1 single-sided single-layer DVD-5 disk has a storage capacity of 4.7G, and 1 Chinese characters occupy 2 bytes. This DVD can store tens of thousands of Chinese characters.

1 single-sided single-layer DVD-5 disk has a storage capacity of 4.7G, and 1 Chinese characters occupy 2 bytes. This DVD can store 2523293286.4 Chinese characters.

4.7G = . 7 * 1024 * 1024 * 1024 byte = 5046586572.8 byte； 5046586572.8 divided by 2=2523293286.4 Chinese characters.

A byte is usually 8 bits long. However, some old computer structures use different lengths. To avoid confusion, words are used instead of bytes in most international documents. In most computer systems, a byte is an 8-bit long data unit, and most computers use a byte to represent a character, a number or other characters. A byte can also represent a series of binary bits.

In some computer systems, four bytes represent a word, which is the unit that the computer can effectively process data when executing instructions. Some language descriptions need two bytes to represent a character, which is called a double-byte character set. Some processors can process double-byte or single-byte instructions. Bytes are usually abbreviated as "b", bits are usually abbreviated as lowercase "b", and the size of computer memory is usually expressed in bytes.

Extended data

Conversion:

1, ASCII code: an English letter (regardless of case) takes up one byte. As a digital unit in a computer, a sequence of binary numbers is usually an 8-bit binary number. Convert to decimal, the minimum value is-128 and the maximum value is 127. For example, ASCII code is one byte.

2.UTF-8 encoding: one English character is equal to one byte, and one Chinese (including traditional) is equal to three bytes. Chinese punctuation takes up three bytes and English punctuation takes up one byte.

3.Unicode encoding: one English is equal to two bytes, and one Chinese (including traditional) is equal to two bytes. Chinese punctuation accounts for two bytes, and English punctuation accounts for two bytes.