The byte consists of 8 bits, which can represent a character (A ~ Z), numbers (0 ~ 9), or symbol (,.?!% & - * /), is the basic unit of memory storage data. 1 byte = 8 bit 1 kb = 1024 bytes = 210 bytes 1 MB = 1024 KB = 220 BYtes 1 GB = 1024 MB = 230 BYTES bit: "Bit)" is the smallest data unit in the electronic computer. The state of each bit can only be 0 or 1. Byte: 8 binary positions constitute 1 "byte", which is the basic metering unit of storage. 1 byte can store 1 English letters or half Chinese characters, in other words, 1 Chinese character occupies 2 bytes of storage space. Word: "Word" consists of several bytes, the number of characters of the word is called the word length, and the machines of different grades have different words. For example, an 8-bit machine, it is equal to 1 byte, the word length is 8 bits. If it is a 16-bit machine, then 1 word is composed of 2 bytes, the word length is 16 bits. Word is a computer for data processing and operations. KB: In a general metering unit, typically k represents 1000. For example: 1 km = 1000 meters, often written as 1km; 1 kg = 1000 grams, written as 1kg. The same k is also similar in binary. Just k represented 1024, that is, 10 times of 2. 1kb represents 1K Byte, which is 1024 bytes. MB: M (mega) in the measurement unit is 10 6 times, see M naturally thinks that there is six 0 times after the value of the value, that is, once it will be extended. In binary, MB also expressed a magnitude of millions of levels, but 1MB is not equal to 10,000 bytes, but 1048576 bytes, ie 1MB = 2e 20 bytes = 1048576bytes. Meter unit of the data in the computer system. In the standard 10 envelopment metric system, the magnification relationship is as follows.
KILO (K) * = 10 ^ 3 = 1,000 Thousand MEGA (M) = 10 ^ 6 = 1,000,000 MILLION million GIGA (G) = 10 ^ 9 = 1,000,000,000 Billion billion tra (t) = 10 ^ 12 = 1,000,000,000,000 Trillion Thousands of * In the metric system, "K" or "kilo" prefix only uses lowercase letters in the computer / communication industry, the calculation data transfer speed is also calculated using the amount of metric data per second.
1 bit (b) = 0 or 1 = one binary Digit a binary bit 1 kilobit (kB) = 10 ^ 3 bits = 1,000 bits one thousand bits 1 megabit (MB) = 10 ^ 6 bits = 1,000,000 bits 1 million Bit 1 Gigabit (GB) = 10 ^ 9 bits = 1,000,000,000 BITS 10 trillion yuan according to the principal, the transmission speed can have two representations BPS and BPS, but they are strict. B in the BPS is used by BYTE bytes in the binary system, and B in the BPS is bit elements in the decimal system. In the 56K dial, the 100M LAN is measured. When used for software download, the download tool is generally calculated by BPS, so there is 8 bits = 1 Byte's translational relationship, then 56kbps dial limit download speed It is 56kbps / 8 = 7kbps to download 7k bytes per second. In data storage, capacity calculation, generally combined with the enrichment of the metric and binary data calculation method (binary) 1 byte (b) = 8 bits (b) byte = 8 binary position 1 kilobyte (k / kb ) = 2 ^ 10 BYtes = 1,024 bytes kilobytes 1 megabyte (mb) = 2 ^ 20 bytes = 1,048,576 BYTES megabytes 1 gigabyte (g / gb) = 2 ^ 30 Bytes = 1,073,741,824 BYTES Gigabit 1 Terabyte (t / tb) = 2 ^ 40 Bytes = 1,099,511,627,776 BYTES Ji field Some memory manufacturers, especially hard disk manufacturers, more closely combined with decimal, why is the capacity displayed by the operating system and some of the capacity indicated by the manufacturer. Some differences. (Decimal)
1 byte (b) = 8 bits (b) 1 kilobyte (k / kb) = 10 ^ 3 bytes = 1,000 bytes 1 megabyte (mb) = 10 ^ 6 bytes = 1,000,000 bytes 1 Gigabyte (g / gb) = 10 ^ 9 bytes = 1,000,000,000 bytes 1 terabyte (t / tb) = 10 ^ 12 Bytes = 1,000,000,000,000 bytes computer metering unit and credit table network bandwidth table
