File Formats and File Systems

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Questions and Answers

What is a text file?

A simple type of file that contains text (correct)

A file format that stores audio data

A file format for storing metadata

A file format for storing images

What type of data does a wave file (WAV) store?

Text data

Audio data (correct)

Image data

Metadata

How are bitmap files (BMP) composed?

By text data

By pixels with unique colors (correct)

By metadata

By audio data

What is a flat file system?

A system where files are stored in the same directory Signup and view all the answers

How do modern file systems address the issue of overwriting in flat file systems?

By using a block storage system Signup and view all the answers

What does ASCII encoding do for text files?

It decodes the binary numbers to display characters Signup and view all the answers

What is the purpose of the 'Write Back' step in the Fetch-Decode-Execute cycle?

To store the results of the execution back to the memory or registers Signup and view all the answers

What happens if an instruction results in a value that needs to be stored, such as the result of an arithmetic operation?

It is written back to the appropriate register or memory location Signup and view all the answers

What does the program counter do in the 'Repeat' phase of the Fetch-Decode-Execute cycle?

It is incremented to point to the next instruction in memory Signup and view all the answers

What role does the Fetch-Decode-Execute cycle play in the operation of a CPU?

It allows the CPU to sequentially execute instructions stored in memory Signup and view all the answers

What is the purpose of the Decode phase in the Fetch-Decode-Execute cycle?

Interpret the fetched instruction to determine the operation to be performed Signup and view all the answers

Which component contains the address of the next instruction to be executed in the Fetch phase?

Program counter Signup and view all the answers

What is the purpose of the Execute phase in the Fetch-Decode-Execute cycle?

Perform the operation specified by the decoded instruction Signup and view all the answers

What does the CPU do during the Fetch phase of the Fetch-Decode-Execute cycle?

Fetches the next instruction from memory Signup and view all the answers

Which component interprets the opcode portion of the fetched instruction in the Decode phase?

Decoder Signup and view all the answers

In which phase is the program counter incremented to point to the next instruction?

Fetch Signup and view all the answers

Study Notes

In the text, Carrie Anne discusses the concept of file formats and how computers manage files using a file system.
A file is a collection of data, which can be stored in various formats such as text files (TXT), wave files (WAV), and bitmap files (BMP).
A text file, like a TXT file, is a simple type of file that contains text. It is essentially a long string of binary numbers, but is decoded using ASCII encoding to display characters.
A wave file (WAV), on the other hand, is a file format that stores audio data. It includes metadata, such as bit rate and whether it is mono or stereo, and has a file header that stores this information.
A bitmap file (BMP) is a file format for storing images. It is composed of pixels, each of which has a unique color represented by three bytes for red, green, and blue.
The file system manages the storage and organization of files, with different methods such as flat file systems and hierarchical file systems.
In a flat file system, all files are stored in the same directory, but this method can lead to issues such as files overwriting each other if new data is added.
Modern file systems address this issue by using a block storage system, where files are stored in blocks with extra space for changes, and allowing files to be split into multiple blocks.
In a hierarchical file system, files are organized into directories, allowing for easier management and access to related files.
The text also mentions that different file formats have specific requirements for how data is stored and organized, which is crucial for understanding how to work with different types of files.

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Description

Explore the concept of file formats and how computers manage files using a file system. Learn about different file formats such as text files (TXT), wave files (WAV), and bitmap files (BMP), and understand the storage and organization of files in flat and hierarchical file systems.