Questions and Answers
What is a text file?
A simple type of file that contains text
What type of data does a wave file (WAV) store?
Audio data
How are bitmap files (BMP) composed?
By pixels with unique colors
What is a flat file system?
Signup and view all the answers
How do modern file systems address the issue of overwriting in flat file systems?
Signup and view all the answers
What does ASCII encoding do for text files?
Signup and view all the answers
What is the purpose of the 'Write Back' step in the Fetch-Decode-Execute cycle?
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?
Signup and view all the answers
What does the program counter do in the 'Repeat' phase of the Fetch-Decode-Execute cycle?
Signup and view all the answers
What role does the Fetch-Decode-Execute cycle play in the operation of a CPU?
Signup and view all the answers
What is the purpose of the Decode phase in the Fetch-Decode-Execute cycle?
Signup and view all the answers
Which component contains the address of the next instruction to be executed in the Fetch phase?
Signup and view all the answers
What is the purpose of the Execute phase in the Fetch-Decode-Execute cycle?
Signup and view all the answers
What does the CPU do during the Fetch phase of the Fetch-Decode-Execute cycle?
Signup and view all the answers
Which component interprets the opcode portion of the fetched instruction in the Decode phase?
Signup and view all the answers
In which phase is the program counter incremented to point to the next instruction?
Signup and view all the answers
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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.
