| 释义 |
alphanumeric, a. and n. pl.|ˌælfənjuːˈmɛrɪk|
Also alpha-numeric.
[f. alphabet n. + numerical a.]
A. adj. Consisting of or employing both letters and numerals; applied esp. to a system of coding in computers. Also alpha-numerical.
1955Bradshaw & Newman in M. J. Dooher Electronic Data Processing in Industry i. 18 Typical methods of classifying, as to both type of classification and examples, are: (a) alphanumeric codes, commonly used for customer accounts where it is desirable to have the ease of numeric filing coupled with the advantages of alphabetic reference. 1959Brit. Standard 3174 (title) Alpha-numeric punching codes for data processing cards. 1961Times 3 Oct. (Computer Suppl.) p. viii (Advt.), It has a built-in parity check on all alpha-numeric input information. 1962B.S.I. News Apr. 15/1 Mixed alpha-numerical systems..caused many mistakes in transcription.
B. n. pl. Alphanumeric characters.
1970Publishers' Weekly 8 June 152 There is a strong effort under way to bring pictures within the compass of the computer, thereby making possible the combination of text—or, to say it in computer language, alphanumerics—with pictures. 1975Physics Bull. July 325/2 In the experimental array there is a display area of 6 cm × 5 cm, sufficient for 8 rows of 16 characters (each character built up from a 7 × 5 block of cells in the usual way for alphanumerics). 1978Nature 19 Oct. p. xvi/2 Data can be presented graphically in point or histogram mode, and alphanumerics are presented in upper and lower case, normal, underlined, bold face, and video reverse. |