Step 1: Determine the UTF-8 encoding bit layout
The character ! has the Unicode code point U+0021. In UTF-8, it is encoded using 1 byte because its codepoint is in the range of
0x0000to0x007f.
Therefore we know that the UTF-8 encoding will be done over 7 bits within the final 8 bits and that it will have the format:0xxxxxxx
Where thexare the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+0021 to binary:
00100001. Those are the payload bits.Step 3: Fill in the bits to match the bit pattern:
Obtain the final bytes by arranging the paylod bits to match the bit layout:
00100001
EXCLAMATION MARK·U+0021
!
Character Information
Code Point
U+0021
HEX
0021
Unicode Plane
Basic Multilingual Plane
Category
Other Punctuation
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | 21 | 00100001 |
| UTF16 (big Endian) | 00 21 | 00000000 00100001 |
| UTF16 (little Endian) | 21 00 | 00100001 00000000 |
| UTF32 (big Endian) | 00 00 00 21 | 00000000 00000000 00000000 00100001 |
| UTF32 (little Endian) | 21 00 00 00 | 00100001 00000000 00000000 00000000 |
HTML Entity
!
URI Encoded
!
Description
The Unicode character U+0021, known as the Exclamation Mark (EXCLAMATION MARK), plays a significant role in digital text communication. This punctuation mark is commonly used to express strong emphasis, surprise, or high emotion, often at the beginning or end of a sentence. Its usage can be traced back to its origin in printing presses around the 15th century, where it represented an exclamation or command. Today, this character holds importance not only in written language but also in programming languages, serving as a logical operator known as the NOT operator. This versatile character's ability to convey emphasis and serve as a command or operator underscores its influence on digital communication today. The EXCLAMATION MARK is part of the Basic Latin Unicode block, which encompasses 128 essential characters spanning from U+0000 to U+007F. This range includes control codes and special symbols that play indispensable roles in programming languages, text documents, and various other applications. The basic Latin Unicode block is the foundation upon which many other Unicode blocks are built and continues to be an integral part of digital communication. Despite its historical roots in the ASCII character set, the Basic Latin Unicode block has evolved to accommodate modern needs.
How to type the ! symbol on Windows
Hold Alt and type 0033 on the numpad. Or use Character Map.