Is the hexadecimal number used in the computer
This article mainly introduces whether the hexadecimal number is used in the computer. It is very detailed and has a certain reference value. Interested friends must finish reading it!
Instead of hexadecimal numbers, binary is used in the computer; binary is used for operation and storage; binary representation can save equipment in electronic computers; and because of the advantages that other binary systems, including ternary, do not have, most electronic computers still use binary.
The number system used in the computer is binary. The use of binary representation in electronic computers can save equipment. It can be proved theoretically that ternary system is the most economical equipment, followed by binary system. However, because binary system has advantages that other carry systems, including ternary system, do not have, most electronic computers still use binary system.
In addition, because only two symbols "0" and "1" are used in binary, Boolean algebra can be used to analyze and synthesize logical circuits in machines. This provides a very useful tool for designing electronic computer circuits.
The binary counting system uses only two digits. 0 and 1, so any element with two different stable states can be used to represent a bit of a number. In fact, there are many elements with two obvious stable states.
For example, the "on" and "off" of the neon lamp, the "on" and "off" of the switch, the "high" and "low", "positive" and "negative" of the voltage, the "hole" and "no hole" in the paper tape, the "signal" and "no signal" in the circuit, the South Pole and North Pole of magnetic materials, and so on. It is easy to use these distinct states to represent numbers.
Not only that, but more importantly, the two completely different states differ not only in quantity, but also in quality. In this way, the anti-interference ability and reliability of the machine can be greatly improved.
The four operation rules of the binary counting system are very simple. And the four operations can be summed up as addition and shift, so the circuit of the arithmetic unit in the electronic computer becomes very simple. Not only that, the circuit is simplified, the speed can be improved. This is also not comparable to the decimal counting system.
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