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A normal byte consists of 8 bits, meaning 8 0s or 1s, this means it can be anything from 00000000 to 11111111. These are just binary numbers, and binary 00000000 is normal (decimal) 0, and 11111111 is decimal 255. So one byte can be any number from 0 to 255. If you don't understand binary, please look at http://en.wikipedia.org/wiki/Binary_numeral_system
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Which unit of storage used to represent a character?
A character is typically represented using one byte of storage, which consists of 8 bits. In most encoding systems, such as ASCII, one byte can represent 256 different characters. However, for more complex character sets like UTF-8, which can represent a wider range of characters, a single character may use between one and four bytes.
How is ASCII used to represent text in a computer system?
ASCII is a simple (and increasingly obsolete) code which maps alphanumeric characters to numbers in the 0..255 range. Thus, any phrase expressed as a series of these alphanumeric characters can be expressed as a series of bytes with the corresponding numeric values, one byte per character. For example, the letter A is represented by a byte of numerical decimal value 65. It is characteristic for the ASCII code that it supports a limited alphabet of 256 different characters. While this might seem much in light of the fact that the 26 characters cover the A-Z alphabet, codes are assigned to lower-case and upper-case characters, digits, punctuation marks, a wide range of other characters including some simple symbols, and a range of 'foreign characters.' With today's demands on localized software and support for the local alphabet, the ASCII code becomes increasingly obsolete because it cannot support a great number of non-English alphabets.
Why do need Unicode when you have Ascii?
ASCII only has 127 standard character codes and only supports the English alphabet. While you can use the extended ASCII character to provide a set of 256 characters and thus support other languages there's no guarantee that other systems will use the same code page, so the characters will not display correctly across all systems (the characters you see will depend upon which code page is currently in use). Moreover, some languages, particularly Chinese, have thousands of symbols that simply cannot be encoded in ASCII. UNICODE encoding supports all languages and the first 127 symbols are also the same as ASCII, so all characters appear the same across all systems. UTF8 is the most common UNICODE encoding in use today because it uses one-byte per character for the first 127 characters and is therefore fully compliant with non-extended ASCII. If the most-significant bit is set then the character is represented by 2 or more bytes, the combination of which maps to the UNICODE encoding.
How many bytes is a ASCII composed of?
ASCII (American Standard Code for Information Interchange) is composed of 7 bits per character, which allows for 128 unique characters, including letters, digits, and control characters. However, it is commonly stored in an 8-bit byte, meaning each ASCII character typically occupies 1 byte of memory in most computer systems. Thus, while ASCII itself is 7 bits, it is generally represented as 1 byte in storage.
Is a byte a character of data?
Yes, a byte is often considered a character of data, especially in the context of computer systems. A byte typically consists of 8 bits and can represent 256 different values, which is sufficient to encode standard characters in character encoding systems like ASCII. However, in more complex encodings like UTF-8, a single character may be represented by one or more bytes.
Define byte offset?
A byte offset, typically used to index into a string or file, is a zero-based number of bytes. For example, in the string "this is a test", the byte offset of "this" is 0, of "is" is 5,"a" is 8, and "test" is 10.Note that this is not always the same as the "character offset". Some characters, such as Chinese ideograms, require two or more bytes to represent. Using ASCII characters only will ensure that the byte offset is always equal to the character offset.
What does the computer term bytes mean?
8 bits form a byte. For example to store ASCII characters. Othe language encodings need more bytes, e.g., asian languages. A single bit of course is a 0 or 1 meaning a base2 system. Hence 8 bits or a byte can represent 2 to the power of 8 combinations.
Is a byte a single character?
In ASCII, EBCDIC, FIELDATA, etc. yes. However Unicode characters are composed of multiple bytes.
What do you call an 8-bit sequence that you use to represent a basic symbol?
An 8-bit sequence used to represent a basic symbol is called a byte. In computing, bytes are often used to encode characters in character encoding schemes such as ASCII, where each character corresponds to a unique byte value. This allows for the digital representation of text and symbols in a format that computers can process.
How many bits are in extended ASCII byte?
An extended ASCII byte (like all bytes) contains 8 bits, or binary digits.
How many characters are in a kilabyte?
If you're referring to kilobyte, then it contains 1024 bytes and if the characters are the standard ASCII character set where 1 character is 1 byte, then a kilobyte would have 1024 characters.
How many bytes does the letter S take up?
The letter S uses 1 byte of memory, as do all the other ASCII characters.
