Computer Basics: Binary, octal, decimal, hex 2006-11-29 20:23
one or 10 binary number The decimal number is the most widely used counting system in daily life. The symbols that make up the decimal number have a total of 10 symbols such
Explanation: mutual conversion of binary, octal, decimal, and hexadecimal values: in addition to the remainder of 2, the integers are arranged in reverse order, that is, each time an integer is divided by 2, and the remainder is the number on the
Popular usage: each bit of binary represents a State.
001,010,100 indicates three states.
Through or | operations, you can combine various States.
001 | 010 = 011
001 | 010 | 100 = 111
You can remove a certain State through and & Operations.111 & 00
1) Number SystemBinary is used in computers, because binary is easy to operate, easy to implement, and reliable, it provides a favorable way for logical design and saves devices. In order to facilitate the description, it is also commonly used for
(1) the basic concept of the carry-in counting system sorts numeric symbols into digits in order, and counts them in a way from low to high, it is called the carry counting system. For example, we usually use the decimal system, which is short for
People have ten fingers, and it is very convenient to count them with fingers. However, once the number of objects exceeds 10, the finger is not enough. Of course, some people may think of toes. It is unrealistic to move your toes. You only need to
Python BASICS (10)-numbers, python basics-Numbers
The topic of this article is numbers in Python. Describes each numeric type in detail, the various operators they apply, and the built-in functions used to process numbers. At the end of the article,
Program apes may be unfamiliar with binary systems, which are widely used in computing technology. Binary data is a number represented by 0 and 12 digits. But many people will convert binary to integers, but how do you represent negative numbers in
Currently, the MD5 password database has a huge amount of data, and most common passwords can reverse query the plaintext of the password through the MD5 Digest. To prevent internal personnel (persons who can access database or database backup files)
Floating Point NumberIt is a number that belongs to a specific subset of a rational number. It is used in a computer to represent any real number. Specifically, this real number is obtained by multiplying an integer or a fixed number (that is, the
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