Q: At the very lowest level, what data does a computer understand?

or

Q: What is the most basic kind of data that a computer can comprehend?

- Media Access Control (MAC) addresses
- IP (Internet Protocol) addresses
**Binary numbers**- Hexadecimal digits

**Explanation: **At its most fundamental level, a computer is capable of comprehending binary numbers. The binary is a numerical system that uses just two numbers, 0 and 1, and is based on the base-2 system. A computer can represent and alter all of the data that it processes, including text, graphics, and instructions, via the use of binary digits, also known as bits. Every binary digit corresponds to a switch that is located inside the hardware of the computer. This switch may be in either of two states: either it is on (1) or it is off (0). For all computer operations and data processing, this basic grasp of binary serves as the foundation.