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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.


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.


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.


Why does CPU use binary code?

CPUs use binary code because it aligns with the two-state nature of electronic circuits, where transistors can be either on or off. This binary system (0s and 1s) simplifies the design and operation of digital circuits, allowing for reliable data processing and storage. Additionally, binary code enables efficient computation and error detection, making it the fundamental language for computers.