U+0003 "ETX" END OF TEXT Unicode Character

U+0003 "ETX" END OF TEXT is a control character originally defined for telegraph and early computer communication protocols to signal the conclusion of a text or data stream, distinguishing it from other control codes like STX (Start of Text). Within the Unicode standard, it occupies the C0 control code range and is primarily used in low level serial protocols, terminal emulation, and telecommunications to denote where transmitted information ends, allowing receiving systems to properly parse or terminate processing. In modern computing, it maintains historical significance and can appear in raw data streams, but it is not typically rendered as a visible glyph in text processing.