ultra-Tiny File System