U meaning in Computing ?

Answer:

What is Unicode mean?

Unicode, formally the Unicode Standard, is an information technology standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems. The standard, which is maintained by the Unicode Consortium, defines 144,697 characters covering 159 modern and historic scripts, as well as symbols, emoji, and non-visual control and formatting codes.

The Unicode character repertoire is synchronized with ISO/IEC 10646, each being code-for-code identical with the other. The Unicode Standard, however, includes more than just the base code. Alongside the character encodings, the Consortium's official publication includes a wide variety of details about the scripts and how to display them: normalization rules, decomposition, collation, rendering, and bidirectional text display order for multilingual texts, and so on. The Standard also includes reference data files and visual charts to help developers and designers correctly implement the repertoire.

Unicode's success at unifying character sets has led to its widespread and predominant use in the internationalization and localization of computer software. The standard has been implemented in many recent technologies, including modern operating systems, XML, Java (and other programming languages), and the .NET Framework.

Unicode can be implemented by different character encodings. The Unicode standard defines Unicode Transformation Formats (UTF): UTF-8, UTF-16, and UTF-32, and several other encodings. The most commonly used encodings are UTF-8, UTF-16, and the obsolete UCS-2 (a precursor of UTF-16 without full support for Unicode); GB18030, while not an official Unicode standard, is standardized in China and implements Unicode fully.

UTF-8, the dominant encoding on the World Wide Web (used in over 95% of websites as of 2020, and up to 100% for some languages) and on most Unix-like operating systems, uses one byte (8 bits) for the first 128 code points, and up to 4 bytes for other characters. The first 128 Unicode code points represent the ASCII characters, which means that any ASCII text is also a UTF-8 text.

UCS-2 uses two bytes (16 bits) for each character but can only encode the first 65,536 code points, the so-called Basic Multilingual Plane (BMP). With 1,112,064 possible Unicode code points corresponding to characters (see below) on 17 planes, and with over 144,000 code points defined as of version 14.0, UCS-2 is only able to represent less than half of all encoded Unicode characters. Therefore, UCS-2 is obsolete, though still used in software. UTF-16 extends UCS-2, by using the same 16-bit encoding as UCS-2 for the Basic Multilingual Plane, and a 4-byte encoding for the other planes. As long as it contains no code points in the reserved range U+D800–U+DFFF, a UCS-2 text is valid UTF-16 text.

UTF-32 (also referred to as UCS-4) uses four bytes to encode any given code point, but not necessarily any given user-perceived character (loosely speaking, a grapheme), since a user-perceived character may be represented by a grapheme cluster (a sequence of multiple code points). Like UCS-2, the number of bytes per code point is fixed, facilitating code point indexing; but unlike UCS-2, UTF-32 is able to encode all Unicode code points. However, because each code point uses four bytes, UTF-32 takes significantly more space than other encodings, and is not widely used. Although UTF-32 has a fixed size for each code point, it is also variable-length with respect to user-perceived characters. Examples include: the Devanagari kshi, which is encoded by 4 code points, and national flag emojis, which are composed of two code points. All combining character sequences are graphemes, but there are other sequences of code points that are as well, for example \r\n.

reference

Full Form	Category
Uncertain	Academic & Science
Uracil	Academic & Science
Unified atomic mass unit	Academic & Science
Unexcelled	Academic & Science
Unsatisfactory	Academic & Science
Undergraduate	Academic & Science
University	Academic & Science
Undecided	Academic & Science
Undergirding	Academic & Science
Uranium Participation Corporation	Business
U S Airways Group, Inc.	Business
Unlimited	Business
Undetectable	Chemistry
Uranium	Chemistry
Universal Pictures	Community
Use	Community
Uhf	Community
Union	Community
Unity	Community
Unification	Community
Urban	Community
Understanding	Community
Universal	Community
Unconditional	Computer Assembly Language
Up	Computer Assembly Language
Unwind Tape	Computer Hardware
Userid	Computing
Unlocked	Computing
Undefined	Computing
Unicode	Computing
Users	Computing
Integrated Circuit (circuit Diagram Marking)	Electronics
Subsampled Raw Yuv File Bitmap Graphics	File Type
Unhappy	General
Upbuilding	General
Ursula	General
The Uncompensated	General
The Usual	General
Unplasticised	General
Underwear	General
Uncommon	General
Unlicensed	Governmental
Uncompromising	Governmental
Unavailable	Governmental
Unsigned	Governmental
Uncommitted	Governmental
Uninduced	Governmental
Unredacted	Governmental
Üniversite	International
Umleitung	International
U-Bahn	International
Und	International
You	Internet Slang
Useless	Jobs
Upsilon	Maths
Units	Measurement Unit
Unusual	Medical
Ultralente insulin	Medical
Under	Medical
Undetected	Medical
Wind Speed	Military and Defence
Unterseeboot	Military and Defence
Unknown	Military and Defence
Unreliable	Military and Defence
Uphill	Military and Defence
Unclassified	Military and Defence
Unmodified	Military and Defence
Unidentified	Military and Defence
Uninterpretable	Physics Related
Uninstall	Softwares
Underfloor	Space Science
Undefeated	Sports
Unassisted put out	Sports
United	Sports
Ultimate	Sports
Unofficial	Sports
Uniform	Transport & Travel