Text Files vs Binary Files and C++ File Opening Modes
English with a size of 3.81 KB1. Compare text files and binary files with respect to storage, processing speed, memory utilization, and applications.
Comparison Between Text Files and Binary Files
| Basis | Text Files | Binary Files |
|---|---|---|
| Storage | Data is stored as characters (ASCII/Unicode). Numbers are stored in readable form. | Data is stored in binary (0s and 1s) in the format used by the computer. |
| Processing Speed | Generally slower because data may need to be converted between characters and internal formats. | Generally faster because data can be read/written in its native binary format. |
| Memory Utilization | Usually requires more storage space, especially for numerical data. | Usually requires less storage space because data is stored more compactly. |
| Readability | Human-readable; can be opened with Notepad or a text editor. | Not human-readable; requires a suitable program to interpret the data. |
| Applications | Used for source code, configuration files, logs, .txt files, etc. | Used for images, videos, audio, executable files, databases, etc. |
| Portability | Generally more portable because different systems can easily interpret text. | May depend on the system/program and the format in which the binary data is stored. |
Simple Example:
- Text file:
Dhruv 18 85— The information is stored as readable characters. - Binary file: The same information is stored in binary form according to the computer's data representation, so opening it in a normal text editor may show unreadable symbols.
2. Explain various file opening modes available in C++. Discuss the significance of each mode with suitable examples.
File Opening Modes in C++
File opening modes specify how a file should be opened for reading, writing, appending, etc.
1. ios::in — Reading
- Used to read data from a file.
- The file must generally exist.
ifstream file("data.txt", ios::in);2. ios::out — Writing
- Used to write data into a file.
- Creates the file if it does not exist.
- Existing contents are normally overwritten.
ofstream file("data.txt", ios::out);
file << "Hello World";3. ios::app — Append
- Adds new data at the end of the file.
- Existing data is preserved.
ofstream file("data.txt", ios::app);
file << "New line";4. ios::ate — At End
- Opens the file with the file pointer initially at the end.
- The pointer can be moved to another position.
fstream file("data.txt", ios::in | ios::ate);5. ios::trunc — Truncate
- Deletes existing contents when the file is opened for writing.
- New data can be written to the empty file.
ofstream file("data.txt", ios::out | ios::trunc);6. ios::binary — Binary Mode
- Opens a file in binary mode.
- Used for images, audio, video, and other binary data.
ifstream file("image.jpg", ios::in | ios::binary);