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1 Control Code https://store.theartofservice.com/the-control-code-toolkit.html

2 C0 and C1 control codes Protocols interoperability and usage 1 Very few applications interpret the other C0 and C1 control codes, as they are not needed for plain text. https://store.theartofservice.com/the-control-code-toolkit.html

3 C0 and C1 control codes Protocols interoperability and usage 1 The official English language names of some control codes were revised in the most recent edition of the standard for control codes in general (ISO 6429:1992 or ECMA-48:1991) to be neutral with respect to the graphic characters used with them, and to not assume that, as in the Latin script, lines are written on a page from top to bottom and that characters are written on a line from left to right https://store.theartofservice.com/the-control-code-toolkit.html

4 C0 and C1 control codes C0 (ASCII and derivatives) 1 These are the standard ASCII control codes. If using the ISO/IEC 2022 extension mechanism, they are designated as the active C0 control character set with the octet sequence 0x1B 0x21 0x40 (ESC ! @). https://store.theartofservice.com/the-control-code-toolkit.html

5 C0 and C1 control codes C0 (ASCII and derivatives) 1 To provide disambiguation between the two potential uses of backspace, the cancel character control code was made part of the standard C1 control set. https://store.theartofservice.com/the-control-code-toolkit.html

6 C0 and C1 control codes C0 (ASCII and derivatives) 1 ^P1610DLE ␐ Data Link EscapeCause the following octets to be interpreted as raw data, not as control codes or graphic characters. Returning to normal usage would be implementation dependent. https://store.theartofservice.com/the-control-code-toolkit.html

7 C0 and C1 control codes C0 (ASCII and derivatives) 1 ^Q1711DC1 ␑ Device Control One (XON) These four control codes are reserved for device control, with the interpretation dependent upon the device they were connected. DC1 and DC2 were intended primarily to indicate activating a device while DC3 and DC4 were intended primarily to indicate pausing or turning off a device. In actual practice DC1 and DC3 (known also as XON and XOFF respectively in this usage) quickly became the de facto standard for software flow control. https://store.theartofservice.com/the-control-code-toolkit.html

8 C0 and C1 control codes C0 (ASCII and derivatives) 1 ^[271BESC ␛ Escape\eThe Esc key on the keyboard will cause this character to be sent on most systems. It can be used in software user interfaces to exit from a screen, menu, or mode, or in device-control protocols (e.g., printers and terminals) to signal that what follows is a special command sequence rather than normal text. In systems based on ISO/IEC 2022, even if another set of C0 control codes are used, this octet is required to always represent the escape character. https://store.theartofservice.com/the-control-code-toolkit.html

9 C0 and C1 control codes C1 set 1 These are the most common extended control codes. If using the ISO/IEC 2022 extension mechanism, they are designated as the active C1 control character set with the sequence 0x1B 0x22 0x43 (ESC " C). Individual control functions can be accessed with the 7-bit equivalents 0x1B 0x40 through 0x1B 0x5F (ESC @ through ESC _). https://store.theartofservice.com/the-control-code-toolkit.html

10 C0 and C1 control codes C1 set 1 ]1579DOSCOperating System CommandFollowed by a string of printable characters (0x20 through 0x7E) and format effectors (0x08 through 0x0D), terminated by ST (0x9C). These three control codes were intended for use to allow in-band signaling of protocol information, but are rarely used for that purpose. https://store.theartofservice.com/the-control-code-toolkit.html

11 Plain text - Control codes 1 In 8-bit character sets such as Latin-1 and the other ISO 8859 sets, the first 32 characters of the "upper half" (128 to 159) are also control codes, known as the "C1 set" as opposed to the "C0" set just described https://store.theartofservice.com/the-control-code-toolkit.html

12 C0 and C1 control codes 1 The 'C0 and C1 control code' or control character sets define control codes for use in text by computer systems that use the ISO/IEC 2022 system of specifying control and graphic characters. Most character encodings, in addition to representing printable characters, also have characters such as these that represent non-printable character|additional information about the text, such as the position of a cursor, an instruction to start a new line, or a message that the text has been received. https://store.theartofservice.com/the-control-code-toolkit.html

13 C0 and C1 control codes - C1 set 1 These are the most common extended control codes. If using the ISO/IEC 2022 extension mechanism, they are designated as the active C1 control character set with the sequence 0x1B 0x22 0x43 (ESC C). Individual control functions can be accessed with the 7-bit equivalents 0x1B 0x40 through 0x1B 0x5F (ESC @ through ESC _). https://store.theartofservice.com/the-control-code-toolkit.html

14 Control code - How control characters map to keyboards 1 In either case, this produces one of the 32 ASCII control codes between 0 and 31 https://store.theartofservice.com/the-control-code-toolkit.html

15 Control code - Printing and display control 1 With the advent of computer terminals that did not physically print on paper and so offered more flexibility regarding screen placement, erasure, and so forth, printing control codes were adapted https://store.theartofservice.com/the-control-code-toolkit.html

16 Control code - Transmission control 1 The device control codes (DC1 to DC4) were originally generic, to be implemented as necessary by each device https://store.theartofservice.com/the-control-code-toolkit.html

17 Control code - Transmission control 1 The data link escape character (C0 and C1 control codes|DLE) was intended to be a signal to the other end of a data link that the following character is a control character such as STX or ETX. For example a packet may be structured in the following way (C0 and C1 control codes|DLE) (C0 and C1 control codes|DLE). https://store.theartofservice.com/the-control-code-toolkit.html

18 Control code - Miscellaneous codes 1 For example, code 22, synchronous idle (C0 and C1 control codes|SYN), was originally sent by synchronous modems (which have to send data constantly) when there was no actual data to send https://store.theartofservice.com/the-control-code-toolkit.html

19 For More Information, Visit: https://store.theartofservice.co m/the-control-code- toolkit.html https://store.theartofservice.co m/the-control-code- toolkit.html The Art of Service https://store.theartofservice.com


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