Computer Fundamentals — Bits Per Byte In standard modern computing systems, how many bits make up one byte?

Introduction / Context:The byte is the basic addressable unit of data in most computer architectures. Understanding its size in bits is foundational for memory, storage, networking, and instruction set concepts.

Given Data / Assumptions:

• We are referring to conventional, standardized systems used today.
• Historic variants existed, but the industry has converged on a common definition.

Concept / Approach:

Modern computing universally defines a byte as 8 bits, often called an octet in networking to avoid ambiguity. This convention supports binary representations of characters (e.g., ASCII, UTF-8 code units), addresses, and packed fields across platforms.

Step-by-Step Solution:

Recall standard definition: 1 byte = 8 bits.Apply to common contexts: memory sizes (bytes), network octets, file sizes.Select the option “8.”

Verification / Alternative check:

Networking standards use “octet” to explicitly mean 8 bits; OS and hardware documentation treat the byte as 8 bits across mainstream architectures.

Why Other Options Are Wrong:

4/16/32: Represent nibble, half-word/word sizes in some contexts, but not the standard byte size.

Common Pitfalls:

Confusing historical non-8-bit bytes with the modern standard; today’s systems overwhelmingly use 8-bit bytes.

Final Answer:

8