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Unit 2: Data

AP Computer Science Principles — Note Packet

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Key Terms

Binary

A ______ (base-2) number system that computers use, represented by 0s and 1s.

Bit

A single ______ digit, which is either a 0 or a 1.

Positional Number System

A system where the value of a digit depends on its ______ within the number.

MSB (Most Significant Bit)

The ______ bit in a binary number, holding the highest positional value.

Byte

A group of ______ bits, serving as a fundamental unit for measuring data storage.

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