QUIZ NUMBER 3

1.) WHAT ARE THE MAJOR ACTIVITIES OF THE OPERATING SYSTEM WITH REGARDS TO PROCESS MANAGEMENT.

• PROCESS CREATION AND DELETION
• PROCESS SUSPENSION AND RESUMPTION
• PROVISION OF MECHANISM FOR:

-PROCESS SYNCHRONIZATION

-PROCESS COMMUNICATION

-DEADLOCK HANDLING

2.)WHAT ARE THE MAJOR ACTIVITIES OF THE OPERATING SYSTEM WITH REGARDS TO MEMORY MANAGEMENT.

• KEEP TRACK OF W/C PARTS OF MEMORY ARE CURRENTLY BEING USED AND BY WHOM.
• DECIDE W/C PROCESSES TO LOAD WHEN MEMORY SPACES BECOMES AVAILABLE.
• ALLOCATE AND DEALLOCATE MEMORY SPACE AS NEEDED.

3.)WHAT ARE THE MAJOR ACTIVITIES OF THE OPERATING SYSTEM WITH REGARDS TO SECONDARY STORAGE MANAGEMENT.

• FREE SPACE MANAGEMENT
• STORAGE ALLOCATION
• DISK SCHEDULING

4.)WHAT ARE THE MAJOR ACTIVITIES OF THE OPERATING SYSTEM WITH REGARDS TO FILE MANAGEMENT.

• FILE CREATION AND RELATION
• DIRECTORY CREATION AND DELETION
• SUPPORT OF PRIMITIVES FOR MANIPULATING FILES AND DIRECTORIES
• MAPPING FILES ONTO SECONDARY STORAGE
• FILE BACKUP ON STABLE(VOLATILE)STORAGE MEDIA

5.)WHAT ARE THE PURPOSE OF COMMAND INTERPRETER

-IT SERVES AS THE INTERFACE BETWEEN THE USER AND THE O.S

-ITS FUNCTION IS TO GET AND EXECUTE THE NEXT COMMAND STATEMENTS.

-IT DEALS WITH:

• PROCESS CREATION AND MANAGEMENT
• I/O HANDLING
• SECONDARY-STORAGE MANAGEMENT
• MAIN-MEMORY MANAGEMENT
• FILE-SYSTEM ACCESS
• PROTECTION
• NETWORKING

- PROGRAM THAT READ AND INTERPRETS CONTROL STATEMENTS IS CALLED VARIOUSLY:

• COMMAND LINE INTERPRETER
• SHELL IN (UNIX)