Understanding Digital Data Units

Digital information is measured in bits and bytes. A single bit is the smallest unit, representing either a 0 or a 1.

Let's look at the common groupings:

• A nibble consists of a group of four bits (4 bits).
• A byte consists of a group of eight bits (8 bits). Note that 1 byte = 2 nibbles.

Larger units exist, such as:

• A kilobyte (KB) is approximately 1000 bytes.
• A megabyte (MB) is approximately 1000 kilobytes.

Identifying the Correct Term

The question asks for the name of a group of four bits.

Based on the definitions:

• Megabyte and Kilobyte represent much larger amounts of data.
• A Byte is 8 bits.
• A Nibble is exactly 4 bits.

Therefore, the correct term for a group of four bits is a nibble.