Eight bytes contain 64 bits of information, so you can store 2^64 ~ 10^20 unique items using those bits. Those items can easily be interpreted as the integers from 0 to 2^64 - 1 . So you cannot store 302 decimal digits in 8 bytes; most numbers between 0 and 10^303 - …

Feb 13, 2011 · The importance of the ɪʙᴍ 360, which had 8‑bit bytes whether they held ᴀsᴄɪɪ or not, should not be understated. Nevertheless, many machines long supported ᴅᴇᴄ’s Radix‑50 . This was a 40‑character repertoire wherein three of its characters could be efficiently packed into a single 16‑bit words under two distinct ...

An object that is "8 bytes aligned" is stored at a memory address that is a multiple of 8. Many CPUs will only load some data types from aligned locations; on other CPUs such access is just faster. There's also several other possible reasons for using memory alignment - without seeing the code it's hard to say why.

It started out as 6 bits for English characters, grew to 7 bits to support ASCII, and eventually the popularity of the 8 bit IBM System/360 caused the global acceptance of 8 bit bytes. A byte is a software unit representing an amount of data, while a word is more tied to the processor/memory architecture and represents work units (registers) in ...

May 12, 2022 · A kilobyte, or KB, is 1,024 bytes a megabyte, or MB, is 1,024 2 bytes a gigabyte, or GB, is 1,024 3 bytes a terabyte, or TB, is 1,024 4 bytes a petabyte, or PB, is 1,024 5 bytes Computer manufacturers often round off these numbers and say that a megabyte is 1 million bytes and a gigabyte is 1 billion bytes.

"str and bytes are 2 different classes" - In Python 3, yes. In Python 2, no. I repeat: Encode() returns an 8-bit string both under Python 2 and Python 3. It's called "str" in Python 2 and "bytes" in Python 3, but both are 8-bit strings. –

Apr 23, 2019 · Way back, people used CRC-32, which produces a 33-bit hash (basically 4 characters plus one bit). There is also CRC-64 which produces a 65-bit hash. MD5, which produces a 128-bit hash (16 bytes/characters) is considered broken for cryptographic purposes because two messages can be found which have the same hash.

Apr 19, 2012 · UTF-8 uses 1-4 bytes per character: one byte for ascii characters (the first 128 unicode values are the same as ascii). But that only requires 7 bits. If the highest ("sign") bit is set, this indicates the start of a multi-byte sequence; the number of consecutive high bits set indicates the number of bytes, then a 0, and the remaining bits ...

Apr 12, 2017 · The max value 8 bits can hold is: 11111111 which is equal to 255. If you have a signed value, the max value it can hold is 127, the left-most bit is used for sign. The binary 10000000 equals 128 (2 ^ 7), not 256.

Jul 19, 2011 · Cat XXXX, YY and ZZ bytes together to create your pseudo-guID. But that approach uses only random number generation. You could take a hint from the GUID algorithms (current and past) and populate some of the 8 bytes with a node ID value or a DateTime hash or something such combined with a random value to reduce the risk of collisions.