Start: go to the homepage U+2400 bis U+243F Control Pictures
Zeichen für U+2415
Quelle: Noto Sans Symbols2

U+2415 Symbol for Negative Acknowledge

U+2415 wurde in Version 1.1 in 1993 zu Unicode hinzugefügt. Er gehört zum Block U+2400 bis U+243F Control Pictures in der U+0000 bis U+FFFF Basic Multilingual Plane.

Dieses Zeichen ist ein Other Symbol und wird allgemein verwendet, das heißt, in keiner speziellen Schrift.

Das Zeichen ist keine Zusammensetzung. Es hat keine zugewiesene Weite in ostasiatischen Texten. In bidirektionalem Text handelt es als Other Neutral. Bei einem Richtungswechsel wird es nicht gespiegelt. Das Wort, das U+2415 mit ähnlichen Zeichen bildet, verbietet in sich Zeilenumbrüche.

Die Wikipedia hat die folgende Information zu diesem Codepunkt:

In data networking, telecommunications, and computer buses, an acknowledgment (ACK) is a signal that is passed between communicating processes, computers, or devices to signify acknowledgment, or receipt of message, as part of a communications protocol. The negative-acknowledgement (NAK or NACK) is a signal that is sent to reject a previously received message or to indicate some kind of error. Acknowledgments and negative acknowledgments inform a sender of the receiver's state so that it can adjust its own state accordingly.

Many protocols contain checksums to verify the integrity of the payload and header. Checksums are used to detect data corruption. If a message is received with an invalid checksum (that is, the data received would have a different checksum than the message had), the receiver can know that some information was corrupted. Most often, when checksums are employed, a corrupted message received will either not be served an ACK signal, or will be served a NAK signal.

Darstellungen

System Darstellung
Nr. 9237
UTF-8 E2 90 95
UTF-16 24 15
UTF-32 00 00 24 15
URL-kodiert %E2%90%95
HTML hex reference ␕
Falsches windows-1252-Mojibake ␕

Anderswo

Vollständiger Eintrag

Eigenschaft Wert
Alter (age) 1.1 (1993)
Unicode-Name (na) SYMBOL FOR NEGATIVE ACKNOWLEDGE
Unicode-1-Name (na1) GRAPHIC FOR NEGATIVE ACKNOWLEDGE
Block (blk) Control Pictures
Allgemeine Kategorie (gc) Other Symbol
Schrift (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Dekompositionstyp (dt) none
Decomposition Mapping (dm) Zeichen für U+2415 Symbol for Negative Acknowledge
Kleinbuchstabe (Lower)
Simple Lowercase Mapping (slc) Zeichen für U+2415 Symbol for Negative Acknowledge
Lowercase Mapping (lc) Zeichen für U+2415 Symbol for Negative Acknowledge
Großbuchstabe (Upper)
Simple Uppercase Mapping (suc) Zeichen für U+2415 Symbol for Negative Acknowledge
Uppercase Mapping (uc) Zeichen für U+2415 Symbol for Negative Acknowledge
Simple Titlecase Mapping (stc) Zeichen für U+2415 Symbol for Negative Acknowledge
Titlecase Mapping (tc) Zeichen für U+2415 Symbol for Negative Acknowledge
Case Folding (cf) Zeichen für U+2415 Symbol for Negative Acknowledge
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi-Kontrollzeichen (Bidi_C)
Bidi Mirrored (Bidi_M)
Composition Exclusion (CE)
Case Ignorable (CI)
Changes When Casefolded (CWCF)
Changes When Casemapped (CWCM)
Changes When NFKC Casefolded (CWKCF)
Changes When Lowercased (CWL)
Changes When Titlecased (CWT)
Changes When Uppercased (CWU)
Cased (Cased)
Full Composition Exclusion (Comp_Ex)
Default Ignorable Code Point (DI)
Dash (Dash)
Veraltet (Dep)
Diakritisch (Dia)
Emoji Modifier Base (EBase)
Emoji Component (EComp)
Emoji Modifier (EMod)
Emoji-Darstellung (EPres)
Emoji (Emoji)
Extender (Ext)
Extended Pictographic (ExtPict)
FC NFKC Closure (FC_NFKC) Zeichen für U+2415 Symbol for Negative Acknowledge
Grapheme Cluster Break (GCB) Egal
Grapheme Base (Gr_Base)
Grapheme Extend (Gr_Ext)
Grapheme Link (Gr_Link)
Hex Digit (Hex)
Hyphen (Hyphen)
ID Continue (IDC)
ID-Start (IDS)
IDS Binary Operator (IDSB)
IDS Trinary Operator and (IDST)
IDSU (IDSU) 0
ID_Compat_Math_Continue (ID_Compat_Math_Continue) 0
ID_Compat_Math_Start (ID_Compat_Math_Start) 0
Ideogramm (Ideo)
InCB (InCB) None
Indic Mantra Category (InMC)
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
Jamo Short Name (JSN)
Verbindungskontrollzeichen (Join_C)
Logische Reihenfolgenausnahme (LOE)
Math (Math)
Nicht-Zeichen-Codepunkt (NChar)
NFC Quick Check (NFC_QC) Ja
NFD Quick Check (NFD_QC) Ja
NFKC Casefold (NFKC_CF) Zeichen für U+2415 Symbol for Negative Acknowledge
NFKC Quick Check (NFKC_QC) Ja
NFKC_SCF (NFKC_SCF) Zeichen für U+2415 Symbol for Negative Acknowledge
NFKD Quick Check (NFKD_QC) Ja
Other Alphabetic (OAlpha)
Other Default Ignorable Code Point (ODI)
Other Grapheme Extend (OGr_Ext)
Other ID Continue (OIDC)
Other ID Start (OIDS)
Other Lowercase (OLower)
Other Math (OMath)
Other Uppercase (OUpper)
Prepended Concatenation Mark (PCM)
Pattern Syntax (Pat_Syn)
Pattern White Space (Pat_WS)
Quotation Mark (QMark)
Regional Indicator (RI)
Radical (Radical)
Sentence Break (SB) Andere
Soft Dotted (SD)
Sentence Terminal (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) Andere
White Space (WSpace)
XID Continue (XIDC)
XID-Start (XIDS)
Expands On NFC (XO_NFC)
Expands On NFD (XO_NFD)
Expands On NFKC (XO_NFKC)
Expands On NFKD (XO_NFKD)
Bidi Paired Bracket (bpb) Zeichen für U+2415 Symbol for Negative Acknowledge
Bidi Paired Bracket Type (bpt) None
Ostasiatische Weite (ea) neutral
Hangul Syllable Type (hst) Nicht anwendbar
ISO 10646 Comment (isc)
Joining Group (jg) No_Joining_Group
Joining Type (jt) Non Joining
Line Break (lb) Alphabetic
Numerischer Typ (nt) none
Numerischer Wert (nv) keine Nummer
Simple Case Folding (scf) Zeichen für U+2415 Symbol for Negative Acknowledge
Schrifterweiterung (scx)
Vertical Orientation (vo) U