Operating System Design — Summer 2018

Define Operating System. Draw and explain the block diagram of system kernel.

What is File System? Explain Unix file system in detail.

Draw and explain Complete Process State Transition Diagram in details.

Explain various data structures related to process subsystem and file subsystem.

Explain how disk blocks are allocated in UNIX with appropriate example.

Define Buffer Catch with merit and demerit.

Describe Structure of Disk Inode? What is the use of Inode. Explain Inode in detail.

Explain Scheduling with short, medium and long-term scheduler.

What is procedure for reading & writing disk blocks? Write simple algorithm for the same.

Explain Read and Write System call.

Explain Block Read Ahead algorithm.

Explain the unlink system calls with it algorithm

Explain Bread and Breada algorithms.

What is Shell? Explain System Boot and Init process.

Explain the following commands in Unix OS. 1) chmod 2) ls 3) mkdir

What is Signals? Explain the handling of Signals by Kernel.

Explain the following commands in Unix OS. 1) rmdir 2) pwd 3) grep