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Binary

PropertyValue
descriptionBase-2 representation and data model built around two possible states, commonly 0 and 1.
tagsref

In computing, binary means a base-2 representation built around two possible states, commonly written as 0 and 1.

Binary is foundational to how computers represent data, perform logic, and store or transmit low-level information.

What it does​

Binary provides the two-state representation used throughout digital systems.

It is commonly used to:

  • Represent numbers in base 2
  • Store data as bits and bytes
  • Express true/false logic states
  • Encode files, machine instructions, and low-level values
  • Distinguish between text data and non-text binary data

Core concepts​

Two-state representation​

Binary is based on only two values.

In digital systems, those values are often modeled as on/off, true/false, or 1/0.

Binary numbers​

A binary number uses only the digits 0 and 1.

That is the numeric form most directly aligned with digital hardware.

Binary data​

In software, binary can also describe data that is stored in raw machine-readable form rather than as plain text.

That is why people talk about binary files, binary protocols, or compiled binaries.

Common use cases​

  • Numeric representation inside computers
  • Boolean and logical operations
  • Executable program files
  • Encoded media and file formats
  • Low-level networking and storage systems

Practical notes​

  • Binary is broader than just binary numbers; it also describes how digital systems represent and process data.
  • The smallest common unit is the bit, which holds one binary state.
  • A boolean value is one simple logical concept built around the same two-state idea.
  • Many software tools distinguish between text data and binary data because they are processed differently.

Sources Used​

Frequently Asked Questions​

Is binary just 0 and 1?​

At the representation level, yes. Binary is built around two possible states, commonly written as 0 and 1.

Is binary only about numbers?​

No. It is also used more broadly for data representation, file formats, logic, and machine-level storage.

Is a boolean binary?​

A boolean is a logical two-state value, so it fits naturally into binary thinking.