End-of-text character
Encyclopedia
The End Of Text character (ETX) is an ASCII
control character
used to inform the receiving computer that the end of the data stream has been reached. This may or may not be an indication that all of the data has been received.
Often used as a "break" character (Control-C
) to interrupt a program or process. In TOPS-20
, it was used to gain the system's attention before logging in.
It is often used in conjunction with Start of text (STX) and Data Link Escape (DLE) e.g. to distinguish frames in the Data link layer
.
ASCII
The American Standard Code for Information Interchange is a character-encoding scheme based on the ordering of the English alphabet. ASCII codes represent text in computers, communications equipment, and other devices that use text...
control character
Control character
In computing and telecommunication, a control character or non-printing character is a code point in a character set, that does not in itself represent a written symbol.It is in-band signaling in the context of character encoding....
used to inform the receiving computer that the end of the data stream has been reached. This may or may not be an indication that all of the data has been received.
Often used as a "break" character (Control-C
Control-C
Control-C is a common computer command. It is generated by pressing the key while holding down the key on a computer keyboard.In graphical user interface environments that use the control key to control the active program, control-C is often used to copy highlighted text to the clipboard...
) to interrupt a program or process. In TOPS-20
TOPS-20
The TOPS-20 operating system by Digital Equipment Corporation was the second proprietary OS for the PDP-10 mainframe computer. TOPS-20 began in 1969 as the TENEX operating system of Bolt, Beranek and Newman...
, it was used to gain the system's attention before logging in.
It is often used in conjunction with Start of text (STX) and Data Link Escape (DLE) e.g. to distinguish frames in the Data link layer
Data link layer
The data link layer is layer 2 of the seven-layer OSI model of computer networking. It corresponds to, or is part of the link layer of the TCP/IP reference model....
.