COS 122_Lecture 10

What does the Process Control Block (PCB) NOT typically contain?

• Process state

• Program counter

• CPU registers

• User manuals

What is the primary function of I/O tables maintained by the OS?

• To keep track of main memory usage

• To manage I/O devices and channels

• To store process control blocks

• To manage network connections

What information is typically NOT included in file tables maintained by the OS?

• File location on secondary memory

• Current status of files

• User credentials

• Existence of files

In a sophisticated multiprogramming system, what kind of information is essential for each process?

• Network settings

• Memory allocation

• Process identification

• User preferences

Which process control structure includes a set of data locations for local and global variables and any defined constants?

• Process image

• Virtual memory

• Memory table

• I/O table

Which table must include protection attributes of blocks of main or virtual memory?

• Memory tables

• I/O tables

• File tables

• Process tables