Computers store text characters as numbers in a file. This is file encoding. Different encoding standards use different numbers for different characters. For example, ASCII encoding stores the letter A as the number 65, while UTF-8 encoding stores the letter A as the number 97. File encoding helps computers and programs read and display text correctly.
Computers store data as bits, which are 0 or 1. A byte is a group of eight bits, and it can store one character. For example, ASCII encoding stores the letter A as the byte 01000001. But one byte can only store 256 different characters, which is not enough for all the languages and symbols in the world. So different encoding standards use more than one byte to store more characters. For example, UTF-8 encoding can use up to four bytes to store one character, and it can store over a million different characters.
File encoding affects how text files open and save. If you open a text file with a different encoding than the one it saved with, you may see strange or unreadable characters on the screen. For example, this may happen if you open a file that saved with UTF-8 encoding with ASCII encoding: é instead of é. To avoid this problem, you need to choose the right encoding when you open or save a text file. You can also use Unicode encoding, which is a common standard that can store most character sets across all languages
Computers store data as bits, which are 0 or 1. A byte is a group of eight bits, and it can store one character. For example, ASCII encoding stores the letter A as the byte 01000001. But one byte can only store 256 different characters, which is not enough for all the languages and symbols in the world. So different encoding standards use more than one byte to store more characters. For example, UTF-8 encoding can use up to four bytes to store one character, and it can store over a million different characters.
File encoding affects how text files open and save. If you open a text file with a different encoding than the one it saved with, you may see strange or unreadable characters on the screen. For example, this may happen if you open a file that saved with UTF-8 encoding with ASCII encoding: é instead of é. To avoid this problem, you need to choose the right encoding when you open or save a text file. You can also use Unicode encoding, which is a common standard that can store most character sets across all languages
Today topic we are talking about the content: how to encode and stored info in computer . if you can understand it clearly, you can use programming language for write files with any format.
This topic is focus two thing:
- Help you easy understanding the text encoding and file encoding
- Support you one Tool, Software for check file encoding
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Let's see how to window work => below pictures is generator from binary number to Hex data. After that using basic encoding to translate for users purpose.
Understand how Unicode works:
To understand how Unicode works, you need to first understand how encoding works. Any text file containing data that you open and edit in Window is displayed using encoding. In the simplest terms, encoding is how the raw hex data of a file is interpreted and displayed in the editor as readable text, which you then can manipulate using your keyboard.
Since we know that everything on our computer is composed of 0's and 1's, you can visualize how encoding works by looking over the following diagram.
Translate binary code to ASCII
Unicode strives to map most of the world's written characters to a single encoding set. This allows you to view Chinese scripts, English alphanumeric characters, Russian and Arabic text all within the same file without having to change the encoding (code page) for each specific text.
Prior to Unicode, you would probably have needed to select a different code page (encoding) to see each script, and most of the scripts would not have been viewable at the same time (or at all).
Translate binary code to UNICODE
The list thing: Unicode vs. UTF-8, UTF-16, etc.
Because the hex format of Unicode requires many extra, sometimes unnecessary bytes (hex separator characters), a derivation of Unicode was developed to conserve space and optimize the hex data of Unicode strings (and subsequently file size) called UTF-8 (Unicode Transformation Format in 8-bit format).
UTF-8 is still encompassed by the Unicode character set, but its system of storing characters is different and improved. There are other Unicode encoding such as UTF-16, UTF-32, and UTF-7, but UTF-8 is the most popular and widely-used Unicode format today.
How to check file encoding?
This topic I'll suggest you The File Encoding Checker with free listen.
We should Thanks to Jeevan James and licensed under the Mozilla public license 1.1
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You can download tool from here
Relative topics: (may be you need it)
C Programming Convert TCVN3 to Unicode
Read Write File In CSharp
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