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Computer Knowledge
Data Representation
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NTPC Graduate Tier 1 2025 Shift-3 📅 05 Jun, 2025

How many unique characters can be represented using the standard ASCII code?

A
128
B
256
C
64
D
512
Result Summary
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APEDIA

NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-3
How many unique characters can be represented using the standard ASCII code?
Correct Answer
128
[Encoding Foundations]: The American Standard Code for Information Interchange (ASCII) is a character encoding standard fundamentally essential for electronic c......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Computer Knowledge
Chapter -
Ref. Topic Data Representation
Pg. No -
💡 Analysis & Explanation
[Encoding Foundations] ▼
The American Standard Code for Information Interchange (ASCII) is a character encoding standard fundamentally essential for electronic communication.
[Bit Architecture] ▼
The original, traditional ASCII framework utilizes precisely 7 bits to construct a binary code for each specific character.
[Mathematical Capacity] ▼
In a binary system, a 7-bit structure can generate 2 raised to the power of 7 distinct combinations. Calculating 2^7 yields exactly 128 different encoded slots.
Conclusion ▼
Standard ASCII supports exactly 128 unique characters.
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