8️⃣ Why Memory Is Stored in 8-Bit Units

Memory is typically stored and addressed in bytes, which are 8 bits wide.

This convention balances hardware simplicity, software compatibility, and encoding power.

🎯 Motivation

A single bit can only represent two states: $0$ or $1$. That’s too limited for most unit data types. By grouping 8 bits into a byte, we unlock:

• $2^8 = 256$ distinct values
• Enough to represent characters, small integers, control codes, and instruction opcodes
• A general-purpose unit that’s meaningful across hardware and software layers

So yes—8 bits is the smallest general-purpose unit of memory that can “entertain” most atomic data types.

📊 Comparative Table: Bit Width vs Representational Power