alphanumeric
Letters plus numbers
Alphanumeric describes characters that are either letters or numbers, as opposed to symbols or punctuation.
Passwords are often required to be alphanumeric: Your password must contain at least eight alphanumeric characters.
The term combines alphabetic and numeric.
An alphanumeric code might look like A7B3X9.
Written symbol or message
- digitSingle numeric character
- symbolRepresentational mark or sign
- glyphVisual form of character
- uppercaseCapital letter form
lowercase · case-sensitive · printable · keyboard · typeset · font · typeface · script
Authentication string
- usernameAccount identification string
- codeSymbolic communication system
- PINAuthentication number sequence
- verificationProving something accurate
authentication · login · credential · token · ID · registration · VIN
Ordered succession of elements
- concatenationJoining items end-to-end
- patternRecurring arrangement or template
- formatArrangement and presentation style
- syntaxRules for arranging words
input · validation · parsing · regex · substring · length · field · form
letter
Written symbol or message
uppercase · lowercase · case-sensitive · printable · keyboard · typeset · font · typeface · script · character
password
Authentication string
- usernameAccount identification string
- codeSymbolic communication system
- PINAuthentication number sequence
verification · authentication · login · credential · token · ID · registration · VIN
sequence
Ordered succession of elements
- concatenationJoining items end-to-end
- patternRecurring arrangement or template
- formatArrangement and presentation style
syntax · input · validation · parsing · regex · substring · length · field · form · variable
ASCII
Electronic character encoding standard
- UTF-8Character encoding standard
- hexadecimalSixteen-digit numeral system
- Base64Binary-to-ASCII encoding scheme
binary · octal · decimal · BCD · MIME · encryption · hash · cipher · encode · decode
readout
Displayed recorded data
- LCDLowest shared fraction bottom
- LEDSemiconductor that glows
- seven-segmentNumeric display format
keypad · screen · digital · meter · panel · indicator · clock · scoreboard · odometer · calculator
- Password TermsPIN, code, passphrase, secret word, key
- password securitystrong password, weak password, password generator, password policy, password reset
- charactersprotagonist, antagonist, hero, character, characters
- encodingcipher, UTF-8, encryption, binary, ASCII
- catalogingcard catalog, catalogers, catalog card, cataloging, card catalogue
alphanumericnonalphanumeric
Not a letter or number
special characters · punctuation · whitespace · binary · symbolic
alphanumericpictographic
Using images as language
ideographic · iconographic · symbolic · emoji · logographic
- alphanumeric codeString of letters and digits