Operating Systems Chapter 4: File Management

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Questions and Answers

What type of memory requires power to maintain stored information?

Permanent memory
Volatile memory (correct)
Flash memory
Non-volatile memory

Non-volatile memory is typically slower than volatile memory.

True (A)

Name one example of volatile memory.

RAM

Examples of non-volatile memory include __________.

hard drives and solid state drives Signup and view all the answers

Match the following types of memory with their characteristics:

Volatile Memory = Requires power to maintain information Non-Volatile Memory = Retains information without power RAM = Example of volatile memory HDD = Example of non-volatile memory Signup and view all the answers

Which of the following is NOT a function covered in file management?

Hardware management (C) Signup and view all the answers

Caching is a type of non-volatile memory.

False (B) Signup and view all the answers

What is the relationship between speed and cost in memory types?

The faster the memory, the more expensive per byte. Signup and view all the answers

The chapter on file management covers file __________ and directory abstraction.

abstraction Signup and view all the answers

Match the following examples with their types:

RAM = Volatile memory SSD = Non-volatile memory CPU Caches = Volatile memory Hard Drive = Non-volatile memory Signup and view all the answers

Volatile memory requires ______ to maintain the stored information.

power Signup and view all the answers

If power is lost, the stored data is also ______.

lost Signup and view all the answers

Examples of volatile memory include ______ and CPU caches.

RAM Signup and view all the answers

Non-volatile memory retains stored information even without ______.

power Signup and view all the answers

Examples of non-volatile memory include hard drives (HDD) and ______ state drives (SSD).

solid Signup and view all the answers

Volatile memory is generally ______ than non-volatile memory.

faster Signup and view all the answers

The faster the memory, the more ______ per byte.

expensive Signup and view all the answers

This chapter will discuss file ______, directory abstraction, and file systems.

abstraction Signup and view all the answers

Caching is mentioned as part of ______ management.

file Signup and view all the answers

What is the main distinction between volatile and non-volatile memory in terms of power requirement?

Volatile memory requires power to maintain stored information, while non-volatile memory retains data without power. Signup and view all the answers

How does the speed of volatile memory generally compare to non-volatile memory?

Volatile memory is generally faster than non-volatile memory. Signup and view all the answers

Name two types of volatile memory and explain their functionality.

Examples of volatile memory include RAM and CPU caches; both require power and lose data when power is lost. Signup and view all the answers

What are the implications of the cost-to-speed relationship in memory types?

The faster the memory, the more expensive it is per byte. Signup and view all the answers

In file management, what abstraction layers are discussed aside from file systems?

The chapter discusses file abstraction and directory abstraction along with file systems. Signup and view all the answers

Identify the types of memory that lose data when power is lost.

Volatile memory types lose data when power is lost. Signup and view all the answers

What are the two primary characteristics of non-volatile memory?

Non-volatile memory retains stored information without power and is generally slower than volatile memory. Signup and view all the answers

Describe the role of caching in file management.

Caching enhances file management by temporarily storing frequently accessed data for faster retrieval. Signup and view all the answers

Explain why volatile memory is important for computer performance.

Volatile memory provides fast access to data needed for ongoing processes, improving system efficiency. Signup and view all the answers

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Study Notes

File Management Overview

Key components of file management include file abstraction, directory abstraction, file systems, and caching.
The chapter does not cover hardware management of storage devices; that will be addressed in the subsequent chapter on I/O and devices.

Volatile vs. Non-Volatile Memory

Volatile Memory
- Requires power to retain stored information.
- Data loss occurs when power is lost.
- Common examples: RAM and CPU caches.
Non-Volatile Memory
- Retains stored information without requiring power.
- Examples include hard disk drives (HDD) and solid-state drives (SSD).
General Characteristics
- Volatile memory is typically faster than non-volatile memory.
- Faster memory usually has a higher cost per byte.
- CPU register access time is approximately 1 nanosecond (ns).

File Management Overview

Key components of file management include file abstraction, directory abstraction, file systems, and caching.
The chapter does not cover hardware management of storage devices; that will be addressed in the subsequent chapter on I/O and devices.

Volatile vs. Non-Volatile Memory

Volatile Memory
- Requires power to retain stored information.
- Data loss occurs when power is lost.
- Common examples: RAM and CPU caches.
Non-Volatile Memory
- Retains stored information without requiring power.
- Examples include hard disk drives (HDD) and solid-state drives (SSD).
General Characteristics
- Volatile memory is typically faster than non-volatile memory.
- Faster memory usually has a higher cost per byte.
- CPU register access time is approximately 1 nanosecond (ns).

File Management Overview

Key components of file management include file abstraction, directory abstraction, file systems, and caching.
The chapter does not cover hardware management of storage devices; that will be addressed in the subsequent chapter on I/O and devices.

Volatile vs. Non-Volatile Memory

Volatile Memory
- Requires power to retain stored information.
- Data loss occurs when power is lost.
- Common examples: RAM and CPU caches.
Non-Volatile Memory
- Retains stored information without requiring power.
- Examples include hard disk drives (HDD) and solid-state drives (SSD).
General Characteristics
- Volatile memory is typically faster than non-volatile memory.
- Faster memory usually has a higher cost per byte.
- CPU register access time is approximately 1 nanosecond (ns).