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It is simpler to code each digit as off-or-on (binary) rather than at 10 different voltages to represent the digits 0, 1, 2, ..., 9 if using decimal. There is a greater risk of errors in reading or writing information in the latter case.

Similarly, with optical data, it is safer to have a "pit" or "not-a-pit" which a laser can easily work with rather than pits of ten different depths.

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The system that digital computers use to represent numeric data?

It uses the Binary Numbering System.


Why are binary numbers important in digital computing?

Computers store and process data in binary form: current on or off, location magnetised or not, laser reader hits a pit or not.


Are there spaces between binary letters?

No, there are typically no spaces between binary letters (bits) in a binary sequence. Binary code consists of a continuous string of 0s and 1s, representing data in a format that computers can understand. Spaces may be used for readability in certain contexts, such as when displaying binary code for human interpretation, but they do not exist in the actual data representation.


What things use binary?

Binary is used in various applications, primarily in computing and electronics. It serves as the foundational language for computers, representing all data types—such as text, images, and sound—through combinations of 0s and 1s. Additionally, binary is utilized in digital circuits, networking protocols, and programming languages, enabling efficient data processing and communication. Furthermore, binary also appears in areas like telecommunications and cryptography.


Why-do computers-use binary-code-instead of decimal?

Computers use binary code instead of decimal because binary, which consists of only two states (0 and 1), aligns perfectly with the electronic circuitry of computers. These circuits operate using two voltage levels, representing off (0) and on (1), making binary more reliable for processing and storage. Additionally, binary simplifies the design of digital circuits, leading to enhanced efficiency and speed in computations.