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As of Unicode version 16.0, there are 155,063 characters with code points, covering 168 modern and historical scripts, as well as multiple symbol sets. This article includes the 1,062 characters in the Multilingual European Character Set 2 subset, and some additional related characters.
Former Unicode blocks from before Unicode 2.0 Block range Historical block name Version when added Version when removed Range now occupied by Superseded by block Code points Assigned characters Scripts; U+1000..U+105F Tibetan [5] 1.0.0 1.0.1 Myanmar: Tibetan: 96 71 Tibetan: U+3400..U+3D2D Hangul [6] 1.0.0 2.0 CJK Unified Ideographs Extension A ...
The ASCII text-encoding standard uses 7 bits to encode characters. With this it is possible to encode 128 (i.e. 2 7) unique values (0–127) to represent the alphabetic, numeric, and punctuation characters commonly used in English, plus a selection of Control characters which do not represent printable characters.
Punched tape with the word "Wikipedia" encoded in ASCII.Presence and absence of a hole represents 1 and 0, respectively; for example, W is encoded as 1010111.. Character encoding is the process of assigning numbers to graphical characters, especially the written characters of human language, allowing them to be stored, transmitted, and transformed using computers. [1]
Characters which appear in both JIS X 0201 (single byte) and JIS X 0208 / JIS X 0213 (double byte) have both a halfwidth and a fullwidth form in Shift JIS.. In the days of text mode computing, Western characters were normally laid out in a grid on the screen, often 80 columns by 24 or 25 lines.
The letters I, O, Q, S, and Z were dropped to ease eye strain with 1, 0, 5, 3, and 2. That subset is named the DEC Alphabet after the company that first used it. For alphanumerics that are frequently handwritten, in addition to I and O , V is avoided because it looks like U in cursive, and Z for its similarity to 2 .
A letter has two punches (zone [12,11,0] + digit [1–9]); most special characters have two or three punches (zone [12,11,0,or none] + digit [2–7] + 8). The BCD code is the adaptation of the punched card code to a six-bit binary code by encoding the digit rows (nine rows, plus unpunched) into the low four bits, and the zone rows (three rows ...
The most common superscript digits (1, 2, and 3) were included in ISO-8859-1 and were therefore carried over into those code points in the Latin-1 range of Unicode. The remainder were placed along with basic arithmetical symbols, and later some Latin subscripts, in a dedicated block at U+2070 to U+209F.