# Who invented the number system 2?

## Dual number system (dual system)

There are 10 types of people.
Those who understand the binary system and those who don't.

The decimal way of counting (10s) may seem logical to us. But nature doesn't have 10 fingers and 10 toes. It operates on a simpler number system. The dual number system with the base 2. There are two states. Yes or no, on or off.

The dual number system was created because you can only differentiate between two states in electronic data processing. These so-called binary states are usually abbreviated with H and L. The logical states are 1 and 0.

### Binary (binary system)

According to DIN 44300, the term binary refers to something that can take on two characters. Dual is a number system that only consists of two characters.

 Electronic component State 0 State 1 Relay or switch open closed Tube or transistor not conductive conductive Electric impulse Impulse not available Impulse present pages Left Right question No Yes value not correct true Digital technology low high colour White black capacitor unload loaded tension 0 V 5 V Kitchen sink unmagnetized magnetized lighting bright dark

Nominal values: 0 and 1
Base: 2
Largest face value: 1
Significance: 20 = 1, 21 = 2, 22 = 4, etc.

This table serves for a better understanding of the counting method in the dual number system. In the first digit there is a constant change between 0 and 1. In the second digit there is a constant change between 00 and 11. In the third digit there is a constant change between 0000 and 1111.

8 (23)4 (22)2 (21)1 (20)decimal number
00000
00011
00102
00113
01004
01015
01106
01117
10008
10019
101010
101111
110012
110113
111014
111115
Exponent n 2n
12
24
38
416
532
664
7128
8256
9512
101.024
112.048
124.096
138.192
1416.384
1532.768
1665.536
17131.972
18262.144
19524.288
201.048.576
212.097.152
224.194.304
238.388.608
2416.777.216
2533.554.432
2667.108.864
27134.217.728
28268.435.456
29536.870.912
301.073.741.824
312.147.483.648
324.294.967.296

### Spellings of the dual numbers

Dual numbers are marked with a "2" as an index or a preceding percentage sign (%). Other spellings with "b" or "B" are worthy of interpretation because of their similarity to the hexadecimal representation and are therefore incorrect and only acceptable in exceptional cases.

• 1002 (correct spelling)
• % 100 (correct spelling)
• 100b (incorrect spelling)
• 100B (incorrect spelling)

### Other related topics:

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