alphanumerics
Letters and digits
Alphanumerics are characters that include both letters and numbers—the alphabet plus the digits 0-9.
The term describes text mixing letters and numerals: The password must contain alphanumerics.
In computing and data processing, alphanumeric fields accept any combination of letters and numbers, as opposed to strictly numeric input.
Alphabetic characters or mail
- digitsSingle-place numerals
- glyphsCarved symbolic figures
- symbolsMarks conveying meaning
- uppercaseCapital letter form
lowercase · ASCII · typography · font · serif · sans-serif · typeset · text
Authentication string
- PINAuthentication number sequence
- authenticationConfirming genuine identity
- encryptionConverting data into code
- credentialsEvidence of qualification or identity
two-factor · verification · login · access code · cipher · hash · token · passphrase
Unique alphanumeric product identifier
- license plateVehicle identification marker
- SKURetail product identifier
- barcodeEncoded product stripes
- ISBNStandard publication number
password · username · PIN · code · tag · label · ID · tracking number
Changeable elements in equations
- stringsThin flexible lines
- syntaxRules for arranging words
- hexadecimalSixteen-digit numeral system
- binaryConsisting of two parts
octal · regex · parsing · validation · input · data types · concatenation · arrays
letters
Alphabetic characters or mail
uppercase · lowercase · ASCII · typography · font · serif · sans-serif · typeset · text · script
password
Authentication string
- PINAuthentication number sequence
- authenticationConfirming genuine identity
- encryptionConverting data into code
credentials · two-factor · verification · login · access code · cipher · hash · token · passphrase · CAPTCHA
serial number
Unique alphanumeric product identifier
- license plateVehicle identification marker
- SKURetail product identifier
- barcodeEncoded product stripes
ISBN · password · username · PIN · code · tag · label · ID · tracking number · VIN
variables
Changeable elements in equations
- stringsThin flexible lines
- syntaxRules for arranging words
- hexadecimalSixteen-digit numeral system
binary · octal · regex · parsing · validation · input · data types · concatenation · arrays · identifiers
alphanumericspunctuation marks
Symbols clarifying written meaning
special characters · punctuation · symbols · whitespace · diacritics
alphanumericsbinary data
Information as ones and zeros
graphics · images · audio · multimedia · machine code
- alphanumeric codeString of letters and digits