IB Computer Science Practice Exam 2025 – All-in-One Study Guide for Exam Mastery!

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What is a 'bit' in computing?

A group of eight bytes

The smallest unit of data, representing either 0 or 1

A 'bit' is defined as the smallest unit of data in computing and can represent one of two values: 0 or 1. This binary system is fundamental to computing, as all data stored, processed, and communicated by computers can be reduced to combinations of these two states.

Bits are the building blocks for more complex data types and structures, such as bytes (which consist of eight bits), and they are essential for everything from simple calculations to complex data processing and storage. Therefore, recognizing that a bit serves as the fundamental unit of information in binary data allows for a better understanding of how computers perform various tasks and function overall.

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A data block that contains letters and numbers

A type of software for data processing

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