Operating Systems: Process and Memory Management

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Questions and Answers

What is one of the responsibilities of the operating system in process management?

Optimizing CPU architecture
Handling network communication processes
Managing user interface processes
Creating and deleting both user and system processes (correct)

What does memory management determine?

The speed of the network connection
What is in memory and when (correct)
How many CPU cores are available
The size of the hard disk

What is a key function provided by the operating system in process management?

Providing mechanisms for process synchronization (correct)
Optimizing database queries
Managing application interfaces
Controlling hardware peripherals

Why must all (or part) of the instructions of a program be in memory to execute it?

To enable the CPU to access and execute the program's instructions (A) Signup and view all the answers

What does memory management aim to optimize?

CPU utilization and computer response to users (D) Signup and view all the answers

What is one of the responsibilities of the operating system in process management?

Creating and deleting both user and system processes (A) Signup and view all the answers

What does memory management aim to optimize?

CPU utilization and computer response to users (A) Signup and view all the answers

Why must all (or part) of the instructions of a program be in memory to execute it?

To allow the CPU to directly fetch instructions from memory (B) Signup and view all the answers

What does memory management determine?

What data is in memory and when (C) Signup and view all the answers

Which activity is NOT a responsibility of the operating system in process management?

Optimizing disk space allocation for processes (B) Signup and view all the answers

Study Notes

Process Management

A process is a program in execution, and it is a unit of work within the system.
Program is a passive entity, whereas a process is an active entity.
A process requires resources to accomplish its task, including:
- CPU
- Memory
- I/O
- Files
- Initialization data
Process termination requires the reclaim of any reusable resources.

Process Characteristics

A single-threaded process has one program counter, specifying the location of the next instruction to execute.
The process executes instructions sequentially, one at a time, until completion.
A multi-threaded process has one program counter per thread.
Typically, a system has many processes, including:
- User processes
- Operating system processes
- Running concurrently on one or more CPUs

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Description

Test your knowledge on process management, memory management, file system management, protection, and security in operating systems. Learn about processes, resource needs, initialization, termination, and memory management concepts.