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It is easier to store data and instructions as a series of two-valued (binary) states. These may be holes or no holes in the cards or paper tapes of the 1960s and 70s, or magnetised and not magnetised states (for magnetic tapes), pits and no pits for CDs and so on.

It is possible, in theory , to store information as a set of different levels (of voltage or whatever) but these will degrade over time. The difference between two extreme values is the most robust and so carries the lowest risk of data corruption or errors.

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Q: Why does a computer use the binary number system?
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Related questions

What are number systems use in computer?

Binary Number System


What number system did the first electronic computer use?

Binary


First computer to use binary number system?

The first computer to use the binary number system was probably the Z1, started by Konrad Zuse in 1936. It was a mechanical computer, not fully programmable, but is still considered a computer.


What base system does a computer use?

Computers are based on a binary number system.


What are number systems use in computer to store data and perform calculations?

Binary number system ,which has only two digits 0 and 1.


What is the advantage of having the binary number system to represent data inside the computer instead of the decimal number system?

They use the binary sysem because the number 1 means the switch is turned on and the number 0 means the switch is off. There is no way to use the decimal number system.


What numbering system do computer use?

They use the binary code (1010101011001100)


What is the difference between a number system and a binary system?

A binary system is a special type of a number system. The binary system uses only two digits, other number systems use more.


Why all digital devices use binary number system?

The binary number system inside the electronics of a computer is generally represented by a high or a low voltage, a charged or uncharged capacitor, or sometimes even a switch that is on or off. That these electronics are generally in either one or the other state, the binary system is the simplest.


Why binary number system used in digital system?

They are the best numbers for computers to use. In simple terms, as computers are electronic they use electronic currents, which can be on or off, like a light switch. 1 and 0, which are the only digits binary has, can be used to represent these two states. Binary forms the basis to all computer memory and operations.


How do you use binary in a sentence?

The equation was based on the number 2 or the binary numeration system.


Do computers use the decimal number system to store data?

No, they use the binary system