About this interactive
What you're seeing: a guided walkthrough that turns a binary value into decimal one column at a time. Why it matters: every binary-to-decimal conversion is the same move — each 1 is worth its place value (8, 4, 2, 1…) and the answer is just their sum. How to use it: step through the columns in Guided mode collecting each place value, then switch to Solo to read the value and enter the decimal yourself.
What you'll learn
- Convert a binary value to decimal by summing the place values of its 1-bits
Aligned to
CompTIA Tech+
1.2
Identify notational systems.
Key terms
- Binary
- The base-2 number system that uses only the digits 0 and 1; the native language of digital computers, which store and process data as electrical on/off states.
- Decimal
- The base-10 number system using digits 0–9; the standard system used in everyday counting and arithmetic, and the most common format for presenting numeric output to humans.
- Bit
- Short for binary digit, the smallest unit of data in computing, holding a single value of 0 or 1; all digital information is ultimately composed of bits.
- Place Value
- The weight assigned to a digit based on its position within a number; in binary, each position represents a successive power of 2 (1, 2, 4, 8, …), making position the key to decoding binary values.
Topics
Binary
Decimal
Number Systems
Data Representation
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