According to my information the word byte itself was derived from the phrase by-eight which was eight (8) bits words. the convenience we find in 8 bits words is the conversion to hexadecimal values since the value 00000000 = 00 & 11111111 = FF (Dec 255 for unsigned and -127 for signed) it is easy to do all arithmetic operations on such ...

2012年7月23日 · An 8-Bit character can only have 256 possible characters. Whereas a 16-bit can have 65,536. A 32-bit character can have 4,294,967,296 possible characters. A character set that large should be able to store every possible character in the world. Whereas a 8-bit character set can only store enough characters for the English language.

2021年12月9日 · A byte is at least large enough to contain any member of the basic execution character set and the eight-bit code units of the Unicode UTF-8 encoding form and is composed of a contiguous sequence of bits, the number of which is implementation- defined. So, it's at least 8 bits. But it could be more.

2013年12月24日 · Since the exponent is 8 bits, the range of exponent values can be anywhere between 00000000 and 11111111 (which are reserved for 0 and infinity, respectively). However, any exponent value between 00000001 and 11111110 is valid. So, accounting for a bias of -127, you can achieve an exponent of 127.

2013年1月29日 · This isn't strictly speaking true. Some languages (like C/C++) provide ways of storing boolean values as single bits, if these bits are bundled in a single byte. In other words, in C, you can store eight booleans in a byte. But few ever use this since memory is cheap and processors manipulate data in 8/16/32/64 bit chunks. –

Saving one bit per character was worthwhile at the time, and even six-bit character codes weren't uncommon. Even when 8 bits were used per character, the eighth was often a parity bit and not part of the character code.

2012年12月10日 · For example, you can store 256 different values in an 8 bit number, so 8 bits can address 256 bytes. 2 10 = 1024, so you need 10 bits to address every byte in a kilobyte. Likewise, you need 20 bits to address every byte in a megabyte, and 30 bits to address every byte in a gigabyte. 2 32 = 4294967296, which is the number of bytes in 4 gigabytes ...

Perhaps you were thinking of ASCII which is 7-bit and a proper subset of UTF-8. I.e. any valid ASCII stream is also a valid UTF-8 stream. If you were thinking of 8-bit character sets, one very important advantage would be that all representable characters are 8-bits exactly, where in UTF-8 they can be up to 24 bits.

2022年10月14日 · For 32 bits, seven exponent bits wouldn’t give you even a bigger range than 64 bit integers. One benefit of floating point is a bigger range, so I’d want e >= 8. On the other hand, 24 bit mantissa is not really good for precision, so I wouldn’t want less. So 8/24 bits is …

2021年4月24日 · The key you need to understand is a "multiplexer". Imagine that you have an 8-bit computer with 8-bit addresses, wired to a single RAM chip. Inside the chip, a multiplexer decodes the 8-bit address to one of 256 values, effectively turning on one of 256 wires.