Correct Answer:
A. Bit
The Bit is the smallest and most fundamental unit of memory in a computer. It represents a single binary digit, either a 0 or a 1, which forms the basis of all digital information processing.
- A Byte is a collection of 8 bits and is the smallest addressable unit of memory in most computer architectures.
- A Nibble is half a byte, consisting of 4 bits.
- A Word is a larger unit, typically 16, 32, or 64 bits, representing the natural unit of data used by a particular processor design.